ANIMAL FOOD OR ANIMAL FOOD ADDITIVE CONTAINS ONE OR MORE POLYPEPTIDES WITH LYSOZYME ACTIVITY AND USES THEREOF

Description

Background of the Invention Field of the Invention

[0001] The present invention relates animal feed or animal feed additives comprising one or more polypeptides having lysozyme activity. The invention also relates to polypeptides having lysozyme activity, polynucleotides encoding the polypeptides nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.Description of the Related Art

[0002] Lysozyme is an O-glycosyl hydrolase produced as a defensive mechanism against bacteria by many organisms. The enzyme causes the hydrolysis of bacterial cell walls by cleaving the glycosidic bonds of peptidoglycan; an important structural molecule in bacteria. After having their cell walls weakened by lysozyme action, bacterial cells lyse as a result of unbalanced osmotic pressure.

[0003] Lysozyme naturally occurs in many organisms such as viruses, plants, insects, birds, reptiles and mammals. In mammals, Lysozyme has been isolated from nasal secretions, saliva, tears, intestinal content, urine and milk. The enzyme cleaves the glycosidic bond between carbon number 1 of N-acetylmuramic acid and carbon number 4 of N-acetyl-D-glucosamine. In vivo, these two carbohydrates are polymerized to form the cell wall polysaccharide of many microorganisms.

[0004] Lysozyme has been classified into five different glycoside hydrolase (GH) families (CAZy, www.cazy.org): hen egg-white lysozyme (GH22), goose egg-white lysozyme (GH23), bacteriophage T4 lysozyme (GH24), Sphingomonas flagellar protein (GH73) and Chalaropsis lysozymes (GH25). Lysozymes from the families GH23 and GH24 are primarily known from bacteriophages and have only recently been identified in fungi. The lysozyme family GH25 has been found to be structurally unrelated to the other lysozyme families.

[0005] Lysozyme extracted from hen egg white is the primary product available on the commercial market, but does not cleave N,6-O-diacetylmuramic acid in e.g. Staphylococcus aureus cell walls and is thus unable to lyse this important human pathogen among others (Masschalck B, Deckers D, Michiels CW (2002), "Lytic and nonlytic mechanism of inactivation of gram-positive bacteria by lysozyme under atmospheric and high hydrostatic pressure", J Food Prot. 65(12):1916-23).

[0006] WO2012 / 035103 discloses variants of a GH22 lysozyme from the bird Opisthocomus hoazin. WO2013 / 076253 and WO2013 / 076259 disclose single domain GH24 and GH25 lysozymes for use in animal feed. GB2002780 discloses the use of a lysozyme in the prophylaxis treatment of chickens. The lysozyme used was the same as isolated by Flemming in 1922 which is a GH22 lysozyme from hen egg white.

[0007] CN101912048 discloses the use of a bacteriophage T4 lysozyme in animal feed. Bacteriophage T4 lysozymes do not comprise the same domain structure as the lysozymes of the present invention. CN103385366 discloses the use of a lysozyme (unknown type, but based on the activity assay most likely the GH22 lysozyme from hen egg white) for use in animal feed.

[0008] US 2014 / 325711 discloses polypeptides having lysozyme activity belonging to the GH25 family and having anitomicrobial activity.

[0009] US 2015 / 023945 discloses polypeptides having lysozyme activity from Opisthocomus hoazin for use as anti-microbial agents.

[0010] GB 2 002 780 discloses the prophylactic treatment of chickens using lysozyme phosphate.

[0011] WO 2017 / 001703 discloses GH25 enzymes from Trichophaea saccate for improving European production efficiency factor (EPEF) and / or feed conversion ratio (FCR) of monogastric animal comprises administering animal feed or animal feed additive comprising microbial lysozymes.

[0012] WO 2017 / 064092 discloses feed additive for aquatic animals comprising lysozymes and essential oils.

[0013] Antimicrobial growth promoters (AGP's) have traditionally been used for growth promotion in animals, and probably work by preventing low level infections by pathogens such as Clostridium perfringens. However, AGP's are increasingly being banned worldwide and therefore new solutions to promote animal growth but which are not AGP's are of interest. The object of the present invention is to provide new and effective solutions to this problem.Summary of the Invention

[0014] The present invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity wherein the polypeptide comprises one or more GH24 catalytic domains and one or more lysozyme enhancing domains and wherein: (a) GH24 catalytic domain gives a domT score of at least 200 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 1 to 122 and hmmbuild software program, and wherein the query is carried out using hmmscan software program with default settings; and (b) the polypeptide comprises one or more lysozyme enhancing domains, wherein the lysozyme enhancing domain gives a domT score of at least 100 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 123 to 251 and hmmbuild software program, and wherein the query is carried out using the hmmscan software program with default settings: wherein: (a) the GH24 catalytic domain comprises one or more motif I: [TAS][VIL][GAC][YFI]GHX[CAYIV] (SEQ ID NO: 252) and / or one or more motif II [LV][NDST]XN[QE][YFW][GASND]ALXS[WFLY]X[FY]N (SEQ ID NO: 253); and (b) the lysozyme enhancing domain comprises one or more motif III: [CGY][YF][VIL][ASTP][DG]X[YF][VIT]X[TS][GAN] (SEQ ID NO: 254), wherein the lysozyme enhancing domain has at least 85% sequence identity to SEQ ID NO: 180, wherein the GH24 catalytic domain has at least 85% sequence identity to SEQ ID NO:14, and wherein the polypeptide having lysozyme activity has at least 50% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB (Mueller-Hinton broth), pH 6.

[0015] The invention also relates to an animal feed comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257.

[0016] The invention also relates to an isolated polypeptide having lysozyme activity, wherein the polypeptide comprises one or more GH24 catalytic domains and one or more lysozyme enhancing domains and wherein: (a) GH24 catalytic domain gives a domT score of at least 200 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 1 to 122 and hmmbuild software program, and wherein the query is carried out using hmmscan software program with default settings; and (b) the polypeptide comprises one or more lysozyme enhancing domains, wherein the lysozyme enhancing domain gives a domT score of at least 100 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 123 to 251 and hmmbuild software program, and wherein the query is carried out using the hmmscan software program with default settings; wherein: (a) the GH24 catalytic domain comprises one or more motif I: [TAS][VIL][GAC][YFI]GHX[CAYIV] (SEQ ID NO: 252) and / or one or more motif II [LV][NDST]XN[QE][YFW][GASND]ALXS[WFLY]X[FY]N (SEQ ID NO: 253); and (b) the lysozyme enhancing domain comprises one or more motif III: [CGY][YF][VIL][ASTP][DG]X[YF][VIT]X[TS][GAN] (SEQ ID NO: 254), and wherein the polypeptides are selected from the group consisting of: (a) a polypeptide having at least 80%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257; (b) a polypeptide having at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267; (d) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294; (e) a polypeptide having at least 82%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297; (f) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300; (g) a polypeptide having at least 80%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303; (h) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306; (s) a variant of SEQ ID NO: 257, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 positions; and (t) a variant of SEQ ID NO: 267, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 positions; and (v) a variant of SEQ ID NO: 294, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 or 30 positions; (w) a variant of SEQ ID NO: 297, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6,7, 8, 9, 10, 11, 12, 13 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (x) a variant of SEQ ID NO: 300, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6,7, 8, 9, 10, 11, 12, 13 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (y) a variant of SEQ ID NO: 303, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (z) a variant of SEQ ID NO: 306, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8 9, 10, 11, 12, 13 14, 15, 16, 17, 18, 19, 20 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; and (aa) a fragment of the polypeptide of (a), (b), (d), (e), (f), (g), (h), (s), (t), (v), (w), (x), (y) or (z) that has lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids.

[0017] The invention further relates to an isolated polypeptide having lysozyme activity, having at least 85%, at least 86%, at least 87%, at least 88%. at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO:257.

[0018] The invention further relates to compositions comprising the lysozyme of the invention; use of the lysozyme of the invention in animal feed, in animal feed additives, in the preparation of a composition for use in animal feed, and for improving one or more performance parameters in an animalOverview of Sequence Listing

[0019] SEQ ID NO: 1 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A6R5W4 from Ajellomyces capsulatus. SEQ ID NO: 2 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A8PEU5 from Coprinopsis cinerea. SEQ ID NO: 3 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:Q0CMX2 from Aspergillus terreus. SEQ ID NO: 4 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:Q0D1K1 from Aspergillus terreus. SEQ ID NO: 5 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:Q2TXN3 from Aspergillus oryzae. SEQ ID NO: 6 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:Q2UFQ2 from Aspergillus oryzae. SEQ ID NO: 7 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:Q5B9R1 from Emericella nidulans. SEQ ID NO: 8 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:B0DQF7 from Laccaria bicolor. SEQ ID NO: 9 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:B8NGV0 from Aspergillus flavus. SEQ ID NO: 10 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:B8NVG8 from Aspergillus flavus. SEQ ID NO: 11 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C0NHY3 from Ajellomyces capsulatus. SEQ ID NO: 12 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C5FQ03 from Arthroderma otae. SEQ ID NO: 13 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C5FZ72 from Arthroderma otae. SEQ ID NO: 14 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C5GQK2 from Ajellomyces dermatitidis. SEQ ID NO: 15 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C6H5Y9 from Ajellomyces capsulatus. SEQ ID NO: 16 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:D4AT26 from Arthroderma benhamiae. SEQ ID NO: 17 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:D4CZH0 from Trichophyton verrucosum. SEQ ID NO: 18 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:D4DKV0 from Trichophyton verrucosum. SEQ ID NO: 19 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:E4UVW7 from Arthroderma gypseum. SEQ ID NO: 20 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:E4V546 from Arthroderma gypseum. SEQ ID NO: 21 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:G9N4L5 from Hypocrea virens. SEQ ID NO: 22 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:E9F1Z9 from Metarhizium robertsii. SEQ ID NO: 23 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F0UVK8 from Ajellomyces capsulatus. SEQ ID NO: 24 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F2RV71 from Trichophyton tonsurans. SEQ ID NO: 25 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F2PV65 from Trichophyton equinum. SEQ ID NO: 26 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F2SGL6 from Trichophyton rubrum. SEQ ID NO: 27 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F2SJH3 from Trichophyton rubrum. SEQ ID NO: 28 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:L7ZJC4 from Serratia marcescens. SEQ ID NO: 29 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:J5TH48 from Trichosporon asahii. SEQ ID NO: 30 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:J4UH35 from Trichosporon asahii. SEQ ID NO: 31 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:K1VMN5 from Trichosporon asahii. SEQ ID NO: 32 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:K1WL46 from Trichosporon asahii. SEQ ID NO: 33 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:U9T5J9 from Rhizophagus irregularis. SEQ ID NO: 34 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:U9TCU3 from Rhizophagus irregularis. SEQ ID NO: 35 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:U9UUS9 from Rhizophagus irregularis. SEQ ID NO: 36 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:R7Z482 from Coniosporium apollinis. SEQ ID NO: 37 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A015K1S5 from Rhizophagus irregularis. SEQ ID NO: 38 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W6PQ31 from Penicillium roqueforti. SEQ ID NO: 39 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A017SCH5 from Aspergillus ruber. SEQ ID NO: 40 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A022UIH6 from Trichophyton interdigitale. SEQ ID NO: 41 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A015LDX8 from Rhizophagus irregularis. SEQ ID NO: 42 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A015L2T0 from Rhizophagus irregularis. SEQ ID NO: 43 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A086NFK5 from Metarhizium anisopliae. SEQ ID NO: 44 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0A2V9H7 from Beauveria bassiana. SEQ ID NO: 45 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0A2WO20 from Beauveria bassiana. SEQ ID NO: 46 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0A2WS5I8 from Beauveria bassiana. SEQ ID NO: 47 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0B4HPE0 from Metarhizium guizhouense. SEQ ID NO: 48 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0B4HHE7 from Metarhizium majus. SEQ ID NO: 49 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0B4FYT8 from Metarhizium brunneum. SEQ ID NO: 50 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A8PEP0 from Coprinopsis cinerea. SEQ ID NO: 51 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A8PEP4 from Coprinopsis cinerea. SEQ ID NO: 52 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A8PEQ3 from Coprinopsis cinerea. SEQ ID NO: 53 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:B0DQI1 from Laccaria bicolor. SEQ ID NO: 54 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:B0DUH4 from Laccaria bicolor. SEQ ID NO: 55 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C7Z8WO from Nectria haematococca. SEQ ID NO: 56 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C7ZQ20 from Nectria haematococca. SEQ ID NO: 57 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:G0RP87 from Hypocrea jecorina. SEQ ID NO: 58 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A8PEQ1 from Coprinopsis cinerea. SEQ ID NO: 59 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:D6RMD2 from Coprinopsis cinerea. SEQ ID NO: 60 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:K9I708 from Agaricus bisporus. SEQ ID NO: 61 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:E9DUC1 from Metarhizium acridum. SEQ ID NO: 62 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:E9FAC9 from Metarhizium robertsii. SEQ ID NO: 63 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F9GF09 from Fusarium oxysporum. SEQ ID NO: 64 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A067NV59 from Pleurotus ostreatus. SEQ ID NO: 65 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A067NBT7 from Pleurotus ostreatus. SEQ ID NO: 66 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A067NLC3 from Pleurotus ostreatus. SEQ ID NO: 67 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A067TC70 from Galerina marginata. SEQ ID NO: 68 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A067T7N7 from Galerina marginata. SEQ ID NO: 69 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:K5VNL0 from Agaricus bisporus. SEQ ID NO: 70 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W9Z992 from Fusarium oxysporum. SEQ ID NO: 71 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W9ZZW9 from Fusarium oxysporum. SEQ ID NO: 72 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:X0A5V9 from Fusarium oxysporum. SEQ ID NO: 73 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:N4UD22 from Fusarium oxysporum. SEQ ID NO: 74 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:N4UKT7 from Fusarium oxysporum. SEQ ID NO: 75 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W9KX02 from Fusarium oxysporum. SEQ ID NO: 76 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:X0MM97 from Fusarium oxysporum. SEQ ID NO: 77 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W7N5Q6 from Gibberella moniliformis. SEQ ID NO: 78 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:X0BII8 from Fusarium oxysporum. SEQ ID NO: 79 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W9NXR4 from Fusarium oxysporum. SEQ ID NO: 80 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W9LDD0 from Fusarium oxysporum. SEQ ID NO: 81 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:W9HEM8 from Fusarium oxysporum. SEQ ID NO: 82 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:S0EPI6 from Gibberella fujikuroi. SEQ ID NO: 83 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:S3D2D9 from Glarea lozoyensis. SEQ ID NO: 84 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:R7Z235 from Coniosporium apollinis. SEQ ID NO: 85 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:U4LG64 from Pyronema omphalodes. SEQ ID NO: 86 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:U1HSJ9 from Endocarpon pusillum. SEQ ID NO: 87 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:U4LQS4 from Pyronema omphalodes. SEQ ID NO: 88 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:X0IVL1 from Fusarium oxysporum. SEQ ID NO: 89 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A086T9F0 from Acremonium chrysogenum. SEQ ID NO: 90 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A086NUM9 from Metarhizium anisopliae. SEQ ID NO: 91 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0A1TCW0 from Torrubiella hemipterigena. SEQ ID NO: 92 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A093ZCQ3 from Pseudogymnoascus pannorum. SEQ ID NO: 93 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0B4HLN8 from Metarhizium majus. SEQ ID NO: 94 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0B4H8G1 from Metarhizium guizhouense. SEQ ID NO: 95 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A4UCC9 from Magnaporthe oryzae. SEQ ID NO: 96 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:Q2GND9 from Chaetomium globosum. SEQ ID NO: 97 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C7Z967 from Nectria haematococca. SEQ ID NO: 98 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:C9SY46 from Verticillium alfalfae. SEQ ID NO: 99 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:G2RG69 from Thielavia terrestris. SEQ ID NO: 100 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:G2QNE9 from Thielavia heterothallica. SEQ ID NO: 101 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:J9NQV9 from Fusarium oxysporum. SEQ ID NO: 102 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:F9F2K4 from Fusarium oxysporum. SEQ ID NO: 103 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:G0RZV2 from Chaetomium thermophilum. SEQ ID NO: 104 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:G2XHC2 from Verticillium dahliae. SEQ ID NO: 105 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:N1RWA4 from Fusarium oxysporum. SEQ ID NO: 106 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:X0B4J3 from Fusarium oxysporum. SEQ ID NO: 107 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A084PYR3 from Stachybotrys chartarum. SEQ ID NO: 108 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A086TBZ4 from Acremonium chrysogenum. SEQ ID NO: 109 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A086SUF8 from Acremonium chrysogenum. SEQ ID NO: 110 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A084R326 from Stachybotrys chlorohalonata. SEQ ID NO: 111 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A093Z6Z8 from Pseudogymnoascus pannorum. SEQ ID NO: 112 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094IML3 from Pseudogymnoascus pannorum. SEQ ID NO: 113 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094GY79 from Pseudogymnoascus pannorum. SEQ ID NO: 114 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A093XPZ7 from Pseudogymnoascus pannorum. SEQ ID NO: 115 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A093XAS9 from Pseudogymnoascus pannorum. SEQ ID NO: 116 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A0A1TNV6 from Torrubiella hemipterigena. SEQ ID NO: 117 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094DVF4 from Pseudogymnoascus pannorum. SEQ ID NO: 118 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094IE25 from Pseudogymnoascus pannorum. SEQ ID NO: 119 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094HNM8 from Pseudogymnoascus pannorum. SEQ ID NO: 120 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094EPJ7 from Pseudogymnoascus pannorum. SEQ ID NO: 121 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A094BWD6 from Pseudogymnoascus pannorum. SEQ ID NO: 122 is the amino acid sequence of the GH24 catalytic domain of SWISSPROT:A0A093ZTZ8 from Pseudogymnoascus pannorum. SEQ ID NO: 123 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:B2ASY2 from Podospora anserina. SEQ ID NO: 124 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:B6GZX8 from Penicillium chrysogenum. SEQ ID NO: 125 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:C7ZQ22 from Nectria haematococca. SEQ ID NO: 126 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:E9DSA6 from Metarhizium acridum. SEQ ID NO: 127 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:E9F1Z9 from Metarhizium robertsii. SEQ ID NO: 128 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:E9FC42 from Metarhizium robertsii. SEQ ID NO: 129 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:F9F2K5 from Fusarium oxysporum. SEQ ID NO: 130 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:F9GF09 from Fusarium oxysporum. SEQ ID NO: 131 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2QV10 from Thielavia terrestris. SEQ ID NO: 132 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2QV26 from Thielavia terrestris. SEQ ID NO: 133 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:J5TH48 from Trichosporon asahii var. Asahii. SEQ ID NO: 134 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:J4UH35 from Trichosporon asahii var. Asahii. SEQ ID NO: 135 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:J9NQ28 from Fusarium oxysporum f. sp. Lycopersici. SEQ ID NO: 136 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:J9NQW0 from Fusarium oxysporum f. sp. Lycopersici. SEQ ID NO: 137 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:K1VMN5 from Trichosporon asahii var. Asahii. SEQ ID NO: 138 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:K1WL46 from Trichosporon asahii var. Asahii. SEQ ID NO: 139 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9Z045 from Fusarium oxysporum f. sp. Melonis. SEQ ID NO: 140 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:X0A5V9 from Fusarium oxysporum f. sp. Melonis. SEQ ID NO: 141 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:N1S551 from Fusarium oxysporum f. sp. Cubense. SEQ ID NO: 142 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:N4UD22 from Fusarium oxysporum f. sp. Cubense. SEQ ID NO: 143 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:N4UT47 from Fusarium oxysporum f. sp. Cubense. SEQ ID NO: 144 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9KWW4 from Fusarium oxysporum. SEQ ID NO: 145 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:X0MM97 from Fusarium oxysporum f. sp. Vasinfectum. SEQ ID NO: 146 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W7N5Q6 from Gibberella moniliformis. SEQ ID NO: 147 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:X0BE07 from Fusarium oxysporum f. sp. Raphani. SEQ ID NO: 148 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:X0BII8 from Fusarium oxysporum. SEQ ID NO: 149 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9NW59 from Fusarium oxysporum f. sp. Pisi. SEQ ID NO: 150 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9NXR4 from Fusarium oxysporum f. sp. Pisi. SEQ ID NO: 151 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:S7ZNE7 from Penicillium oxalicum. SEQ ID NO: 152 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:S7Z5Z6 from Penicillium oxalicum. SEQ ID NO: 153 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9LDD0 from Fusarium oxysporum f. sp. Lycopersici. SEQ ID NO: 154 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9HEM8 from Fusarium oxysporum. SEQ ID NO: 155 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9JDH4 from Fusarium oxysporum. SEQ ID NO: 156 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:S0EPI6 from Gibberella fujikuroi. SEQ ID NO: 157 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W6QNL2 from Penicillium roqueforti. SEQ ID NO: 158 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:U4LJD9 from Pyronema omphalodes. SEQ ID NO: 159 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:U4LG64 from Pyronema omphalodes. SEQ ID NO: 160 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094AK50 from Pseudogymnoascus pannorum. SEQ ID NO: 161 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9JIH2 from Fusarium oxysporum. SEQ ID NO: 162 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:X0FW82 from Fusarium oxysporum f. sp. radicis-lycopersici. SEQ ID NO: 163 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A086TBY7 from Acremonium chrysogenum. SEQ ID NO: 164 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A086T755 from Acremonium chrysogenum. SEQ ID NO: 165 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A086T4C8 from Acremonium chrysogenum. SEQ ID NO: 166 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A086NNR4 from Metarhizium anisopliae. SEQ ID NO: 167 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A086NFK5 from Metarhizium anisopliae. SEQ ID NO: 168 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094FY19 from Pseudogymnoascus pannorum. SEQ ID NO: 169 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094G1N0 from Pseudogymnoascus pannorum. SEQ ID NO: 170 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094GEA0 from Pseudogymnoascus pannorum. SEQ ID NO: 171 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094GJR5 from Pseudogymnoascus pannorum. SEQ ID NO: 172 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094G660 from Pseudogymnoascus pannorum. SEQ ID NO: 173 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093YBN4 from Pseudogymnoascus pannorum. SEQ ID NO: 174 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094FSZ5 from Pseudogymnoascus pannorum. SEQ ID NO: 175 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094FBW1 from Pseudogymnoascus pannorum. SEQ ID NO: 176 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094H0G2 from Pseudogymnoascus pannorum. SEQ ID NO: 177 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094H7M1 from Pseudogymnoascus pannorum. SEQ ID NO: 178 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093Y8W3 from Pseudogymnoascus pannorum. SEQ ID NO: 179 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094GYN9 from Pseudogymnoascus pannorum. SEQ ID NO: 180 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093XAD4 from Pseudogymnoascus pannorum. SEQ ID NO: 181 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094H7J6 from Pseudogymnoascus pannorum. SEQ ID NO: 182 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094E0I1 from Pseudogymnoascus pannorum. SEQ ID NO: 183 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094CC50 from Pseudogymnoascus pannorum. SEQ ID NO: 184 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A0941195 from Pseudogymnoascus pannorum. SEQ ID NO: 185 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094IAA0 from Pseudogymnoascus pannorum. SEQ ID NO: 186 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094IBC0 from Pseudogymnoascus pannorum. SEQ ID NO: 187 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094E946 from Pseudogymnoascus pannorum. SEQ ID NO: 188 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094A3A0 from Pseudogymnoascus pannorum. SEQ ID NO: 189 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A1C4L9 from Aspergillus clavatus. SEQ ID NO: 190 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A1CBV9 from Aspergillus clavatus. SEQ ID NO: 191 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A1DA80 from Neosartorya fischeri. SEQ ID NO: 192 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A1DBW2 from Neosartorya fischeri. SEQ ID NO: 193 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A1DDF2 from Neosartorya fischeri. SEQ ID NO: 194 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q0CED1 from Aspergillus terreus. SEQ ID NO: 195 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q0CED2 from Aspergillus terreus. SEQ ID NO: 196 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q0CV85 from Aspergillus terreus. SEQ ID NO: 197 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q2GND8 from Chaetomium globosum. SEQ ID NO: 198 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q2GND9 from Chaetomium globosum. SEQ ID NO: 199 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q2H6W7 from Chaetomium globosum. SEQ ID NO: 200 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q4WAY2 from Neosartorya fumigata. SEQ ID NO: 201 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q4WBR4 from Neosartorya fumigata. SEQ ID NO: 202 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:Q4WVY3 from Neosartorya fumigata. SEQ ID NO: 203 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:B6H9X5 from Penicillium chrysogenum. SEQ ID NO: 204 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:B6HR38 from Penicillium chrysogenum. SEQ ID NO: 205 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:C7Z8WO from Nectria haematococca. SEQ ID NO: 206 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:C7ZQ20 from Nectria haematococca. SEQ ID NO: 207 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G0RP87 from Hypocrea jecorina. SEQ ID NO: 208 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2RG69 from Thielavia terrestris. SEQ ID NO: 209 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2QNE9 from Thielavia heterothallica. SEQ ID NO: 210 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G0RM22 from Hypocrea jecorina. SEQ ID NO: 211 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G0SG36 from Chaetomium thermophilum var. Thermophilum. SEQ ID NO: 212 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G0RZV3 from Chaetomium thermophilum var. Thermophilum. SEQ ID NO: 213 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:J9NQV9 from Fusarium oxysporum f. sp. Lycopersici. SEQ ID NO: 214 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2QD02 from Thielavia heterothallica. SEQ ID NO: 215 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2QNF0 from Thielavia heterothallica. SEQ ID NO: 216 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G9MHR1 from Hypocrea virens. SEQ ID NO: 217 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:E9ELX9 from Metarhizium robertsii. SEQ ID NO: 218 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:F9F2K4 from Fusarium oxysporum. SEQ ID NO: 219 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G0RZV2 from Chaetomium thermophilum var. Thermophilum. SEQ ID NO: 220 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:G2RG70 from Thielavia terrestris. SEQ ID NO: 221 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9Z992 from Fusarium oxysporum f. sp. Melonis. SEQ ID NO: 222 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9ZZW9 from Fusarium oxysporum f. sp. Melonis. SEQ ID NO: 223 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9ZAE8 from Fusarium oxysporum f. sp. Melonis. SEQ ID NO: 224 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:N1RWA4 from Fusarium oxysporum f. sp. Cubense. SEQ ID NO: 225 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:N4UKT7 from Fusarium oxysporum f. sp. Cubense. SEQ ID NO: 226 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W9KX02 from Fusarium oxysporum. SEQ ID NO: 227 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:X0B4J3 from Fusarium oxysporum f. sp. Raphani. SEQ ID NO: 228 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W6QE02 from Penicillium roqueforti. SEQ ID NO: 229 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:W6R4X8 from Penicillium roqueforti. SEQ ID NO: 230 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A024S9B8 from Trichoderma reesei. SEQ ID NO: 231 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A086NN36 from Metarhizium anisopliae. SEQ ID NO: 232 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094GA03 from Pseudogymnoascus pannorum. SEQ ID NO: 233 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094C8U1 from Pseudogymnoascus pannorum. SEQ ID NO: 234 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093Z6Z8 from Pseudogymnoascus pannorum. SEQ ID NO: 235 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094IML3 from Pseudogymnoascus pannorum. SEQ ID NO: 236 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094GY79 from Pseudogymnoascus pannorum. SEQ ID NO: 237 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093XPZ7 from Pseudogymnoascus pannorum. SEQ ID NO: 238 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093XAS9 from Pseudogymnoascus pannorum. SEQ ID NO: 239 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094I8J6 from Pseudogymnoascus pannorum. SEQ ID NO: 240 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094FTL0 from Pseudogymnoascus pannorum. SEQ ID NO: 241 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094AT39 from Pseudogymnoascus pannorum. SEQ ID NO: 242 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093XSP5 from Pseudogymnoascus pannorum. SEQ ID NO: 243 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094BAE6 from Pseudogymnoascus pannorum. SEQ ID NO: 244 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094IE25 from Pseudogymnoascus pannorum. SEQ ID NO: 245 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094HNM8 from Pseudogymnoascus pannorum. SEQ ID NO: 246 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094ETJ5 from Pseudogymnoascus pannorum. SEQ ID NO: 247 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094EPJ7 from Pseudogymnoascus pannorum. SEQ ID NO: 248 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094E9WO from Pseudogymnoascus pannorum. SEQ ID NO: 249 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094BWD6 from Pseudogymnoascus pannorum. SEQ ID NO: 250 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A094BTS1 from Pseudogymnoascus pannorum. SEQ ID NO: 251 is the amino acid sequence of the lysozyme enhancing domain of SWISSPROT:A0A093ZTZ8 from Pseudogymnoascus pannorum. SEQ ID NO: 252 is conserved motif I [TAS][VIL][GAC][YFI]GHX[CAYIV]. SEQ ID NO: 253 is conserved motif II [LV][NDST]XN[QE][YFW][GASND]ALXS[WFLY]X[FY]N. SEQ ID NO: 254 is conserved motif III [CGY][YF][VIL][ASTP][DG]X[YF][VIT]X[TS][GAN]. SEQ ID NO: 255 is the cDNA sequence of the GH24 lysozyme as isolated from Trichophaea saccata. SEQ ID NO: 256 is the amino acid sequence as deduced from SEQ ID NO: 255. SEQ ID NO: 257 is the amino acid sequence of the mature GH24 lysozyme from Trichophaea saccata. SEQ ID NO: 258 is primer F-80470. SEQ ID NO: 259 is primer R-80470. SEQ ID NO: 260 is primer 8643. SEQ ID NO: 261 is primer 8654. SEQ ID NO: 262 is the cDNA sequence of the GH24 lysozyme as isolated from Chaetomium thermophilum. SEQ ID NO: 263 is the amino acid sequence as deduced from SEQ ID NO: 262. SEQ ID NO: 264 is the amino acid sequence of the mature GH24 lysozyme from Chaetomium thermophilum. SEQ ID NO: 265 is the DNA sequence of the GH24 lysozyme as isolated from Trichoderma harzianum. SEQ ID NO: 266 is the amino acid sequence as deduced from SEQ ID NO: 265. SEQ ID NO: 267 is the amino acid sequence of the mature GH24 lysozyme from Trichoderma harzianum. SEQ ID NO: 268 is the codon optimised DNA sequence of the GH24 catalytic domain from SEQ ID NO: 255 with QCVG-linker and Savinase signal peptide. SEQ ID NO: 269 is the amino acid sequence as deduced from SEQ ID NO: 268. SEQ ID NO: 270 is the amino acid sequence of the mature GH24 catalytic domain from Trichophaea saccata with QCVG-linker. SEQ ID NO: 271 is the DNA sequence of the lysozyme enhancing domain from SEQ ID NO: 255. SEQ ID NO: 272 is the amino acid sequence as deduced from SEQ ID NO: 271. SEQ ID NO: 273 is the amino acid sequence of the mature LED from Trichophaea saccata. SEQ ID NO: 274 is primer P348F9-R. SEQ ID NO: 275 is primer A00611-F. SEQ ID NO: 276 is primer A00611-R. SEQ ID NO: 277 is primer CBS14450-F. SEQ ID NO: 278 is primer CBS14450-R. SEQ ID NO: 279 is the amino acid sequence of the mature GH24 lysozyme from Acremonium alcalophilum corresponding to the mature sequence of SEQ ID NO: 4 of WO 2013 / 076259. SEQ ID NO: 280 is the amino acid sequence of the mature GH24 lysozyme from Acremonium alcalophilum corresponding to the mature sequence of SEQ ID NO: 6 of WO 2013 / 076259. SEQ ID NO: 281 is conserved motif I-B [TAS][VIL][GAC][YFI]GHX[CAYIV]. SEQ ID NO: 282 is conserved motif I-C T[VI]GYGHXC. SEQ ID NO: 283 is conserved motif II-B LNXN[QE][YFW][GA]ALXS[WFL]X[YF]N. SEQ ID NO: 284 is conserved motif III-B C[YF][Vl][AST]D[YKF][YF][VI]XTG. SEQ ID NO: 285 is conserved motif IV [GEV]LXXRRXXE. SEQ ID NO: 286 is conserved motif IV-B GLXXRRXXE. SEQ ID NO: 287 is the gene sequence of the GH24 lysozyme as isolated from Trichophaea minuta. SEQ ID NO: 288 is the amino acid sequence as deduced from SEQ ID NO: 287. SEQ ID NO: 289 is the codon optimised DNA sequence of SEQ ID NO: 287. SEQ ID NO: 290 is the amino acid sequence as deduced from SEQ ID NO: 287. SEQ ID NO: 291 is the amino acid sequence of the mature GH24 lysozyme from Trichophaea minuta. SEQ ID NO: 292 is the gene sequence of the GH24 lysozyme as isolated from Chaetomium sp. ZY287. SEQ ID NO: 293 is the amino acid sequence as deduced from SEQ ID NO: 292. SEQ ID NO: 294 is the amino acid sequence of the mature GH24 lysozyme from Chaetomium sp. ZY287. SEQ ID NO: 295 is the gene sequence of the GH24 lysozyme as isolated from Mortierella sp. ZY002. SEQ ID NO: 296 is the amino acid sequence as deduced from SEQ ID NO: 295. SEQ ID NO: 297 is the amino acid sequence of the mature GH24 lysozyme from Mortierella sp. ZY002. SEQ ID NO: 298 is the gene sequence of the GH24 lysozyme as isolated from Metarhizium sp. XZ2431. SEQ ID NO: 299 is the amino acid sequence as deduced from SEQ ID NO: 298. SEQ ID NO: 300 is the amino acid sequence of the mature GH24 lysozyme from Metarhizium sp. XZ2431. SEQ ID NO: 301 is the gene sequence of the GH24 lysozyme as isolated from Geomyces auratus. SEQ ID NO: 302 is the amino acid sequence as deduced from SEQ ID NO: 301. SEQ ID NO: 303 is the amino acid sequence of the mature GH24 lysozyme from Geomyces auratus. SEQ ID NO: 304 is the gene sequence of the GH24 lysozyme as isolated from Ilyonectria rufa. SEQ ID NO: 305 is the amino acid sequence as deduced from SEQ ID NO: 304. SEQ ID NO: 306 is the amino acid sequence of the mature GH24 lysozyme from Ilyonectria rufa. Definitions

[0020] 50% MHB, pH 6: The term "50% MHB, pH 6" means that the antimicrobial activity of the lysozyme was tested using an RDA plate wherein the media used was 1 / 2 Mueller-Hinton broth (MHB) (Sigma / Fluka, 90922) (i.e. adjusted to pH6 with 4M HCI and diluted 1:1 with water) with 1.5% agarose.

[0021] Allelic variant: The term "allelic variant" means any of two or more alternative forms of a gene occupying the same chromosomal locus. Allelic variation arises naturally through mutation, and may result in polymorphism within populations. Gene mutations can be silent (no change in the encoded polypeptide) or may encode polypeptides having altered amino acid sequences. An allelic variant of a polypeptide is a polypeptide encoded by an allelic variant of a gene.

[0022] Animal: The term "animal" refers to any animal except humans. Examples of animals are non-ruminants and ruminants. Ruminant animals include, for example, animals such as sheep, goats, cattle, e.g. beef cattle, cows, and young calves, deer, yank, camel, llama and kangaroo. Non-ruminant animals include monogastric animals, including but not limited to pigs or swine (including, but not limited to, piglets, growing pigs, and sows); poultry such as turkeys, ducks, quail, guinea fowl, geese, pigeons (including squabs) and chicken (including but not limited to broiler chickens (referred to herein as broiles), chicks, layer hens (referred to herein as layers)); horses (including but not limited to hotbloods, coldbloods and warm bloods) crustaceans (including but not limited to shrimps and prawns) and fish (including but not limited to amberjack, arapaima, barb, bass, bluefish, bocachico, bream, bullhead, cachama, carp, catfish, catla, chanos, char, cichlid, cobia, cod, crappie, dorada, drum, eel, goby, goldfish, gourami, grouper, guapote, halibut, java, labeo, lai, loach, mackerel, milkfish, mojarra, mudfish, mullet, paco, pearlspot, pejerrey, perch, pike, pompano, roach, salmon, sampa, sauger, sea bass, seabream, shiner, sleeper, snakehead, snapper, snook, sole, spinefoot, sturgeon, sunfish, sweetfish, tench, terror, tilapia, trout, tuna, turbot, vendace, walleye and whitefish).

[0023] Animal feed: The term "animal feed" refers to any compound, preparation, or mixture suitable for, or intended for intake by an animal. Animal feed for a monogastric animal typically comprises concentrates as well as vitamins, minerals, enzymes, direct fed microbial, amino acids and / or other feed ingredients (such as in a premix) whereas animal feed for ruminants generally comprises forage (including roughage and silage) and may further comprise concentrates as well as vitamins, minerals, enzymes direct fed microbial, amino acid and / or other feed ingredients (such as in a premix).

[0024] Antimicrobial activity: The term "antimicrobial activity" is defined herein as an activity that kills or inhibits the growth of microorganisms, such as, algae, archea, bacteria, fungi and / or protozoans. The antimicrobial activity can, for example, be bactericidal meaning the killing of bacteria or bacteriostatic meaning the prevention of bacterial growth. The antimicrobial activity can include catalyzing the hydrolysis of 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in a peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrins. Antimicrobial activity can also include the lysozyme binding to the surface of the microorganism and inhibiting its growth. The antimicrobial effect can also include the use of the lysozymes of the present invention for activation of bacterial autolysins, as an immunostimulator, by inhibiting or reducing bacterial toxins and by an opsonin effect.

[0025] For the purpose of the present invention, antimicrobial activity is determined according to the antimicrobial assay described in Example 12 ("Determination of antimicrobial activity"). Antimicrobial activity is determined if there is a clearing zone when using 50% Mueller-Hinton broth, pH 6. Preferably the diameter of the clearing zone is 4 mm or more.

[0026] Thus the term "antimicrobial activity of SEQ ID NO: x against Clostridium perfringens using the conditions 50% MHB, pH 6" mean that the polypeptide shows antimicrobial activity (i.e. clearing zone) against Clostridium perfringens DSM756 when the conditions 50% Mueller-Hinton broth, pH 6 are used, when the experiment is performed as described in example 12.

[0027] Body Weight Gain: The term "body weight gain" means an increase in live weight of an animal during a given period of time e.g. the increase in weight from day 1 to day 21.

[0028] cDNA: The term "cDNA" means a DNA molecule that can be prepared by reverse transcription from a mature, spliced, mRNA molecule obtained from a eukaryotic or prokaryotic cell. cDNA lacks intron sequences that may be present in the corresponding genomic DNA. The initial, primary RNA transcript is a precursor to mRNA that is processed through a series of steps, including splicing, before appearing as mature spliced mRNA.

[0029] Coding sequence: The term "coding sequence" means a polynucleotide, which directly specifies the amino acid sequence of a polypeptide. The boundaries of the coding sequence are generally determined by an open reading frame, which begins with a start codon such as ATG, GTG, or TTG and ends with a stop codon such as TAA, TAG, or TGA. The coding sequence may be a genomic DNA, cDNA, synthetic DNA, or a combination thereof.

[0030] Concentrates: The term "concentrates" means feed with high protein and energy concentrations, such as fish meal, molasses, oligosaccharides, sorghum, seeds and grains (either whole or prepared by crushing, milling, etc. from e.g. corn, oats, rye, barley, wheat), oilseed press cake (e.g. from cottonseed, safflower, sunflower, soybean (such as soybean meal), rapeseed / canola, peanut or groundnut), palm kernel cake, yeast derived material and distillers grains (such as wet distillers grains (WDS) and dried distillers grains with solubles (DDGS)).

[0031] Control sequences: The term "control sequences" means nucleic acid sequences necessary for expression of a polynucleotide encoding a mature polypeptide of the present invention. Each control sequence may be native (i.e., from the same gene) or foreign (i.e., from a different gene) to the polynucleotide encoding the polypeptide or native or foreign to each other. Such control sequences include, but are not limited to, a leader, polyadenylation sequence, propeptide sequence, promoter, signal peptide sequence, and transcription terminator. At a minimum, the control sequences include a promoter, and transcriptional and translational stop signals. The control sequences may be provided with linkers for the purpose of introducing specific restriction sites facilitating ligation of the control sequences with the coding region of the polynucleotide encoding a polypeptide.

[0032] domT score: The term "domT score" or domain score means the score for the best scoring domain when aligning the query sequence to the HMM.

[0033] European Production Efficacy Factor (EPEF): The "European Production Efficacy Factor" is a way of comparing the performance of animals. This single-figure facilitates comparison of performance within and among farms and can be used to assess environmental, climatic and managemental variables. The EPEF is calculated as [(liveability (%) x Liveweight (kg)) / (Age at depletion (days) x FCR)] x 100, wherein livability is the percentage of animals alive at slaughter, Liveweight is the average weight of the animals at slaughter, age of depletion is the age of the animals at slaughter and FCR is the feed conversion ratio at slaughter.

[0034] Expression: The term "expression" includes any step involved in the production of a polypeptide including, but not limited to, transcription, post-transcriptional modification, translation, post-translational modification, and secretion.

[0035] Expression vector: The term "expression vector" means a linear or circular DNA molecule that comprises a polynucleotide encoding a polypeptide and is operably linked to control sequences that provide for its expression.

[0036] Feed Conversion Ratio (FCR): FCR is a measure of an animal's efficiency in converting feed mass into increases of the desired output. Animals raised for meat - such as swine, poultry and fish - the output is the mass gained by the animal. Specifically FCR is calculated as feed intake divided by weight gain, all over a specified period. Improvement in FCR means reduction of the FCR value. A FCR improvement of 2% means that the FCR was reduced by 2%.

[0037] Feed efficiency: The term "feed efficiency" means the amount of weight gain per unit of feed when the animal is fed ad-libitum or a specified amount of food during a period of time. By "increased feed efficiency" it is meant that the use of a feed additive composition according the present invention in feed results in an increased weight gain per unit of feed intake compared with an animal fed without said feed additive composition being present.

[0038] Forage: The term "forage" as defined herein also includes roughage. Forage is fresh plant material such as hay and silage from forage plants, grass and other forage plants, seaweed, sprouted grains and legumes, or any combination thereof. Examples of forage plants are Alfalfa (lucerne), birdsfoot trefoil, brassica (e.g. kale, rapeseed (canola), rutabaga (swede), turnip), clover (e.g. alsike clover, red clover, subterranean clover, white clover), grass (e.g. Bermuda grass, brome, false oat grass, fescue, heath grass, meadow grasses, orchard grass, ryegrass, Timothy-grass), corn (maize), millet, barley, oats, rye, sorghum, soybeans and wheat and vegetables such as beets. Forage further includes crop residues from grain production (such as corn stover; straw from wheat, barley, oat, rye and other grains); residues from vegetables like beet tops; residues from oilseed production like stems and leaves form soy beans, rapeseed and other legumes; and fractions from the refining of grains for animal or human consumption or from fuel production or other industries.

[0039] Fragment: The term "fragment" means a polypeptide having one or more (e.g., several) amino acids absent from the amino and / or carboxyl terminus of a mature polypeptide or domain; wherein the fragment has lysozyme activity. In one aspect, a fragment contains at least 215 amino acid residues (e.g., amino acids 16 to 230 of SEQ ID NO: 257), at least 225 amino acid residues (e.g., amino acids 11 to 235 of SEQ ID NO: 257), or at least 235 amino acid residues (e.g., amino acids 6 to 240 of SEQ ID NO: 257). In another aspect, a fragment contains at least 215 amino acid residues (e.g., amino acids 16 to 230 of SEQ ID NO: 264), at least 225 amino acid residues (e.g., amino acids 11 to 235 of SEQ ID NO: 264), or at least 235 amino acid residues (e.g., amino acids 6 to 240 of SEQ ID NO: 264). In another aspect, a fragment contains at least 218 amino acid residues (e.g., amino acids 16 to 233 of SEQ ID NO: 267), at least 228 amino acid residues (e.g., amino acids 11 to 238 of SEQ ID NO: 267), or at least 238 amino acid residues (e.g., amino acids 6 to 243 of SEQ ID NO: 267).

[0040] In one aspect, the fragment comprises at least 90% of the length of the mature polypeptide, such as at least 220 amino acids of SEQ ID NO: 288, at least 220 amino acids of SEQ ID NO: 290, at least 220 amino acids of SEQ ID NO: 291, at least 224 amino acids of SEQ ID NO: 293, at least 224 amino acids of SEQ ID NO: 294, at least 220 amino acids of SEQ ID NO: 296, at least 220 amino acids of SEQ ID NO: 297, at least 222 amino acids of SEQ ID NO: 299, at least 222 amino acids of SEQ ID NO: 300, at least 225 amino acids of SEQ ID NO: 302, at least 225 amino acids of SEQ ID NO: 303, at least 216 amino acids of SEQ ID NO: 305 or at least 216 amino acids of SEQ ID NO: 306.

[0041] In another aspect, the fragment comprises at least 92% of the length of the mature polypeptide, such as at least 225 amino acids of SEQ ID NO: 288, at least 225 amino acids of SEQ ID NO: 290, at least 225 amino acids of SEQ ID NO: 291, at least 229 amino acids of SEQ ID NO: 293, at least 229 amino acids of SEQ ID NO: 294, at least 225 amino acids of SEQ ID NO: 296, at least 225 amino acids of SEQ ID NO: 297, at least 227 amino acids of SEQ ID NO: 299, at least 227 amino acids of SEQ ID NO: 300, at least 230 amino acids of SEQ ID NO: 302, at least 230 amino acids of SEQ ID NO: 303, at least 220 amino acids of SEQ ID NO: 305 or at least 220 amino acids of SEQ ID NO: 306.

[0042] In another aspect, the fragment comprises at least 94% of the length of the mature polypeptide, such as at least 230 amino acids of SEQ ID NO: 288, at least 230 amino acids of SEQ ID NO: 290, at least 230 amino acids of SEQ ID NO: 291, at least 234 amino acids of SEQ ID NO: 293, at least 234 amino acids of SEQ ID NO: 294, at least 230 amino acids of SEQ ID NO: 296, at least 230 amino acids of SEQ ID NO: 297, at least 232 amino acids of SEQ ID NO: 299, at least 232 amino acids of SEQ ID NO: 300, at least 235 amino acids of SEQ ID NO: 302, at least 235 amino acids of SEQ ID NO: 303, at least 225 amino acids of SEQ ID NO: 305 or at least 225 amino acids of SEQ ID NO: 306.

[0043] In another aspect, the fragment comprises at least 96% of the length of the mature polypeptide, such as at least 235 amino acids of SEQ ID NO: 288, at least 235 amino acids of SEQ ID NO: 290, at least 235 amino acids of SEQ ID NO: 291, at least 239 amino acids of SEQ ID NO: 293, at least 239 amino acids of SEQ ID NO: 294, at least 235 amino acids of SEQ ID NO: 296, at least 235 amino acids of SEQ ID NO: 297, at least 237 amino acids of SEQ ID NO: 299, at least 237 amino acids of SEQ ID NO: 300, at least 240 amino acids of SEQ ID NO: 302, at least 240 amino acids of SEQ ID NO: 303, at least 230 amino acids of SEQ ID NO: 305 or at least 230 amino acids of SEQ ID NO: 306.

[0044] In another aspect, the fragment comprises at least 98% of the length of the mature polypeptide, such as at least 240 amino acids of SEQ ID NO: 288, at least 240 amino acids of SEQ ID NO: 290, at least 240 amino acids of SEQ ID NO: 291, at least 244 amino acids of SEQ ID NO: 293, at least 244 amino acids of SEQ ID NO: 294, at least 240 amino acids of SEQ ID NO: 296, at least 240 amino acids of SEQ ID NO: 297, at least 242 amino acids of SEQ ID NO: 299, at least 242 amino acids of SEQ ID NO: 300, at least 245 amino acids of SEQ ID NO: 302, at least 245 amino acids of SEQ ID NO: 303, at least 235 amino acids of SEQ ID NO: 305 or at least 235 amino acids of SEQ ID NO: 306.

[0045] In another aspect, the fragment comprises at least 99% of the length of the mature polypeptide, such as at least 242 amino acids of SEQ ID NO: 288, at least 242 amino acids of SEQ ID NO: 290, at least 242 amino acids of SEQ ID NO: 291, at least 246 amino acids of SEQ ID NO: 293, at least 246 amino acids of SEQ ID NO: 294, at least 242 amino acids of SEQ ID NO: 296, at least 242 amino acids of SEQ ID NO: 297, at least 244 amino acids of SEQ ID NO: 299, at least 244 amino acids of SEQ ID NO: 300, at least 247 amino acids of SEQ ID NO: 302, at least 247 amino acids of SEQ ID NO: 303, at least 237 amino acids of SEQ ID NO: 305 or at least 237 amino acids of SEQ ID NO: 306.

[0046] hmmbuild: The term "hmmbuild" is a program from the package HMMER 3.0 (March 2010) (http: / / hmmer.org / ) that builds a profile HMM from an input multiple aligment.

[0047] hmmscan: The term "hmmscan" is a program from the package HMMER 3.0 (March 2010) (http: / / hmmer.org / ) that searches a protein sequence against a protein profile HMM database.

[0048] Host cell: The term "host cell" means any cell type that is susceptible to transformation, transfection, transduction, or the like with a nucleic acid construct or expression vector comprising a polynucleotide of the present invention. The term "host cell" encompasses any progeny of a parent cell that is not identical to the parent cell due to mutations that occur during replication.

[0049] Isolated: The term "isolated" means a substance in a form or environment that does not occur in nature. Non-limiting examples of isolated substances include (1) any non-naturally occurring substance, (2) any substance including, but not limited to, any enzyme, variant, nucleic acid, protein, peptide or cofactor, that is at least partially removed from one or more or all of the naturally occurring constituents with which it is associated in nature; (3) any substance modified by the hand of man relative to that substance found in nature; or (4) any substance modified by increasing the amount of the substance relative to other components with which it is naturally associated (e.g., recombinant production in a host cell; multiple copies of a gene encoding the substance; and use of a stronger promoter than the promoter naturally associated with the gene encoding the substance).

[0050] Lysozyme activity: The term "lysozyme activity" means the hydrolysis of the 1,4-beta-linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in a peptidoglycan or between N-acetyl-D-glucosamine residues in chitodextrins, resulting in bacteriolysis. Lysozyme belongs to the enzyme class EC 3.2.1.17. Lysozyme activity is typically measured by turbidimetric determination, such as the changes in turbidity of a suspension of Micrococcus luteus ATCC 4698 or Exiguobacterium undea (DSM14481) induced by the lytic action of the lysozyme. In appropriate experimental conditions these changes are proportional to the amount of lysozyme in the medium (c.f. INS 1105 of the Combined Compendium of Food Additive Specifications of the Food and Agriculture Organisation of the UN (www.fao.org)). For the purpose of the present invention, lysozyme activity is determined according to the turbidity assay described in example 11 ("Determination of Lysozyme Activity") and the polypeptidehas lysozyme activity if it shows activity against one or more bacteria, such as Micrococcus luteus ATCC 4698 and / or Exiguobacterium undea (DSM14481). The polypeptides of have at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, or at least 100% of the lysozyme activity of SEQ ID NO: 257. The polypeptides may have at least 20%, e.g., at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, or at least 100% of the lysozyme activity of SEQ ID NO: 264.

[0051] The polypeptides may have at least 20%, e.g., at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, or at least 100% of the lysozyme activity of SEQ ID NO: 267.

[0052] Mature polypeptide: The term "mature polypeptide" means a polypeptide in its final form following translation and any post-translational modifications, such as N-terminal processing, C-terminal truncation, glycosylation, phosphorylation, etc. In one aspect, the mature polypeptide amino acids 1 to 245 of SEQ ID NO: 257 based on EDMAN N-terminal sequencing data, intact molecular weight analysis and proteomic analysis. In another aspect, the mature polypeptide amino acids 1 to 245 of SEQ ID NO: 264. In another aspect, the mature polypeptide amino acids 1 to 248 of SEQ ID NO: 267.

[0053] In one aspect, the mature polypeptide is amino acids 1 to 245 of SEQ ID NO: 288 and amino acids -17 to -1 of SEQ ID NO: 288 are a signal peptide. In another aspect, the mature polypeptide is amino acids 1 to 245 of SEQ ID NO: 290. In an alternative aspect, the mature polypeptide is amino acids 1 to 245 of SEQ ID NO: 291.

[0054] In one aspect, the mature polypeptide is amino acids 1 to 249 of SEQ ID NO: 293 and amino acids -18 to -1 of SEQ ID NO: 293 are a signal peptide. In an alternative aspect, the mature polypeptide is amino acids 1 to 249 of SEQ ID NO: 294.

[0055] In one aspect, the mature polypeptide is amino acids 1 to 245 of SEQ ID NO: 296 and amino acids -19 to -1 of SEQ ID NO: 296 are a signal peptide. In an alternative aspect, the mature polypeptide is amino acids 1 to 245 of SEQ ID NO: 297.

[0056] In one aspect, the mature polypeptide is amino acids 1 to 247 of SEQ ID NO: 299 and amino acids -19 to -1 of SEQ ID NO: 299 are a signal peptide. In an alternative aspect, the mature polypeptide is amino acids 1 to 247 of SEQ ID NO: 300.

[0057] In one aspect, the mature polypeptide is amino acids 1 to 250 of SEQ ID NO: 302 and amino acids -18 to -1 of SEQ ID NO: 302 are a signal peptide. In an alternative aspect, the mature polypeptide is amino acids 1 to 250 of SEQ ID NO: 303.

[0058] In one aspect, the mature polypeptide is amino acids 1 to 240 of SEQ ID NO: 305 and amino acids -18 to -1 of SEQ ID NO: 305 are a signal peptide. In an alternative aspect, the mature polypeptide is amino acids 1 to 240 of SEQ ID NO: 306.

[0059] It is known in the art that a host cell may produce a mixture of two of more different mature polypeptides (i.e., with a different C-terminal and / or N-terminal amino acid) expressed by the same polynucleotide. It is also known in the art that different host cells process polypeptides differently, and thus, one host cell expressing a polynucleotide may produce a different mature polypeptide (e.g., having a different C-terminal and / or N-terminal amino acid) as compared to another host cell expressing the same polynucleotide.

[0060] Mature polypeptide coding sequence: The term "mature polypeptide coding sequence" means a polynucleotide that encodes a mature polypeptide having lysozyme activity. In one aspect, the mature polypeptide coding sequence is the joined sequence of nucleotides 52 to 347, nucleotides 401 to 615, nucleotides 668 to 772 and nucleotides 825 to 943 of SEQ ID NO: 255 or the cDNA sequence thereof and nucleotides 1 to 51 of SEQ ID NO: 255 are the signal peptide. In another aspect, the mature polypeptide coding sequence is the joined sequence of nucleotides 55 to 367, nucleotides 425 to 555 and nucleotides 630 to 920 of SEQ ID NO: 262 or the cDNA sequence thereof and nucleotides 1 to 54 of SEQ ID NO: 262 are the signal peptide. In another aspect, the mature polypeptide coding sequence is nucleotides 55 to 798 of SEQ ID NO: 265 and nucleotides 1 to 54 of SEQ ID NO: 265 are the signal peptide.

[0061] Nucleic acid construct: The term "nucleic acid construct" means a nucleic acid molecule, either single- or double-stranded, which is isolated from a naturally occurring gene or is modified to contain segments of nucleic acids in a manner that would not otherwise exist in nature or which is synthetic, which comprises one or more control sequences.

[0062] Obtained or obtainable from: The term "obtained or obtainable from" means that the polypeptide may be found in an organism from a specific taxonomic rank. In one embodiment, the polypeptide is obtained or obtainable from the kingdom Fungi, wherein the term kingdom is the taxonomic rank. In a preferred embodiment, the polypeptide is obtained or obtainable from the phylum Ascomycota, wherein the term phylum is the taxonomic rank. In another preferred embodiment, the polypeptide is obtained or obtainable from the subphylum Pezizomycotina, wherein the term subphylum is the taxonomic rank.

[0063] If the taxonomic rank of a polypeptide is not known, it can easily be determined by a person skilled in the art by performing a BLASTP search of the polypeptide (using e.g. the National Center for Biotechnology Information (NCIB) website http: / / www.ncbi.nlm.nih.gov / ) and comparing it to the closest homologues. An unknown polypeptide which is a fragment of a known polypeptide is considered to be of the same taxonomic species. An unknown natural polypeptide or artificial variant which comprises a substitution, deletion and / or insertion in up to 10 positions is considered to be from the same taxonomic species as the known polypeptide.

[0064] Operably linked: The term "operably linked" means a configuration in which a control sequence is placed at an appropriate position relative to the coding sequence of a polynucleotide such that the control sequence directs expression of the coding sequence.

[0065] Profile Hidden Markov Model: "Profile Hidden Markov Model" are statistical models of multiple sequence alignments. They capture position-specific information about how conserved each column of the alignment is, and which residues are likely (see ftp: / / ftp.hgc.jp / pub / mirror / wustl / hmmer3 / 3.1b1 / Userguide.pdf).

[0066] Roughage: The term "roughage" means dry plant material with high levels of fiber, such as fiber, bran, husks from seeds and grains and crop residues (such as stover, copra, straw, chaff, sugar beet waste).

[0067] Sequence identity: The relatedness between two amino acid sequences or between two nucleotide sequences is described by the parameter "sequence identity".

[0068] For purposes of the present invention, the sequence identity between two amino acid sequences is determined using the Needleman-Wunsch algorithm (Needleman and Wunsch, 1970, J. Mol. Biol. 48: 443-453) as implemented in the Needle program of the EMBOSS package (EMBOSS: The European Molecular Biology Open Software Suite, Rice et al., 2000, Trends Genet. 16: 276-277), preferably version 5.0.0 or later. The parameters used are gap open penalty of 10, gap extension penalty of 0.5, and the EBLOSUM62 (EMBOSS version of BLOSUM62) substitution matrix. The output of Needle labelled "longest identity" (obtained using the -nobrief option) is used as the percent identity and is calculated as follows:(Identical Residues x 100) / (Length of Alignment - Total Number of Gaps in Alignment)

[0069] For purposes of the present invention, the sequence identity between two deoxyribonucleotide sequences is determined using the Needleman-Wunsch algorithm (Needleman and Wunsch, 1970, supra) as implemented in the Needle program of the EMBOSS package (EMBOSS: The European Molecular Biology Open Software Suite, Rice et al., 2000, supra), preferably version 5.0.0 or later. The parameters used are gap open penalty of 10, gap extension penalty of 0.5, and the EDNAFULL (EMBOSS version of NCBI NUC4.4) substitution matrix. The output of Needle labelled "longest identity" (obtained using the -nobrief option) is used as the percent identity and is calculated as follows:

[0070] Stringency conditions: The different stringency conditions are defined as follows.

[0071] The term "very low stringency conditions" means for probes of at least 100 nucleotides in length, prehybridization and hybridization at 42°C in 5X SSPE, 0.3% SDS, 200 micrograms / ml sheared and denatured salmon sperm DNA, and 25% formamide, following standard Southern blotting procedures for 12 to 24 hours. The carrier material is finally washed three times each for 15 minutes using 0.8X SSC, 0.2% SDS at 55°C.

[0072] The term "low stringency conditions" means for probes of at least 100 nucleotides in length, prehybridization and hybridization at 42°C in 5X SSPE, 0.3% SDS, 200 micrograms / ml sheared and denatured salmon sperm DNA, and 25% formamide, following standard Southern blotting procedures for 12 to 24 hours. The carrier material is finally washed three times each for 15 minutes using 0.8X SSC, 0.2% SDS at 60°C.

[0073] The term "medium stringency conditions" means for probes of at least 100 nucleotides in length, prehybridization and hybridization at 42°C in 5X SSPE, 0.3% SDS, 200 micrograms / ml sheared and denatured salmon sperm DNA, and 35% formamide, following standard Southern blotting procedures for 12 to 24 hours. The carrier material is finally washed three times each for 15 minutes using 0.8X SSC, 0.2% SDS at 65°C.

[0074] The term "medium-high stringency conditions" means for probes of at least 100 nucleotides in length, prehybridization and hybridization at 42°C in 5X SSPE, 0.3% SDS, 200 micrograms / ml sheared and denatured salmon sperm DNA, and 35% formamide, following standard Southern blotting procedures for 12 to 24 hours. The carrier material is finally washed three times each for 15 minutes using 0.8X SSC, 0.2% SDS at 70°C.

[0075] The term "high stringency conditions" means for probes of at least 100 nucleotides in length, prehybridization and hybridization at 42°C in 5X SSPE, 0.3% SDS, 200 micrograms / ml sheared and denatured salmon sperm DNA, and 50% formamide, following standard Southern blotting procedures for 12 to 24 hours. The carrier material is finally washed three times each for 15 minutes using 0.4X SSC, 0.2% SDS at 70°C.

[0076] The term "very high stringency conditions" means for probes of at least 100 nucleotides in length, prehybridization and hybridization at 42°C in 5X SSPE, 0.3% SDS, 200 micrograms / ml sheared and denatured salmon sperm DNA, and 50% formamide, following standard Southern blotting procedures for 12 to 24 hours. The carrier material is finally washed three times each for 15 minutes using 0.4X SSC, 0.2% SDS at 75°C.

[0077] Subsequence: The term "subsequence" means a polynucleotide having one or more (e.g., several) nucleotides absent from the 5' and / or 3' end of a mature polypeptide coding sequence; wherein the subsequence encodes a fragment having lysozyme activity. In one aspect, a subsequence contains at least 645 nucleotides (e.g., the joined sequence of nucleotides 97 to 347, nucleotides 401 to 615, nucleotides 668 to 772 and nucleotides 825 to 898 of SEQ ID NO: 255 or the cDNA sequence thereof), at least 675 nucleotides (e.g., the joined sequence of nucleotides 82 to 347, nucleotides 401 to 615, nucleotides 668 to 772 and nucleotides 825 to 913 of SEQ ID NO: 255 or the cDNA sequence thereof), or at least 705 nucleotides (e.g., the joined sequence of nucleotides 67 to 347, nucleotides 401 to 615, nucleotides 668 to 772 and nucleotides 825 to 928 of SEQ ID NO: 255 or the cDNA sequence thereof).

[0078] Substantially pure polypeptide: The term "substantially pure polypeptide" means a preparation that contains at most 10%, at most 8%, at most 6%, at most 5%, at most 4%, at most 3%, at most 2%, at most 1%, and at most 0.5% by weight of other polypeptide material with which it is natively or recombinantly associated. Preferably, the polypeptide is at least 92% pure, e.g., at least 94% pure, at least 95% pure, at least 96% pure, at least 97% pure, at least 98% pure, at least 99%, at least 99.5% pure, and 100% pure by weight of the total polypeptide material present in the preparation. The polypeptides of the present invention are preferably in a substantially pure form. This can be accomplished, for example, by preparing the polypeptide by well known recombinant methods or by classical purification methods.

[0079] Variant: The term "variant" means a polypeptide having lysozyme activity comprising an alteration, i.e., a substitution, insertion, and / or deletion, of one or more (several) amino acid residues at one or more (e.g., several) positions. A substitution means replacement of the amino acid occupying a position with a different amino acid; a deletion means removal of the amino acid occupying a position; and an insertion means adding 1, 2, or 3 amino acids adjacent to and immediately following the amino acid occupying the position.

[0080] A lysozyme variant according to the invention is as defined in the appended claims.Nomenclature

[0081] For purposes of the present invention, the nomenclature [E / Q] means that the amino acid at this position may be a glutamic acid (Glu, E) or a glutamine (Gln, Q). Likewise the nomenclature [V / G / A / I] means that the amino acid at this position may be a valine (Val, V), glycine (Gly, G), alanine (Ala, A) or isoleucine (Ile, I), and so forth for other combinations as described herein. Unless otherwise limited further, the amino acid X is defined such that it may be any of the 20 natural amino acids.Detailed Description of the Invention Animal Feed and Animal Feed Additives Comprising Polypeptides Having Lysozyme Activity

[0082] The inventors have discovered that some polypeptides that comprise one or more Glycosyl Hydrolase family 24 (GH24) catalytic domains also comprise sections of polypeptide which until now has not been known to have any function and have therefore not been annotated. The inventors have herein annotated these sections of polypeptide, which is referred to herein as a lysozyme enhancing domain (LED), and have surprisingly discovered that this lysozyme enhancing domain significantly enhances antimicrobial activity against Clostridium perfringens.

[0083] For example, the polypeptide of SEQ ID NO: 257 which comprises a GH24 domain and a lysozyme enhancing domain has significant activity against Clostridium perfringens (see table 3 of example 12). However, when the polypeptide is expressed without the lysozyme enhancing domain being present (SEQ ID NO: 270), there is no activity against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0084] Two other polypeptides comprising a GH24 domain and a lysozyme enhancing domain (SEQ ID NO: 264 and 267) also have significant activity against Clostridium perfringens (see table 3) using the conditions 50% MHB, pH 6. However, two known GH24 lysozymes (SEQ ID NO: 279 and SEQ ID NO: 280) which do not comprise a lysozyme enhancing domain do not have any activity against Clostridium perfringens.

[0085] The inventors have also discovered that the LED protein (SEQ ID NO: 273) binds to M. lysodiektikus cells under the buffer conditions tested while crystalline cellulose did not bind the LED protein. This demonstrates that the LED protein is an important feature of the lysozymes of the invention and possibly explains why said lysozymes are more active against Clostridium perfringens under the tested conditions compared to GH24 lysozymes lacking the LED.

[0086] Thus in one aspect, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, as defined in the appended

[0087] In another aspect, the present dislosure relates to a pelleted animal feed comprising plant based material and one or more polypeptides as defined by the appended claims.

[0088] The theory behind Profile HMMs as described in Durbin et al. (Biological sequence analysis: probabilistic models of proteins and nucleic acids, Cambridge University Press, 1998) and Krogh et al. (1994 J. Mol. Biol. 235:1501- 1531), both incorporated herein by reference, is characterization of a set of proteins based on the probability of each amino acid occurring at each position in the alignment of the proteins of the set.

[0089] Specifically, profile HMMs are statistical models of multiple sequence alignments, or even of single sequences. They capture position-specific information about how conserved each column of the alignment is, and which residues are likely. All profile methods are more or less statistical descriptions of the consensus of a multiple sequence alignment. They use position-specific scores for amino acids or nucleotides (residues) and position specific penalties for opening and extending an insertion or deletion. Traditional pairwise alignment (for example, BLAST, FASTA or the Smith / Waterman algorithm) uses position-independent scoring parameters. This property of profiles captures important information about the degree of conservation at various positions in the multiple alignment, and the varying degree to which gaps and insertions are permitted.

[0090] The advantage of using HMMs is that HMMs have a formal probabilistic basis. Probability theory is used to guide how all the scoring parameters should be set. One of the most important aspect is that HMMs have a consistent theory for setting position-specific gap and insertion scores. The methods are consistent and therefore highly automatable, allowing hundreds of profile HMMs to be applied to e.g. whole genome analysis. An example of a protein domain model database is Pfam (Sonnhammer et al., 1997, 'A comprehensive database of protein families based on seed alignments', Proteins, 28:405-420; Finn et al., 2010, 'The Pfam protein families database', Nucl. Acids Res., 38:D211-D222), which is a significant part of the Interpro protein domain annotation system. The construction and use of Pfam is tightly tied to the HMMER software package (see https: / / en.wikipedia.org / wiki / HMMER).

[0091] The GH24 domain is defined in the following manner. SEQ ID NOs: 1 to 122, which are partial sequences of the Uniprot entries as explained in the 'overview of sequence listing' section herein, are aligned using the software program MUSCLE v3.8.31 with the default settings. Using this alignment, a hidden Markov model (HMM) is built for the GH24 domain. The HMM is constructed using the software program 'hmmbuild' from the package HMMER 3.0 (March 2010) (http: / / hmmer.org / ) and the software is invoked using the default settings.

[0092] A GH24 domain is defined to match the above mentioned HMM using the software program 'hmmscan' from the package HMMER 3.0 (March 2010) (http: / / hmmer.org / ) using the default settings if the domT score is at least 200. In a preferred embodiment, the domT score is at least 220, preferably at least 230, more preferably at least 240, even more preferably at least 250, even more preferably at least 255, or most preferably at least 260.

[0093] The HMM profile of the GH24 domain as generated using SEQ ID NOs: 1 to 122 according to the procedure above is given in example 15. The HMM profile can be copied into a text file which is subsequently loaded into the software program 'hmmscan' so that other polypeptides can be tested to see whether said polypeptide comprises one or more GH24 catalytic domains.

[0094] The Lysozyme Enhancing Domain (LED) is defined in the following manner. SEQ ID NOs: 123 to 251, which are partial sequences of the Uniprot entries as explained in the 'overview of sequence listing' section herein, are aligned using the software program MUSCLE v3.8.31 with the default settings. Using this alignment, a hidden Markov model (HMM) is built for the LED. The HMM is constructed using the software program 'hmmbuild' from the package HMMER 3.0 (March 2010) (http: / / hmmer.org / ) and the software is invoked using the default settings.

[0095] A LED is defined to match the above mentioned HMM using the software program 'hmmscan' from the package HMMER 3.0 (March 2010) (http: / / hmmer.org / ) using the default settings if the domT score is at least 100. In a preferred embodiment, the domT score is at least 103, preferably at least 106, more preferably at least 109, more preferably at least 112, more preferably at least 115, more preferably at least 118, even more preferably at least 121, or most preferably at least 124.

[0096] The HMM profile of the LED as generated using SEQ ID NOs: 123 to 251 according to the procedure above is given in example 16. The HMM profile can be copied into a text file which is subsequently loaded into the software program 'hmmscan' so that other polypeptides can be tested to see whether said polypeptide comprises one or more LED.

[0097] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 100. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 100. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 100. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 100.

[0098] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 103. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 103. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 103. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 103.

[0099] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 106. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 106. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 106. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 106.

[0100] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 109. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 109. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 109. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 109.

[0101] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 112. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 112. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 112. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 112.

[0102] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 115. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 115. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 115. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 115.

[0103] In an embodiment, the GH24 catalytic domain gives a domT score of at least 220 and the lysozyme enhancing domain gives a domT score of at least 118. In an embodiment, the GH24 catalytic domain gives a domT score of at least 230 and the lysozyme enhancing domain gives a domT score of at least 118. In an embodiment, the GH24 catalytic domain gives a domT score of at least 240 and the lysozyme enhancing domain gives a domT score of at least 118. In an embodiment, the GH24 catalytic domain gives a domT score of at least 250 and the lysozyme enhancing domain gives a domT score of at least 118.

[0104] In an embodiment, the polypeptide having lysozyme activity is obtained or obtainable from the kingdom Fungi, preferably from the phylum Ascomycota.

[0105] In an embodiment, the polypeptide having lysozyme activity has at least 50% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6. In an embodiment, the polypeptide having lysozyme activity has at least 60% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0106] In an embodiment, the polypeptide having lysozyme activity has at least 70% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6. In an embodiment, the polypeptide having lysozyme activity has at least 75% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6. In an embodiment, the polypeptide having lysozyme activity has at least 80% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0107] In an embodiment, the polypeptide having lysozyme activity has at least 85% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6. In an embodiment, the polypeptide having lysozyme activity has at least 90% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6. In an embodiment, the polypeptide having lysozyme activity has at least 95% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6. In an embodiment, the polypeptide having lysozyme activity has at least 100% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0108] In one aspect, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity as defined in the appended claims.

[0109] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257.

[0110] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257 and at least 70% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0111] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257 and at least 80% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0112] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257 and at least 90% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0113] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257 and at least 95% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0114] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257 and at least 100% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0115] In a further embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 257. In an embodiment, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0116] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 257 or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 245 of SEQ ID NO: 257 and has lysozyme activity.

[0117] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 264.

[0118] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 264 and at least 70% of the antimicrobial activity of SEQ ID NO: 264 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0119] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 264 and at least 80% of the antimicrobial activity of SEQ ID NO: 264 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0120] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 264 and at least 90% of the antimicrobial activity of SEQ ID NO: 264 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0121] Herein disclosed but not encompassed bv the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 264 and at least 95% of the antimicrobial activity of SEQ ID NO: 264 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0122] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 264 and at least 100% of the antimicrobial activity of SEQ ID NO: 264 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0123] Herein disclosed but not encompassed by the wording of the claims is animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 264. In this disclosure, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 264 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0124] Herein disclosed but not encompassed by the wording of the claims is that the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 264 or an allelic variant thereof having lysozyme activity; comprises or consists of the amino acid sequence of SEQ ID NO: 264 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In this disclosure, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 245 of SEQ ID NO: 264 and has lysozyme activity.

[0125] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267.

[0126] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267 and at least 70% of the antimicrobial activity of SEQ ID NO: 267 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0127] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267 and at least 80% of the antimicrobial activity of SEQ ID NO: 267 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0128] The animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267 and at least 90% of the antimicrobial activity of SEQ ID NO: 267 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0129] The animal feed or animal feed additive may compriseing one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267 and at least 95% of the antimicrobial activity of SEQ ID NO: 267 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0130] The animal feed or animal feed additive may comprise one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267 and at least 100% of the antimicrobial activity of SEQ ID NO: 267 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0131] Herein disclosed but not encompassed by the wording of the claims is than an the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 267. In an embodiment, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 267 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0132] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 267 ; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 248 of SEQ ID NO: 267 and has lysozyme activity.

[0133] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 291.

[0134] Herein disclosed but not encompassed by the wording of the claims is embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 291 and at least 70% of the antimicrobial activity of SEQ ID NO: 291 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0135] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 291 and at least 80% of the antimicrobial activity of SEQ ID NO: 291 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0136] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 291 and at least 90% of the antimicrobial activity of SEQ ID NO: 291 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0137] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 291 and at least 95% of the antimicrobial activity of SEQ ID NO: 291 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0138] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 291 and at least 100% of the antimicrobial activity of SEQ ID NO: 291 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0139] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 291. In disclosure, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 291 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0140] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 291 or an allelic variant thereof having lysozyme activity; comprises or consists of the amino acid sequence of SEQ ID NO: 291 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In this disclosure, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 245 of SEQ ID NO: 291 and has lysozyme activity.

[0141] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294.

[0142] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294 and at least 70% of the antimicrobial activity of SEQ ID NO: 294 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0143] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294 and at least 80% of the antimicrobial activity of SEQ ID NO: 294 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0144] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294 and at least 90% of the antimicrobial activity of SEQ ID NO: 294 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0145] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294 and at least 95% of the antimicrobial activity of SEQ ID NO: 294 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0146] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294 and at least 100% of the antimicrobial activity of SEQ ID NO: 294 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0147] Herein disclosed but not encompassed by the wording of the claims is an a further animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 294. In this disclosure, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 294 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0148] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 294 or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 245 of SEQ ID NO: 294 and has lysozyme activity.

[0149] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297.

[0150] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297 and at least 70% of the antimicrobial activity of SEQ ID NO: 297 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0151] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297 and at least 80% of the antimicrobial activity of SEQ ID NO: 297 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0152] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297 and at least 90% of the antimicrobial activity of SEQ ID NO: 297 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0153] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297 and at least 95% of the antimicrobial activity of SEQ ID NO: 297 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0154] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297 and at least 100% of the antimicrobial activity of SEQ ID NO: 297 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0155] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 297. In an embodiment, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 297 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0156] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 297 or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 249 of SEQ ID NO: 297 and has lysozyme activity.

[0157] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300.

[0158] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300 and at least 70% of the antimicrobial activity of SEQ ID NO: 300 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0159] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300 and at least 80% of the antimicrobial activity of SEQ ID NO: 300 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0160] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300 and at least 90% of the antimicrobial activity of SEQ ID NO: 300 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0161] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300 and at least 95% of the antimicrobial activity of SEQ ID NO: 300 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0162] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300 and at least 100% of the antimicrobial activity of SEQ ID NO: 300 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0163] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 300. In an embodiment, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 300 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0164] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 300 or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 247 of SEQ ID NO: 300 and has lysozyme activity.

[0165] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303.

[0166] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303 and at least 70% of the antimicrobial activity of SEQ ID NO: 303 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0167] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303 and at least 80% of the antimicrobial activity of SEQ ID NO: 303 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0168] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303 and at least 90% of the antimicrobial activity of SEQ ID NO: 303 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0169] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303 and at least 95% of the antimicrobial activity of SEQ ID NO: 303 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0170] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303 and at least 100% of the antimicrobial activity of SEQ ID NO: 303 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0171] In a further embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 303. In an embodiment, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 303 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0172] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 303 or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 250 of SEQ ID NO: 303 and has lysozyme activity.

[0173] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306.

[0174] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306 and at least 70% of the antimicrobial activity of SEQ ID NO: 306 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0175] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306 and at least 80% of the antimicrobial activity of SEQ ID NO: 306 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0176] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306 and at least 90% of the antimicrobial activity of SEQ ID NO: 306 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0177] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306 and at least 95% of the antimicrobial activity of SEQ ID NO: 306 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0178] In a further embodiment, the invention relates to an animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306 and at least 100% of the antimicrobial activity of SEQ ID NO: 306 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0179] Herein disclosed but not encompassed by the wording of the claims is an animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity differs by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 306. In an embodiment, the polypeptide has at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the antimicrobial activity of SEQ ID NO: 306 against Clostridium perfringens using the conditions 50% MHB, pH 6.

[0180] In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of the amino acid sequence of SEQ ID NO: 306 or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In a preferred embodiment, the animal feed or animal feed additive comprises one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity comprising or consists of amino acids 1 to 240 of SEQ ID NO: 306 and has lysozyme activity.

[0181] Herein disclosed but not encompassed by the wording of the claims are further polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 256 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 256. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 256.

[0182] Herein disclosed but not encompassed by the wording of the claims is that the amino acid sequence of SEQ ID NO: 256 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 256 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 256. In another aspect, the polypeptide comprises or consists of amino acids 1 to 245 of SEQ ID NO: 256.

[0183] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 255, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0184] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 255 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0185] In another embodiment, the present invention relates to variants of the mature polypeptide of SEQ ID NO: 257 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 257 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 257 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 257 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 257 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 257 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 257 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 257.

[0186] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 266 of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 12 amino acids, e.g., between 1 and 12 amino acids, such as 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 amino acids from the mature polypeptide of SEQ ID NO: 266. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 266.

[0187] Herein disclosed but not encompassed by the wording of the claims is tha a polypeptide preferably comprises or consists of the amino acid sequence of SEQ ID NO: 266 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 266 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids, at least 240 amino acids or at least 245 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 266. In another aspect, the polypeptide comprises or consists of amino acids 1 to 248 of SEQ ID NO: 266.

[0188] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 267 of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 267.

[0189] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 267 of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 267.

[0190] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 267 of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 267.

[0191] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 267 of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 267.

[0192] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 267 of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 267.

[0193] In one aspect, the polypeptides differ by between 1 and 12 amino acids, such as 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 amino acids from SEQ ID NO: 267. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 267.

[0194] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 265, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0195] In another embodiment, the present invention relates to a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 265 or the cDNA sequence thereof of at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0196] The amino acid changes in the mature polypeptide of SEQ ID NO: 256, SEQ ID NO: 257, the mature polypeptide of SEQ ID NO: 266 or the mature polypeptide of SEQ ID NO: 267 described above may be of a minor nature, that is conservative amino acid substitutions or insertions that do not significantly affect the folding and / or activity of the protein; small deletions, typically of 1-30 amino acids; small amino- or carboxyl-terminal extensions, such as an amino-terminal methionine residue; a small linker peptide of up to 20-25 residues; or a small extension that facilitates purification by changing net charge or another function, such as a poly-histidine tract, an antigenic epitope or a binding domain.

[0197] Examples of conservative substitutions are within the groups of basic amino acids (arginine, lysine and histidine), acidic amino acids (glutamic acid and aspartic acid), polar amino acids (glutamine and asparagine), hydrophobic amino acids (leucine, isoleucine and valine), aromatic amino acids (phenylalanine, tryptophan and tyrosine), and small amino acids (glycine, alanine, serine, threonine and methionine). Amino acid substitutions that do not generally alter specific activity are known in the art and are described, for example, by H. Neurath and R.L. Hill, 1979, In, The Proteins, Academic Press, New York. Common substitutions are Ala / Ser, Val / Ile, Asp / Glu, Thr / Ser, Ala / Gly, Ala / Thr, Ser / Asn, Ala / Val, Ser / Gly, Tyr / Phe, Ala / Pro, Lys / Arg, Asp / Asn, Leu / lle, Leu / Val, Ala / Glu, and Asp / Gly.

[0198] Essential amino acids in a polypeptide can be identified according to procedures known in the art, such as site-directed mutagenesis or alanine-scanning mutagenesis (Cunningham and Wells, 1989, Science 244: 1081-1085). In the latter technique, single alanine mutations are introduced at every residue in the molecule, and the resultant mutant molecules are tested for lysozyme activity to identify amino acid residues that are critical to the activity of the molecule. See also, Hilton et al., 1996, J. Biol. Chem. 271: 4699-4708. The active site of the enzyme or other biological interaction can also be determined by physical analysis of structure, as determined by such techniques as nuclear magnetic resonance, crystallography, electron diffraction, or photoaffinity labelling, in conjunction with mutation of putative contact site amino acids. See, for example, de Vos et al., 1992, Science 255: 306-312; Smith et al., 1992, J. Mol. Biol. 224: 899-904; Wlodaver et al., 1992, FEBS Lett. 309: 59-64. The identity of essential amino acids can also be inferred from an alignment with a related polypeptide.

[0199] Single or multiple amino acid substitutions, deletions, and / or insertions can be made and tested using known methods of mutagenesis, recombination, and / or shuffling, followed by a relevant screening procedure, such as those disclosed by Reidhaar-Olson and Sauer, 1988, Science 241: 53-57; Bowie and Sauer, 1989, Proc. Natl. Acad. Sci. USA 86: 2152-2156; WO 95 / 17413; or WO 95 / 22625. Other methods that can be used include error-prone PCR, phage display (e.g., Lowman et al., 1991, Biochemistry 30: 10832-10837; U.S. Patent No. 5,223,409; WO 92 / 06204), and region-directed mutagenesis (Derbyshire et al., 1986, Gene 46: 145; Ner et al., 1988, DNA 7: 127).

[0200] Mutagenesis / shuffling methods can be combined with high-throughput, automated screening methods to detect activity of cloned, mutagenized polypeptides expressed by host cells (Ness et al., 1999, Nature Biotechnology 17: 893-896). Mutagenized DNA molecules that encode active polypeptides can be recovered from the host cells and rapidly sequenced using standard methods in the art. These methods allow the rapid determination of the importance of individual amino acid residues in a polypeptide.

[0201] The polypeptide may be a hybrid polypeptide in which a region of one polypeptide is fused at the N-terminus or the C-terminus of a region of another polypeptide.

[0202] The polypeptide may be a fusion polypeptide or cleavable fusion polypeptide in which another polypeptide is fused at the N-terminus or the C-terminus of the polypeptide of the present invention. A fusion polypeptide is produced by fusing a polynucleotide encoding another polypeptide to a polynucleotide of the present invention. Techniques for producing fusion polypeptides are known in the art, and include ligating the coding sequences encoding the polypeptides so that they are in frame and that expression of the fusion polypeptide is under control of the same promoter(s) and terminator. Fusion polypeptides may also be constructed using intein technology in which fusion polypeptides are created post-translationally (Cooper et al., 1993, EMBO J. 12: 2575-2583; Dawson et al., 1994, Science 266: 776-779).

[0203] A fusion polypeptide can further comprise a cleavage site between the two polypeptides. Upon secretion of the fusion protein, the site is cleaved releasing the two polypeptides. Examples of cleavage sites include, but are not limited to, the sites disclosed in Martin et al., 2003, J. Ind. Microbiol. Biotechnol. 3: 568-576; Svetina et al., 2000, J. Biotechnol. 76: 245-251; Rasmussen-Wilson et al., 1997, Appl. Environ. Microbiol. 63: 3488-3493; Ward et al., 1995, Biotechnology 13: 498-503; and Contreras et al., 1991, Biotechnology 9: 378-381; Eaton et al., 1986, Biochemistry 25: 505-512; Collins-Racie et al., 1995, Biotechnology 13: 982-987; Carter et al., 1989, Proteins: Structure, Function, and Genetics 6: 240-248; and Stevens, 2003, Drug Discovery World 4: 35-48.

[0204] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 288 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 288. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 288.

[0205] Herein disclosed but not encompassed by the wording of the claims is a polypeptide that preferably comprises or consists of the amino acid sequence of SEQ ID NO: 288 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 288 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 288. In another aspect, the polypeptide comprises or consists of amino acids 1 to 245 of SEQ ID NO: 288.

[0206] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to SEQ ID NO: 291 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 291.

[0207] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to SEQ ID NO: 291 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 291.

[0208] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to SEQ ID NO: 291 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 291.

[0209] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to SEQ ID NO: 291 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 291.

[0210] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to SEQ ID NO: 291 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 291.

[0211] Herein disclosed but not encompassed by the wording of the claims are the polypeptides that differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 291. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 291.

[0212] Herein disclosed but not encompassed by the wording of the claims is a polypeptide that preferably comprises or consists of the amino acid sequence of SEQ ID NO: 291 or an allelic variant thereof having lysozyme activity; comprises or consists of the amino acid sequence of SEQ ID NO: 291 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of amino acids 1 to 245 of SEQ ID NO: 291 and has lysozyme activity.

[0213] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 287, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0214] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 287 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0215] Herein disclosed but not encompassed by the wording of the claims are variants of the mature polypeptide of SEQ ID NO: 291 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 291 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 291 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 291 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 291 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 291 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 291 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 291.

[0216] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 293 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 293. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 293.

[0217] Herein disclosed but not encompassed by the wording of the claims is a A polypeptide of that comprises or consists of the amino acid sequence of SEQ ID NO: 293 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 293 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 293. In another aspect, the polypeptide comprises or consists of amino acids 1 to 249 of SEQ ID NO: 293.

[0218] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 294 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 294.

[0219] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 294 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 294.

[0220] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 294 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 294.

[0221] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 294 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 294.

[0222] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 294 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 294.

[0223] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 292, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0224] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 292 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0225] Herein disclosed but not encompassed by the wording of the claims are variants of the mature polypeptide of SEQ ID NO: 294 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 294 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 294 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 294 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 294 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 294 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 294 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 294.

[0226] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 296 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 296. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 296.

[0227] Herein disclosed but not encompassed by the wording of the claims is a polypeptide of that preferably comprises or consists of the amino acid sequence of SEQ ID NO: 296 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 296 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 296. In this disclosure, the polypeptide comprises or consists of amino acids 1 to 245 of SEQ ID NO: 296.

[0228] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 297 of at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 297.

[0229] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 297 of at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 297.

[0230] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 297 of at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 297.

[0231] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 297 of at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 297.

[0232] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 297 of at least 82%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 297.

[0233] Herein disclosed but not encompassed by the wording of the claims are polypeptides that differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 297. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 297.

[0234] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 295, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0235] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 295 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0236] Herein disclosed but not encompassed by the wording of the claims are variants of the mature polypeptide of SEQ ID NO: 297 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 297 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 297 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 297 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 297 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 297 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 297 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 297.

[0237] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 299 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 299. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 299.

[0238] Herein disclosed but not encompassed by the wording of the claims is a polypeptide that preferably comprises or consists of the amino acid sequence of SEQ ID NO: 299 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 299 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 299. In another aspect, the polypeptide comprises or consists of amino acids 1 to 247 of SEQ ID NO: 299.

[0239] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 300 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 300.

[0240] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 300 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 300.

[0241] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 300 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 300.

[0242] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 300 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 300.

[0243] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 300 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 300.

[0244] Herein disclosed but not encompassed by the wording of the claims are the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 300. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 300.

[0245] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 298, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0246] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 298 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0247] Herein disclosed but not encompassed by the wording of the claims are variants of the mature polypeptide of SEQ ID NO: 300 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 300 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 300 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 300 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 300 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 300 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 300 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 300.

[0248] Herein disclosed but not encompassed by the wording of the claims are The-invention polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 302 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 302. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 302.

[0249] Herein disclosed but not encompassed by the wording of the claims is aA polypeptide of that preferably comprises or consists of the amino acid sequence of SEQ ID NO: 302 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 302 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 302. In another aspect, the polypeptide comprises or consists of amino acids 1 to 250 of SEQ ID NO: 302.

[0250] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 303 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 303.

[0251] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 303 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 303.

[0252] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 303 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 303.

[0253] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 303 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 303.

[0254] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 303 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 303.

[0255] Herein disclosed but not encompassed by the wording of the claims are polypeptides that differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from SEQ ID NO: 303. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 303.

[0256] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 301, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0257] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 301 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0258] Herein disclosed but not encompassed by the wording of the claims are variants of the mature polypeptide of SEQ ID NO: 303 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 303 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 303 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 303 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 303 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 303 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 303 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 303.

[0259] Herein disclosed but not encompassed by the wording of the claims are polypeptides having a sequence identity to the mature polypeptide of SEQ ID NO: 305 of at least 80%, e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, which have lysozyme activity. In one aspect, the polypeptides differ by up to 49 amino acids, e.g., between 1 and 49 amino acids, such as 1-45, 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 amino acids, or 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 ,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 amino acids from the mature polypeptide of SEQ ID NO: 305. In an embodiment, the polypeptide has been isolated. In an embodiment, the polypeptide has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of the mature polypeptide of SEQ ID NO: 305.

[0260] Herein disclosed but not encompassed by the wording of the claims is aA polypeptide of that preferably comprises or consists of the amino acid sequence of SEQ ID NO: 305 or an allelic variant thereof; comprises or consists of the amino acid sequence of SEQ ID NO: 305 and a N-terminal and / or C-terminal His-tag and / or HQ-tag; or is a fragment thereof having lysozyme activity wherein the fragment comprises at least 200 amino acids, such as at least 210 amino acids, at least 215 amino acids, at least 220 amino acids, at least 225 amino acids, at least 230 amino acids, at least 235 amino acids or at least 240 amino acids. In another aspect, the polypeptide comprises or consists of the mature polypeptide of SEQ ID NO: 305. In another aspect, the polypeptide comprises or consists of amino acids 1 to 240 of SEQ ID NO: 305.

[0261] The present invention further relates to polypeptides having a sequence identity to SEQ ID NO: 306 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 70% of the lysozyme activity of SEQ ID NO: 306.

[0262] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 306 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 80% of the lysozyme activity of SEQ ID NO: 306.

[0263] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 306 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 90% of the lysozyme activity of SEQ ID NO: 306.

[0264] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 306 of at least 80% e.g., at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 95% of the lysozyme activity of SEQ ID NO: 306.

[0265] In a particular embodiment, the invention relates to polypeptides having a sequence identity to SEQ ID NO: 306 of at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%, and wherein the polypeptide has at least at least 100% of the lysozyme activity of SEQ ID NO: 306.

[0266] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide that hybridizes under medium-high stringency conditions, high stringency conditions, or very high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 304, (ii) the cDNA sequence thereof; or (iii) the full-length complement of (i) or (ii) (Sambrook et al., 1989, Molecular Cloning, A Laboratory Manual, 2d edition, Cold Spring Harbor, New York). In an embodiment, the polypeptide has been isolated.

[0267] Herein disclosed but not encompassed by the wording of the claims is a polypeptide having lysozyme activity encoded by a polynucleotide having a sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 304 or the cDNA sequence thereof of at least 80%, e.g., at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%. In a further embodiment, the polypeptide has been isolated.

[0268] Herein disclosed but not encompassed by the wording of the claims are variants of the mature polypeptide of SEQ ID NO: 306 comprising a substitution, and / or deletion, and / or insertion at one or more (e.g., several) positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 306 is not more than 49, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49. In another embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 306 is between 1 and 45, such as 1-40, 1-35, 1-30, 1-25, 1-20, 1-15, 1-10 or 1-5 positions. In an embodiment, the number of positions comprising one or more amino acid substitutions, and / or one or more amino acid deletions, and / or one or more amino acid insertions or any combination thereof in SEQ ID NO: 306 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In another embodiment, the number of substitutions and / or deletions and / or insertions in SEQ ID NO: 306 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of substitutions in SEQ ID NO: 306 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In a further embodiment, the number of conservative substitutions in SEQ ID NO: 306 is not more than 10, e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10. In an embodiment, the variant has at least at least 70%, e.g. at least 80%, at least 90%, at least 95% or at least 100% of the lysozyme activity of SEQ ID NO: 306.Sources of Polypeptides Having Lysozyme Activity

[0269] A polypeptide having lysozyme activity of the present invention may be obtained from microorganisms of any genus. For purposes of the present invention, the term "obtained from" as used herein in connection with a given source shall mean that the polypeptide encoded by a polynucleotide is produced by the source or by a strain in which the polynucleotide from the source has been inserted. In one aspect, the polypeptide obtained from a given source is secreted extracellularly.

[0270] The polypeptide may be a fungal polypeptide. In one aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the class Pezizomycetes, such as from the order Pezizales, or from the family Pyronemataceae, or from the genus Trichophaea or from the species Trichophaea saccata or Trichophaea minuta. In another aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the class Sordariomycetes, such as from the order Hypocreales, or from the family Hypocreaceae, or from the genus Trichoderma or from the species Trichoderma harzianum.

[0271] In another aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the class Sordariomycetes, such as from the order Sordariales, or from the family Chaetomiaceae, or from the genus Chaetomium or from the species Chaetomium sp. ZY287.

[0272] In another aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the order Mortierellales, or from the family Mortierellaceae, or from the genus Mortierella or from the species Mortierella sp. ZY002.

[0273] In another aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the class Sordariomycetes, such as from the order Hypocreales, or from the family Clavicipitaceae, or from the genus Metarhizium or from the species Metarhizium sp. XZ2431.

[0274] In another aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the class Leotiomycetes, such as from the family Pseudeurotiaceae, or from the genus Geomyces or from the species Geomyces auratus.

[0275] In another aspect, the polypeptide is a polypeptide having lysozyme activity from a fungus of the class Sordariomycetes, such as from the order Hypocreales, or from the family Nectriaceae, or from the genus Ilyonectria or from the species Ilyonectria rufa.

[0276] It will be understood that for the aforementioned species, the invention encompasses both the perfect and imperfect states, and other taxonomic equivalents, e.g., anamorphs, regardless of the species name by which they are known. Those skilled in the art will readily recognize the identity of appropriate equivalents.

[0277] Strains of these species are readily accessible to the public in a number of culture collections, such as the American Type Culture Collection (ATCC), Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (DSMZ), Centraalbureau Voor Schimmelcultures (CBS), and Agricultural Research Service Patent Culture Collection, Northern Regional Research Center (NRRL).

[0278] The polypeptide may be identified and obtained from other sources including microorganisms isolated from nature (e.g., soil, composts, water, etc.) or DNA samples obtained directly from natural materials (e.g., soil, composts, water, etc.) using the above-mentioned probes. Techniques for isolating microorganisms and DNA directly from natural habitats are well known in the art. A polynucleotide encoding the polypeptide may then be obtained by similarly screening a genomic DNA or cDNA library of another microorganism or mixed DNA sample. Once a polynucleotide encoding a polypeptide has been detected with the probe(s), the polynucleotide can be isolated or cloned by utilizing techniques that are known to those of ordinary skill in the art (see, e.g., Sambrook et al., 1989, supra).Polynucleotides

[0279] The present disclosure also relates to polynucleotides encoding a polypeptide of the present invention, as described herein. In an embodiment, the polynucleotide encoding the polypeptide of the present invention has been isolated.

[0280] The techniques used to isolate or clone a polynucleotide are known in the art and include isolation from genomic DNA or cDNA, or a combination thereof. The cloning of the polynucleotides from genomic DNA can be effected, e.g., by using the well-known polymerase chain reaction (PCR) or antibody screening of expression libraries to detect cloned DNA fragments with shared structural features. See, e.g., Innis et al., 1990, PCR: A Guide to Methods and Application, Academic Press, New York. Other nucleic acid amplification procedures such as ligase chain reaction (LCR), ligation activated transcription (LAT) and polynucleotide-based amplification (NASBA) may be used. The polynucleotides may be cloned from a strain of Trichophaea or a strain of Trichoderma, or a related organism and thus, for example, may be an allelic or species variant of the polypeptide encoding region of the polynucleotide.

[0281] Modification of a polynucleotide encoding a polypeptide of the present invention may be necessary for synthesizing polypeptides substantially similar to the polypeptide. The term "substantially similar" to the polypeptide refers to non-naturally occurring forms of the polypeptide. These polypeptides may differ in some engineered way from the polypeptide isolated from its native source, e.g., variants that differ in specific activity, thermostability, pH optimum, or the like. The variants may be constructed on the basis of the polynucleotide presented as the mature polypeptide coding sequence of SEQ ID NO: 255, SEQ ID NO: 265, SEQ ID NO: 287, SEQ ID NO: 292, SEQ ID NO: 295, SEQ ID NO: 298, SEQ ID NO: 301, SEQ ID NO: 304, or the cDNA sequence thereof, e.g., a subsequence thereof, and / or by introduction of nucleotide substitutions that do not result in a change in the amino acid sequence of the polypeptide, but which correspond to the codon usage of the host organism intended for production of the enzyme, or by introduction of nucleotide substitutions that may give rise to a different amino acid sequence. For a general description of nucleotide substitution, see, e.g., Ford et al., 1991, Protein Expression and Purification 2: 95-107.Nucleic Acid Constructs

[0282] The present disclosure also relates to nucleic acid constructs comprising a polynucleotide of the present invention operably linked to one or more control sequences that direct the expression of the coding sequence in a suitable host cell under conditions compatible with the control sequences.

[0283] The polynucleotide may be manipulated in a variety of ways to provide for expression of the polypeptide. Manipulation of the polynucleotide prior to its insertion into a vector may be desirable or necessary depending on the expression vector. The techniques for modifying polynucleotides utilizing recombinant DNA methods are well known in the art.

[0284] The control sequence may be a promoter, a polynucleotide that is recognized by a host cell for expression of a polynucleotide encoding a polypeptide of the present invention. The promoter contains transcriptional control sequences that mediate the expression of the polypeptide. The promoter may be any polynucleotide that shows transcriptional activity in the host cell including mutant, truncated, and hybrid promoters, and may be obtained from genes encoding extracellular or intracellular polypeptides either homologous or heterologous to the host cell.

[0285] Examples of suitable promoters for directing transcription of the nucleic acid constructs of the present invention in a bacterial host cell are the promoters obtained from the Bacillus amyloliquefaciens alpha-amylase gene (amyQ), Bacillus licheniformis alpha-amylase gene (amyL), Bacillus licheniformis penicillinase gene (penP), Bacillus stearothermophilus maltogenic amylase gene (amyM), Bacillus subtilis levansucrase gene (sacB), Bacillus subtilis xylA and xylB genes, Bacillus thuringiensis cryIIIA gene (Agaisse and Lereclus, 1994, Molecular Microbiology 13: 97-107), E. coli lac operon, E. coli trc promoter (Egon et al., 1988, Gene 69: 301-315), Streptomyces coelicolor agarase gene (dagA), and prokaryotic beta-lactamase gene (Villa-Kamaroff et al., 1978, Proc. Natl. Acad. Sci. USA 75: 3727-3731), as well as the tac promoter (DeBoer et al., 1983, Proc. Natl. Acad. Sci. USA 80: 21-25). Further promoters are described in "Useful proteins from recombinant bacteria" in Gilbert et al., 1980, Scientific American 242: 74-94; and in Sambrook et al., 1989, supra. Examples of tandem promoters are disclosed in WO 99 / 43835.

[0286] Examples of suitable promoters for directing transcription of the nucleic acid constructs of the present invention in a filamentous fungal host cell are promoters obtained from the genes for Aspergillus nidulans acetamidase, Aspergillus niger neutral alpha-amylase, Aspergillus niger acid stable alpha-amylase, Aspergillus niger or Aspergillus awamori glucoamylase (glaA), Aspergillus oryzae TAKA amylase, Aspergillus oryzae alkaline protease, Aspergillus oryzae triose phosphate isomerase, Fusarium oxysporum trypsin-like protease (WO 96 / 00787), Fusarium venenatum amyloglucosidase (WO 00 / 56900), Fusarium venenatum Daria (WO 00 / 56900), Fusarium venenatum Quinn (WO 00 / 56900), Rhizomucor miehei lipase, Rhizomucor miehei aspartic proteinase, Trichoderma reesei beta-glucosidase, Trichoderma reesei cellobiohydrolase I, Trichoderma reesei cellobiohydrolase II, Trichoderma reesei endoglucanase I, Trichoderma reesei endoglucanase II, Trichoderma reesei endoglucanase III, Trichoderma reesei endoglucanase V, Trichoderma reesei xylanase I, Trichoderma reesei xylanase II, Trichoderma reesei xylanase III, Trichoderma reesei beta-xylosidase, and Trichoderma reesei translation elongation factor, as well as the NA2-tpi promoter (a modified promoter from an Aspergillus neutral alpha-amylase gene in which the untranslated leader has been replaced by an untranslated leader from an Aspergillus triose phosphate isomerase gene; non-limiting examples include modified promoters from an Aspergillus niger neutral alpha-amylase gene in which the untranslated leader has been replaced by an untranslated leader from an Aspergillus nidulans or Aspergillus oryzae triose phosphate isomerase gene); and mutant, truncated, and hybrid promoters thereof. Other promoters are described in U.S. Patent No. 6,011,147.

[0287] In a yeast host, useful promoters are obtained from the genes for Saccharomyces cerevisiae enolase (ENO-1), Saccharomyces cerevisiae galactokinase (GAL1), Saccharomyces cerevisiae alcohol dehydrogenase / glyceraldehyde-3-phosphate dehydrogenase (ADH1, ADH2 / GAP), Saccharomyces cerevisiae triose phosphate isomerase (TPI), Saccharomyces cerevisiae metallothionein (CUP1), and Saccharomyces cerevisiae 3-phosphoglycerate kinase. Other useful promoters for yeast host cells are described by Romanos et al., 1992, Yeast 8: 423-488.

[0288] The control sequence may also be a transcription terminator, which is recognized by a host cell to terminate transcription. The terminator is operably linked to the 3'-terminus of the polynucleotide encoding the polypeptide. Any terminator that is functional in the host cell may be used in the present invention.

[0289] Preferred terminators for bacterial host cells are obtained from the genes for Bacillus clausii alkaline protease (aprH), Bacillus licheniformis alpha-amylase (amyL), and Escherichia coli ribosomal RNA (rrnB).

[0290] Preferred terminators for filamentous fungal host cells are obtained from the genes for Aspergillus nidulans acetamidase, Aspergillus nidulans anthranilate synthase, Aspergillus niger glucoamylase, Aspergillus niger alpha-glucosidase, Aspergillus oryzae TAKA amylase, Fusarium oxysporum trypsin-like protease, Trichoderma reesei beta-glucosidase, Trichoderma reesei cellobiohydrolase I, Trichoderma reesei cellobiohydrolase II, Trichoderma reesei endoglucanase I, Trichoderma reesei endoglucanase II, Trichoderma reesei endoglucanase III, Trichoderma reesei endoglucanase V, Trichoderma reesei xylanase I, Trichoderma reesei xylanase II, Trichoderma reesei xylanase III, Trichoderma reesei beta-xylosidase, and Trichoderma reesei translation elongation factor.

[0291] Preferred terminators for yeast host cells are obtained from the genes for Saccharomyces cerevisiae enolase, Saccharomyces cerevisiae cytochrome C (CYC1), and Saccharomyces cerevisiae glyceraldehyde-3-phosphate dehydrogenase. Other useful terminators for yeast host cells are described by Romanos et al., 1992, supra.

[0292] The control sequence may also be an mRNA stabilizer region downstream of a promoter and upstream of the coding sequence of a gene which increases expression of the gene.

[0293] Examples of suitable mRNA stabilizer regions are obtained from a Bacillus thuringiensis cryIIIA gene (WO 94 / 25612) and a Bacillus subtilis SP82 gene (Hue et al., 1995, Journal of Bacteriology 177: 3465-3471).

[0294] The control sequence may also be a leader, a nontranslated region of an mRNA that is important for translation by the host cell. The leader is operably linked to the 5'-terminus of the polynucleotide encoding the polypeptide. Any leader that is functional in the host cell may be used.

[0295] Preferred leaders for filamentous fungal host cells are obtained from the genes for Aspergillus oryzae TAKA amylase and Aspergillus nidulans triose phosphate isomerase.

[0296] Suitable leaders for yeast host cells are obtained from the genes for Saccharomyces cerevisiae enolase (ENO-1), Saccharomyces cerevisiae 3-phosphoglycerate kinase, Saccharomyces cerevisiae alpha-factor, and Saccharomyces cerevisiae alcohol dehydrogenase / glyceraldehyde-3-phosphate dehydrogenase (ADH2 / GAP).

[0297] The control sequence may also be a polyadenylation sequence, a sequence operably linked to the 3'-terminus of the polynucleotide and, when transcribed, is recognized by the host cell as a signal to add polyadenosine residues to transcribed mRNA. Any polyadenylation sequence that is functional in the host cell may be used.

[0298] Preferred polyadenylation sequences for filamentous fungal host cells are obtained from the genes for Aspergillus nidulans anthranilate synthase, Aspergillus niger glucoamylase, Aspergillus niger alpha-glucosidase Aspergillus oryzae TAKA amylase, and Fusarium oxysporum trypsin-like protease.

[0299] Useful polyadenylation sequences for yeast host cells are described by Guo and Sherman, 1995, Mol. Cellular Biol. 15: 5983-5990.

[0300] The control sequence may also be a signal peptide coding region that encodes a signal peptide linked to the N-terminus of a polypeptide and directs the polypeptide into the cell's secretory pathway. The 5'-end of the coding sequence of the polynucleotide may inherently contain a signal peptide coding sequence naturally linked in translation reading frame with the segment of the coding sequence that encodes the polypeptide. Alternatively, the 5'-end of the coding sequence may contain a signal peptide coding sequence that is foreign to the coding sequence. A foreign signal peptide coding sequence may be required where the coding sequence does not naturally contain a signal peptide coding sequence. Alternatively, a foreign signal peptide coding sequence may simply replace the natural signal peptide coding sequence in order to enhance secretion of the polypeptide. However, any signal peptide coding sequence that directs the expressed polypeptide into the secretory pathway of a host cell may be used.

[0301] Effective signal peptide coding sequences for bacterial host cells are the signal peptide coding sequences obtained from the genes for Bacillus NCIB 11837 maltogenic amylase, Bacillus licheniformis subtilisin, Bacillus licheniformis beta-lactamase, Bacillus stearothermophilus alpha-amylase, Bacillus stearothermophilus neutral proteases (nprT, nprS, nprM), and Bacillus subtilis prsA. Further signal peptides are described by Simonen and Palva, 1993, Microbiological Reviews 57: 109-137.

[0302] Effective signal peptide coding sequences for filamentous fungal host cells are the signal peptide coding sequences obtained from the genes for Aspergillus niger neutral amylase, Aspergillus niger glucoamylase, Aspergillus oryzae TAKA amylase, Humicola insolens cellulase, Humicola insolens endoglucanase V, Humicola lanuginosa lipase, and Rhizomucor miehei aspartic proteinase.

[0303] Useful signal peptides for yeast host cells are obtained from the genes for Saccharomyces cerevisiae alpha-factor and Saccharomyces cerevisiae invertase. Other useful signal peptide coding sequences are described by Romanos et al., 1992, supra.

[0304] The control sequence may also be a propeptide coding sequence that encodes a propeptide positioned at the N-terminus of a polypeptide. The resultant polypeptide is known as a proenzyme or propolypeptide (or a zymogen in some cases). A propolypeptide is generally inactive and can be converted to an active polypeptide by catalytic or autocatalytic cleavage of the propeptide from the propolypeptide. The propeptide coding sequence may be obtained from the genes for Bacillus subtilis alkaline protease (aprE), Bacillus subtilis neutral protease (nprT), Myceliophthora thermophila laccase (WO 95 / 33836), Rhizomucor miehei aspartic proteinase, and Saccharomyces cerevisiae alpha-factor.

[0305] Where both signal peptide and propeptide sequences are present, the propeptide sequence is positioned next to the N-terminus of a polypeptide and the signal peptide sequence is positioned next to the N-terminus of the propeptide sequence.

[0306] It may also be desirable to add regulatory sequences that regulate expression of the polypeptide relative to the growth of the host cell. Examples of regulatory sequences are those that cause expression of the gene to be turned on or off in response to a chemical or physical stimulus, including the presence of a regulatory compound. Regulatory sequences in prokaryotic systems include the lac, tac, and trp operator systems. In yeast, the ADH2 system or GAL1 system may be used. In filamentous fungi, the Aspergillus niger glucoamylase promoter, Aspergillus oryzae TAKA alpha-amylase promoter, and Aspergillus oryzae glucoamylase promoter, Trichoderma reesei cellobiohydrolase I promoter, and Trichoderma reesei cellobiohydrolase II promoter may be used. Other examples of regulatory sequences are those that allow for gene amplification. In eukaryotic systems, these regulatory sequences include the dihydrofolate reductase gene that is amplified in the presence of methotrexate, and the metallothionein genes that are amplified with heavy metals. In these cases, the polynucleotide encoding the polypeptide would be operably linked to the regulatory sequence.Expression Vectors

[0307] The present disclosure also relates to recombinant expression vectors comprising a polynucleotide of the present invention, a promoter, and transcriptional and translational stop signals. The various nucleotide and control sequences may be joined together to produce a recombinant expression vector that may include one or more convenient restriction sites to allow for insertion or substitution of the polynucleotide encoding the polypeptide at such sites. Alternatively, the polynucleotide may be expressed by inserting the polynucleotide or a nucleic acid construct comprising the polynucleotide into an appropriate vector for expression. In creating the expression vector, the coding sequence is located in the vector so that the coding sequence is operably linked with the appropriate control sequences for expression.

[0308] The recombinant expression vector may be any vector (e.g., a plasmid or virus) that can be conveniently subjected to recombinant DNA procedures and can bring about expression of the polynucleotide. The choice of the vector will typically depend on the compatibility of the vector with the host cell into which the vector is to be introduced. The vector may be a linear or closed circular plasmid.

[0309] The vector may be an autonomously replicating vector, i.e., a vector that exists as an extrachromosomal entity, the replication of which is independent of chromosomal replication, e.g., a plasmid, an extrachromosomal element, a minichromosome, or an artificial chromosome. The vector may contain any means for assuring self-replication. Alternatively, the vector may be one that, when introduced into the host cell, is integrated into the genome and replicated together with the chromosome(s) into which it has been integrated. Furthermore, a single vector or plasmid or two or more vectors or plasmids that together contain the total DNA to be introduced into the genome of the host cell, or a transposon, may be used.

[0310] The vector preferably contains one or more selectable markers that permit easy selection of transformed, transfected, transduced, or the like cells. A selectable marker is a gene the product of which provides for biocide or viral resistance, resistance to heavy metals, prototrophy to auxotrophs, and the like.

[0311] Examples of bacterial selectable markers are Bacillus licheniformis or Bacillus subtilis dal genes, or markers that confer antibiotic resistance such as ampicillin, chloramphenicol, kanamycin, neomycin, spectinomycin, or tetracycline resistance. Suitable markers for yeast host cells include, but are not limited to, ADE2, HIS3, LEU2, LYS2, MET3, TRP1, and URA3. Selectable markers for use in a filamentous fungal host cell include, but are not limited to, adeA (phosphoribosylaminoimidazole-succinocarboxamide synthase), adeB (phosphoribosylaminoimidazole synthase), amdS (acetamidase), argB (ornithine carbamoyltransferase), bar (phosphinothricin acetyltransferase), hph (hygromycin phosphotransferase), niaD (nitrate reductase), pyrG (orotidine-5'-phosphate decarboxylase), sC (sulfate adenyltransferase), and trpC (anthranilate synthase), as well as equivalents thereof. Preferred for use in an Aspergillus cell are Aspergillus nidulans or Aspergillus oryzae amdS and pyrG genes and a Streptomyces hygroscopicus bar gene. Preferred for use in a Trichoderma cell are adeA, adeB, amdS, hph, and pyrG genes.

[0312] The selectable marker may be a dual selectable marker system as described in WO 2010 / 039889. In one aspect, the dual selectable marker is an hph-tk dual selectable marker system.

[0313] The vector preferably contains an element(s) that permits integration of the vector into the host cell's genome or autonomous replication of the vector in the cell independent of the genome.

[0314] For integration into the host cell genome, the vector may rely on the polynucleotide's sequence encoding the polypeptide or any other element of the vector for integration into the genome by homologous or non-homologous recombination. Alternatively, the vector may contain additional polynucleotides for directing integration by homologous recombination into the genome of the host cell at a precise location(s) in the chromosome(s). To increase the likelihood of integration at a precise location, the integrational elements should contain a sufficient number of nucleic acids, such as 100 to 10,000 base pairs, 400 to 10,000 base pairs, and 800 to 10,000 base pairs, which have a high degree of sequence identity to the corresponding target sequence to enhance the probability of homologous recombination. The integrational elements may be any sequence that is homologous with the target sequence in the genome of the host cell. Furthermore, the integrational elements may be non-encoding or encoding polynucleotides. On the other hand, the vector may be integrated into the genome of the host cell by non-homologous recombination.

[0315] For autonomous replication, the vector may further comprise an origin of replication enabling the vector to replicate autonomously in the host cell in question. The origin of replication may be any plasmid replicator mediating autonomous replication that functions in a cell. The term "origin of replication" or "plasmid replicator" means a polynucleotide that enables a plasmid or vector to replicate in vivo.

[0316] Examples of bacterial origins of replication are the origins of replication of plasmids pBR322, pUC19, pACYC177, and pACYC184 permitting replication in E. coli, and pUB110, pE194, pTA1060, and pAMß1 permitting replication in Bacillus.

[0317] Examples of origins of replication for use in a yeast host cell are the 2 micron origin of replication, ARS1, ARS4, the combination of ARS1 and CEN3, and the combination of ARS4 and CEN6.

[0318] Examples of origins of replication useful in a filamentous fungal cell are AMA1 and ANS1 (Gems et al., 1991, Gene 98: 61-67; Cullen et al., 1987, Nucleic Acids Res. 15: 9163-9175; WO 00 / 24883). Isolation of the AMA1 gene and construction of plasmids or vectors comprising the gene can be accomplished according to the methods disclosed in WO 00 / 24883.

[0319] More than one copy of a polynucleotide of the present invention may be inserted into a host cell to increase production of a polypeptide. An increase in the copy number of the polynucleotide can be obtained by integrating at least one additional copy of the sequence into the host cell genome or by including an amplifiable selectable marker gene with the polynucleotide where cells containing amplified copies of the selectable marker gene, and thereby additional copies of the polynucleotide, can be selected for by cultivating the cells in the presence of the appropriate selectable agent.

[0320] The procedures used to ligate the elements described above to construct the recombinant expression vectors of the present invention are well known to one skilled in the art (see, e.g., Sambrook et al., 1989, supra).Host Cells

[0321] The present disclosure also relates to recombinant host cells, comprising a polynucleotide of the present invention operably linked to one or more control sequences that direct the production of a polypeptide of the present invention. A construct or vector comprising a polynucleotide is introduced into a host cell so that the construct or vector is maintained as a chromosomal integrant or as a self-replicating extra-chromosomal vector as described earlier. The term "host cell" encompasses any progeny of a parent cell that is not identical to the parent cell due to mutations that occur during replication. The choice of a host cell will to a large extent depend upon the gene encoding the polypeptide and its source.

[0322] The host cell may be any cell useful in the recombinant production of a polypeptide of the present invention, e.g., a prokaryote or a eukaryote.

[0323] The prokaryotic host cell may be any Gram-positive or Gram-negative bacterium. Gram-positive bacteria include, but are not limited to, Bacillus, Clostridium, Enterococcus, Geobacillus, Lactobacillus, Lactococcus, Oceanobacillus, Staphylococcus, Streptococcus, and Streptomyces. Gram-negative bacteria include, but are not limited to, Campylobacter, E. coli, Flavobacterium, Fusobacterium, Helicobacter, Ilyobacter, Neisseria, Pseudomonas, Salmonella, and Ureaplasma.

[0324] The bacterial host cell may be any Bacillus cell including, but not limited to, Bacillus alkalophilus, Bacillus amyloliquefaciens, Bacillus brevis, Bacillus circulans, Bacillus clausii, Bacillus coagulans, Bacillus firmus, Bacillus lautus, Bacillus lentus, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, Bacillus stearothermophilus, Bacillus subtilis, and Bacillus thuringiensis cells.

[0325] The bacterial host cell may also be any Streptococcus cell including, but not limited to, Streptococcus equisimilis, Streptococcus pyogenes, Streptococcus uberis, and Streptococcus equi subsp. Zooepidemicus cells.

[0326] The bacterial host cell may also be any Streptomyces cell including, but not limited to, Streptomyces achromogenes, Streptomyces avermitilis, Streptomyces coelicolor, Streptomyces griseus, and Streptomyces lividans cells.

[0327] The introduction of DNA into a Bacillus cell may be effected by protoplast transformation (see, e.g., Chang and Cohen, 1979, Mol. Gen. Genet. 168: 111-115), competent cell transformation (see, e.g., Young and Spizizen, 1961, J. Bacteriol. 81: 823-829, or Dubnau and Davidoff-Abelson, 1971, J. Mol. Biol. 56: 209-221), electroporation (see, e.g., Shigekawa and Dower, 1988, Biotechniques 6: 742-751), or conjugation (see, e.g., Koehler and Thorne, 1987, J. Bacteriol. 169: 5271-5278). The introduction of DNA into an E. coli cell may be effected by protoplast transformation (see, e.g., Hanahan, 1983, J. Mol. Biol. 166: 557-580) or electroporation (see, e.g., Dower et al., 1988, Nucleic Acids Res. 16: 6127-6145). The introduction of DNA into a Streptomyces cell may be effected by protoplast transformation, electroporation (see, e.g., Gong et al., 2004, Folia Microbiol. (Praha) 49: 399-405), conjugation (see, e.g., Mazodier et al., 1989, J. Bacteriol. 171: 3583-3585), or transduction (see, e.g., Burke et al., 2001, Proc. Natl. Acad. Sci. USA 98: 6289-6294). The introduction of DNA into a Pseudomonas cell may be effected by electroporation (see, e.g., Choi et al., 2006, J. Microbiol. Methods 64: 391-397) or conjugation (see, e.g., Pinedo and Smets, 2005, Appl. Environ. Microbiol. 71: 51-57). The introduction of DNA into a Streptococcus cell may be effected by natural competence (see, e.g., Perry and Kuramitsu, 1981, Infect. Immun. 32: 1295-1297), protoplast transformation (see, e.g., Catt and Jollick, 1991, Microbios 68: 189-207), electroporation (see, e.g., Buckley et al., 1999, Appl. Environ. Microbiol. 65: 3800-3804), or conjugation (see, e.g., Clewell, 1981, Microbiol. Rev. 45: 409-436). However, any method known in the art for introducing DNA into a host cell can be used.

[0328] The host cell may also be a eukaryote, such as a mammalian, insect, plant, or fungal cell.

[0329] The host cell may be a fungal cell. "Fungi" as used herein includes the phyla Ascomycota, Basidiomycota, Chytridiomycota, and Zygomycota as well as the Oomycota and all mitosporic fungi (as defined by Hawksworth et al., In, Ainsworth and Bisby's Dictionary of The Fungi, 8th edition, 1995, CAB International, University Press, Cambridge, UK).

[0330] The fungal host cell may be a yeast cell. "Yeast" as used herein includes ascosporogenous yeast (Endomycetales), basidiosporogenous yeast, and yeast belonging to the Fungi Imperfecti (Blastomycetes). Since the classification of yeast may change in the future, for the purposes of this invention, yeast shall be defined as described in Biology and Activities of Yeast (Skinner, Passmore, and Davenport, editors, Soc. App. Bacteriol. Symposium Series No. 9, 1980).

[0331] The yeast host cell may be a Candida, Hansenula, Kluyveromyces, Pichia, Saccharomyces, Schizosaccharomyces, or Yarrowia cell, such as a Kluyveromyces lactis, Saccharomyces carlsbergensis, Saccharomyces cerevisiae, Saccharomyces diastaticus, Saccharomyces douglasii, Saccharomyces kluyveri, Saccharomyces norbensis, Saccharomyces oviformis, or Yarrowia lipolytica cell.

[0332] The fungal host cell may be a filamentous fungal cell. "Filamentous fungi" include all filamentous forms of the subdivision Eumycota and Oomycota (as defined by Hawksworth et al., 1995, supra). The filamentous fungi are generally characterized by a mycelial wall composed of chitin, cellulose, glucan, chitosan, mannan, and other complex polysaccharides. Vegetative growth is by hyphal elongation and carbon catabolism is obligately aerobic. In contrast, vegetative growth by yeasts such as Saccharomyces cerevisiae is by budding of a unicellular thallus and carbon catabolism may be fermentative.

[0333] The filamentous fungal host cell may be an Acremonium, Aspergillus, Aureobasidium, Bjerkandera, Ceriporiopsis, Chrysosporium, Coprinus, Coriolus, Cryptococcus, Filibasidium, Fusarium, Humicola, Magnaporthe, Mucor, Myceliophthora, Neocallimastix, Neurospora, Paecilomyces, Penicillium, Phanerochaete, Phlebia, Piromyces, Pleurotus, Schizophyllum, Talaromyces, Thermoascus, Thielavia, Tolypocladium, Trametes, or Trichoderma cell.

[0334] For example, the filamentous fungal host cell may be an Aspergillus awamori, Aspergillus foetidus, Aspergillus fumigatus, Aspergillus japonicus, Aspergillus nidulans, Aspergillus niger, Aspergillus oryzae, Bjerkandera adusta, Ceriporiopsis aneirina, Ceriporiopsis caregiea, Ceriporiopsis gilvescens, Ceriporiopsis pannocinta, Ceriporiopsis rivulosa, Ceriporiopsis subrufa, Ceriporiopsis subvermispora, Chrysosporium inops, Chrysosporium keratinophilum, Chrysosporium lucknowense, Chrysosporium merdarium, Chrysosporium pannicola, Chrysosporium queenslandicum, Chrysosporium tropicum, Chrysosporium zonatum, Coprinus cinereus, Coriolus hirsutus, Fusarium bactridioides, Fusarium cerealis, Fusarium crookwellense, Fusarium culmorum, Fusarium graminearum, Fusarium graminum, Fusarium heterosporum, Fusarium negundi, Fusarium oxysporum, Fusarium reticulatum, Fusarium roseum, Fusarium sambucinum, Fusarium sarcochroum, Fusarium sporotrichioides, Fusarium sulphureum, Fusarium torulosum, Fusarium trichothecioides, Fusarium venenatum, Humicola insolens, Humicola lanuginosa, Mucor miehei, Myceliophthora thermophila, Neurospora crassa, Penicillium purpurogenum, Phanerochaete chrysosporium, Phlebia radiata, Pleurotus eryngii, Thielavia terrestris, Trametes villosa, Trametes versicolor, Trichoderma harzianum, Trichoderma koningii, Trichoderma longibrachiatum, Trichoderma reesei, or Trichoderma viride cell.

[0335] Fungal cells may be transformed by a process involving protoplast formation, transformation of the protoplasts, and regeneration of the cell wall in a manner known per se. Suitable procedures for transformation of Aspergillus and Trichoderma host cells are described in EP 238023, Yelton et al., 1984, Proc. Natl. Acad. Sci. USA 81: 1470-1474, and Christensen et al., 1988, Bio / Technology 6: 1419-1422. Suitable methods for transforming Fusarium species are described by Malardier et al., 1989, Gene 78: 147-156, and WO 96 / 00787. Yeast may be transformed using the procedures described by Becker and Guarente, In Abelson, J.N. and Simon, M.I., editors, Guide to Yeast Genetics and Molecular Biology, Methods in Enzymology, Volume 194, pp 182-187, Academic Press, Inc., New York; Ito et al., 1983, J. Bacteriol. 153: 163; and Hinnen et al., 1978, Proc. Natl. Acad. Sci. USA 75: 1920.Methods of Production

[0336] The present invention-disclosure also relates to methods of producing a polypeptide of the present invention, comprising (a) cultivating a cell, which in its wild-type form produces the polypeptide, under conditions conducive for production of the polypeptide; and optionally, (b) recovering the polypeptide. In one aspect, the cell is a Trichophaea cell. In another aspect, the cell is a Trichophaea saccata cell. In another aspect, the cell is a Trichoderma cell. In another aspect, the cell is a Trichoderma harzianum cell. In another aspect, the cell is a Trichoderma minuta cell. In another aspect, the cell is a Chaetomium cell. In another aspect, the cell is a Chaetomium sp. ZY287 cell. In another aspect, the cell is a Mortierellaceae cell. In another aspect, the cell is a Mortierella sp. ZY002 cell. In another aspect, the cell is a Metarhizium cell. In another aspect, the cell is a Metarhizium sp. XZ2431 cell. In another aspect, the cell is a Geomyces cell. In another aspect, the cell is a Geomyces auratus cell. In another aspect, the cell is a Ilyonectria cell. In another aspect, the cell is a Ilyonectria rufa cell.

[0337] The present disclosure also relates to methods of producing a polypeptide of the present invention, comprising (a) cultivating a recombinant host cell of the present invention under conditions conducive for production of the polypeptide; and optionally, (b) recovering the polypeptide.

[0338] The host cells are cultivated in a nutrient medium suitable for production of the polypeptide using methods known in the art. For example, the cells may be cultivated by shake flask cultivation, or small-scale or large-scale fermentation (including continuous, batch, fed-batch, or solid state fermentations) in laboratory or industrial fermenters in a suitable medium and under conditions allowing the polypeptide to be expressed and / or isolated. The cultivation takes place in a suitable nutrient medium comprising carbon and nitrogen sources and inorganic salts, using procedures known in the art. Suitable media are available from commercial suppliers or may be prepared according to published compositions (e.g., in catalogues of the American Type Culture Collection). If the polypeptide is secreted into the nutrient medium, the polypeptide can be recovered directly from the medium. If the polypeptide is not secreted, it can be recovered from cell lysates.

[0339] The polypeptide may be detected using methods known in the art that are specific for the polypeptides. These detection methods include, but are not limited to, use of specific antibodies, formation of an enzyme product, or disappearance of an enzyme substrate. For example, an enzyme assay may be used to determine the activity of the polypeptide.

[0340] The polypeptide may be recovered using methods known in the art. For example, the polypeptide may be recovered from the nutrient medium by conventional procedures including, but not limited to, collection, centrifugation, filtration, extraction, spray-drying, evaporation, or precipitation. In one aspect, a fermentation broth comprising the polypeptide is recovered.

[0341] The polypeptide may be purified by a variety of procedures known in the art including, but not limited to, chromatography (e.g., ion exchange, affinity, hydrophobic, chromatofocusing, and size exclusion), electrophoretic procedures (e.g., preparative isoelectric focusing), differential solubility (e.g., ammonium sulfate precipitation), SDS-PAGE, or extraction (see, e.g., Protein Purification, Janson and Ryden, editors, VCH Publishers, New York, 1989) to obtain substantially pure polypeptides.

[0342] In an alternative aspect, the polypeptide is not recovered, but rather a host cell of the present invention expressing the polypeptide is used as a source of the polypeptide.Enzyme Compositions

[0343] The present invention also relates to compositions comprising a lysozyme of the present invention. Preferably, the compositions are enriched in the lysozyme of the invention. The term "enriched" indicates that the lysozyme activity of the composition has been increased, e.g., with an enrichment factor of at least 1.1, such as at least 1.2, at least 1.3, at least 1.4, at least 1.5, at least 2.0, at least 3.0, at least 4.0, at least 5.0, at least 10.

[0344] The compositions may comprise a polypeptide of the present invention as the major enzymatic component, e.g., a mono-component composition. Such a composition may further comprise a formulating agent, as described below. Alternatively, the compositions may comprise multiple enzymatic activities.

[0345] In an embodiment, the composition comprises the polypeptide of the invention and one or more formulating agents as described below.Formulating agent

[0346] The enzyme of the invention may be formulated as a liquid or a solid. For a liquid formulation, the formulating agent may comprise a polyol (such as e.g. glycerol, ethylene glycol or propylene glycol), a salt (such as e.g. sodium chloride, sodium benzoate, potassium sorbate) or a sugar or sugar derivative (such as e.g. dextrin, glucose, sucrose, and sorbitol). Thus in one embodiment, the composition is a liquid composition comprising the polypeptide of the invention and one or more formulating agents selected from the list consisting of glycerol, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, sodium chloride, sodium benzoate, potassium sorbate, dextrin, glucose, sucrose, and sorbitol. The liquid formulation may be sprayed onto the feed after it has been pelleted or may be added to drinking water given to the animals.

[0347] For a solid formulation, the formulation may be for example as a granule, spray dried powder or agglomerate. The formulating agent may comprise a salt (organic or inorganic zinc, sodium, potassium or calcium salts such as e.g. such as calcium acetate, calcium benzoate, calcium carbonate, calcium chloride, calcium citrate, calcium sorbate, calcium sulfate, potassium acetate, potassium benzoate, potassium carbonate, potassium chloride, potassium citrate, potassium sorbate, potassium sulfate, sodium acetate, sodium benzoate, sodium carbonate, sodium chloride, sodium citrate, sodium sulfate, zinc acetate, zinc benzoate, zinc carbonate, zinc chloride, zinc citrate, zinc sorbate, zinc sulfate), starch or a sugar or sugar derivative (such as e.g. sucrose, dextrin, glucose, lactose, sorbitol).

[0348] In an embodiment, the solid composition is in granulated form. The granule may have a matrix structure where the components are mixed homogeneously. However, the granule typically comprises a core particle and one or more coatings, which typically are salt and / or wax coatings. Examples of waxes are polyethylene glycols; polypropylenes; Carnauba wax; Candelilla wax; bees wax; hydrogenated plant oil or animal tallow such as hydrogenated ox tallow, hydrogenated palm oil, hydrogenated cotton seeds and / or hydrogenated soy bean oil; fatty acid alcohols; mono-glycerides and / or di-glycerides, such as glyceryl stearate, wherein stearate is a mixture of stearic and palmitic acid; micro-crystalline wax; paraffin's; and fatty acids, such as hydrogenated linear long chained fatty acids and derivatives thereof. A preferred wax is palm oil or hydrogenated palm oil. The core particle can either be a homogeneous blend of lysozyme of the invention optionally combined with one or more additional enzymes and optionally together with one or more salts or an inert particle with the lysozyme of the invention optionally combined with one or more additional enzymes applied onto it.

[0349] In an embodiment, the material of the core particles are selected from the group consisting of inorganic salts (such as calcium acetate, calcium benzoate, calcium carbonate, calcium chloride, calcium citrate, calcium sorbate, calcium sulfate, potassium acetate, potassium benzoate, potassium carbonate, potassium chloride, potassium citrate, potassium sorbate, potassium sulfate, sodium acetate, sodium benzoate, sodium carbonate, sodium chloride, sodium citrate, sodium sulfate, zinc acetate, zinc benzoate, zinc carbonate, zinc chloride, zinc citrate, zinc sorbate, zinc sulfate), starch or a sugar or sugar derivative (such as e.g. sucrose, dextrin, glucose, lactose, sorbitol), sugar or sugar derivative (such as e.g. sucrose, dextrin, glucose, lactose, sorbitol), small organic molecules, starch, flour, cellulose and minerals and clay minerals (also known as hydrous aluminium phyllosilicates). In a preferred embodiment, the core comprises a clay mineral such as kaolinite or kaolin.

[0350] The salt coating is typically at least 1 µm thick and can either be one particular salt or a mixture of salts, such as Na 2 SO 4 , K 2 SO 4 , MgSO 4 and / or sodium citrate. Other examples are those described in e.g. WO 2008 / 017659, WO 2006 / 034710, WO 1997 / 05245, WO 1998 / 54980, WO 1998 / 55599, WO 2000 / 70034 or polymer coating such as described in WO 2001 / 00042.

[0351] In another embodiment, the composition is a solid composition comprising the lysozyme of the invention and one or more formulating agents selected from the list consisting of sodium chloride, sodium benzoate, potassium sorbate, sodium sulfate, potassium sulfate, magnesium sulfate, sodium thiosulfate, calcium carbonate, sodium citrate, dextrin, glucose, sucrose, sorbitol, lactose, starch and cellulose. In a preferred embodiment, the formulating agent is selected from one or more of the following compounds: sodium sulfate, dextrin, cellulose, sodium thiosulfate and calcium carbonate. In a preferred embodiment, the solid composition is in granulated form. In an embodiment, the solid composition is in granulated form and comprises a core particle, an enzyme layer comprising the lysozyme of the invention and a salt coating.

[0352] In a further embodiment, the formulating agent is selected from one or more of the following compounds: glycerol, ethylene glycol, 1, 2-propylene glycol or 1, 3-propylene glycol, sodium chloride, sodium benzoate, potassium sorbate, sodium sulfate, potassium sulfate, magnesium sulfate, sodium thiosulfate, calcium carbonate, sodium citrate, dextrin, glucose, sucrose, sorbitol, lactose, starch, kaolin and cellulose. In a preferred embodiment, the formulating agent is selected from one or more of the following compounds: 1, 2-propylene glycol, 1, 3-propylene glycol, sodium sulfate, dextrin, cellulose, sodium thiosulfate, kaolin and calcium carbonate.Animal Feed and Animal Feed Additives

[0353] The present invention also relates to animal feed compositions and animal feed additives. Animal feed compositions or diets have a relatively high content of protein. Poultry and pig diets can be characterised as indicated in Table B of WO 01 / 58275, columns 2-3. Fish diets can be characterised as indicated in column 4 of this Table B. Furthermore such fish diets usually have a crude fat content of 200-310 g / kg.

[0354] An animal feed composition according to the invention preferably has a crude protein content of 50-800 g / kg, and furthermore comprises at least one lysozyme as described herein or more than one lysozyme as described herein.

[0355] Furthermore, or in the alternative (to the crude protein content indicated above), the animal feed composition of the invention has a content of metabolisable energy of 10-30 MJ / kg; and / or a content of calcium of 0.1-200 g / kg; and / or a content of available phosphorus of 0.1-200 g / kg; and / or a content of methionine of 0.1-100 g / kg; and / or a content of methionine plus cysteine of 0.1-150 g / kg; and / or a content of lysine of 0.5-50 g / kg.

[0356] In particular embodiments, the content of metabolisable energy, crude protein, calcium, phosphorus, methionine, methionine plus cysteine, and / or lysine is within any one of ranges 2, 3, 4 or 5 in Table B of WO 01 / 58275 (R. 2-5).

[0357] Crude protein is calculated as nitrogen (N) multiplied by a factor 6.25, i.e. Crude protein (g / kg)= N (g / kg) x 6.25. The nitrogen content is determined by the Kjeldahl method (A.O.A.C., 1984, Official Methods of Analysis 14th ed., Association of Official Analytical Chemists, Washington DC).

[0358] Metabolisable energy can be calculated on the basis of the NRC publication Nutrient requirements in swine, ninth revised edition 1988, subcommittee on swine nutrition, committee on animal nutrition, board of agriculture, national research council. National Academy Press, Washington, D.C., pp. 2-6, and the European Table of Energy Values for Poultry Feed-stuffs, Spelderholt centre for poultry research and extension, 7361 DA Beekbergen, The Netherlands. Grafisch bedrijf Ponsen & looijen bv, Wageningen. ISBN 90-71463-12-5.

[0359] The dietary content of calcium, available phosphorus and amino acids in complete animal diets is calculated on the basis of feed tables such as Veevoedertabel 1997, gegevens over chemische samenstelling, verteerbaarheid en voederwaarde van voedermiddelen, Central Veevoederbureau, Runderweg 6, 8219 pk Lelystad. ISBN 90-72839-13-7.

[0360] In a particular embodiment, the animal feed composition of the invention preferably contains at least one vegetable protein as defined above.

[0361] The animal feed composition of the invention may also contain animal protein, such as Meat and Bone Meal, Feather meal, and / or Fish Meal, typically in an amount of 0-25%. The animal feed composition of the invention may also comprise Dried Distillers Grains with Solubles (DDGS), typically in amounts of 0-30%.

[0362] In still further particular embodiments, the animal feed composition of the invention preferably contains 0-80% maize; and / or 0-80% sorghum; and / or 0-70% wheat; and / or 0-70% Barley; and / or 0-30% oats; and / or 0-40% soybean meal; and / or 0-25% fish meal; and / or 0-25% meat and bone meal; and / or 0-20% whey.

[0363] The animal feed may comprise vegetable proteins. In particular embodiments, the protein content of the vegetable proteins is at least 10, 20, 30, 40, 50, 60, 70, 80, or 90% (w / w). Vegetable proteins may be derived from vegetable protein sources, such as legumes and cereals, for example, materials from plants of the families Fabaceae (Leguminosae), Cruciferaceae, Chenopodiaceae, and Poaceae, such as soy bean meal, lupin meal, rapeseed meal, and combinations thereof.

[0364] In a particular embodiment, the vegetable protein source is material from one or more plants of the family Fabaceae, e.g., soybean, lupine, pea, or bean. In another particular embodiment, the vegetable protein source is material from one or more plants of the family Chenopodiaceae, e.g. beet, sugar beet, spinach or quinoa. Other examples of vegetable protein sources are rapeseed, and cabbage. In another particular embodiment, soybean is a preferred vegetable protein source. Other examples of vegetable protein sources are cereals such as barley, wheat, rye, oat, maize (corn), rice, and sorghum.

[0365] Animal diets can e.g. be manufactured as mash feed (non-pelleted) or pelleted feed. Typically, the milled feed-stuffs are mixed and sufficient amounts of essential vitamins and minerals are added according to the specifications for the species in question. Enzymes can be added as solid or liquid enzyme formulations. For example, for mash feed a solid or liquid enzyme formulation may be added before or during the ingredient mixing step. For pelleted feed the (liquid or solid) lysozyme / enzyme preparation may also be added before or during the feed ingredient step. Typically a liquid lysozyme / enzyme preparation comprises the lysozyme of the invention optionally with a polyol, such as glycerol, ethylene glycol or propylene glycol, and is added after the pelleting step, such as by spraying the liquid formulation onto the pellets. The enzyme may also be incorporated in a feed additive or premix.

[0366] Alternatively, the lysozyme can be prepared by freezing a mixture of liquid enzyme solution with a bulking agent such as ground soybean meal, and then lyophilizing the mixture.

[0367] In an embodiment, the composition comprises one or more additional enzymes. In an embodiment, the composition comprises one or more microbes. In an embodiment, the composition comprises one or more vitamins. In an embodiment, the composition comprises one or more minerals. In an embodiment, the composition comprises one or more amino acids. In an embodiment, the composition comprises one or more other feed ingredients.

[0368] In another embodiment, the composition comprises one or more of the polypeptides of the invention, one or more formulating agents and one or more additional enzymes. In an embodiment, the composition comprises one or more of the polypeptides of the invention, one or more formulating agents and one or more microbes. In an embodiment, the composition comprises one or more of the polypeptides of the invention, one or more formulating agents and one or more vitamins. In an embodiment, the composition comprises one or more of the polypeptides of the invention and one or more minerals. In an embodiment, the composition comprises the polypeptide of the invention, one or more formulating agents and one or more amino acids. In an embodiment, the composition comprises one or more of the polypeptides of the invention, one or more formulating agents and one or more other feed ingredients.

[0369] In a further embodiment, the composition comprises one or more of the polypeptides of the invention, one or more formulating agents and one or more components selected from the list consisting of: one or more additional enzymes; one or more microbes; one or more vitamins; one or more minerals; one or more amino acids; and one or more other feed ingredients.

[0370] The final lysozyme concentration in the diet is within the range of 0.01-200 ppm enzyme protein per kg animal feed, such as 0.1 to 150 ppm, 0.5 to 100 ppm, 1 to 75 ppm, 2 to 50 ppm, 3 to 25 ppm, 2 to 80 ppm, 5 to 60 ppm, 8 to 40 ppm or 10 to 30 ppm enzyme protein per kg animal feed, or any combination of these intervals.

[0371] It is at present contemplated that the lysozyme is administered in one or more of the following amounts (dosage ranges): 0.01-200; 0.01-100; 0.5-100; 1-50; 5-100; 5-50; 10-100; 0.05-50; 5-25; or 0.10-10 - all these ranges being in mg lysozyme per kg feed (ppm).

[0372] For determining mg lysozyme protein per kg feed, the lysozyme is purified from the feed composition, and the specific activity of the purified lysozyme is determined using a relevant assay (see under lysozyme activity). The lysozyme activity of the feed composition as such is also determined using the same assay, and on the basis of these two determinations, the dosage in mg lysozyme protein per kg feed is calculated.

[0373] In a particular embodiment, the animal feed additive of the invention is intended for being included (or prescribed as having to be included) in animal diets or feed at levels of 0.01 to 10.0%; more particularly 0.05 to 5.0%; or 0.2 to 1.0% (% meaning g additive per 100 g feed). This is so in particular for premixes.

[0374] The same principles apply for determining mg lysozyme protein in feed additives. Of course, if a sample is available of the lysozyme used for preparing the feed additive or the feed, the specific activity is determined from this sample (no need to purify the lysozyme from the feed composition or the additive).Additional Enzymes

[0375] In another embodiment, the compositions described herein optionally include one or more enzymes. Enzymes can be classified on the basis of the handbook Enzyme Nomenclature from NC-IUBMB, 1992), see also the ENZYME site at the internet: http: / / www.expasy.ch / enzyme / . ENZYME is a repository of information relative to the nomenclature of enzymes. It is primarily based on the recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUB-MB), Academic Press, Inc., 1992, and it describes each type of characterized enzyme for which an EC (Enzyme Commission) number has been provided (Bairoch A. The ENZYME database, 2000, Nucleic Acids Res 28:304-305). This IUB-MB Enzyme nomenclature is based on their substrate specificity and occasionally on their molecular mechanism; such a classification does not reflect the structural features of these enzymes.

[0376] Another classification of certain glycoside hydrolase enzymes, such as endoglucanase, xylanase, galactanase, mannanase, dextranase, lysozyme and galactosidase is described in Henrissat et al, "The carbohydrate-active enzymes database (CAZy) in 2013", Nucl. Acids Res. (1 January 2014) 42 (D1): D490-D495; see also www.cazy.org.

[0377] Thus the composition of the invention may also comprise at least one other enzyme selected from the group comprising of phytase (EC 3.1.3.8 or 3.1.3.26); xylanase (EC 3.2.1.8); galactanase (EC 3.2.1.89); alpha-galactosidase (EC 3.2.1.22); protease (EC 3.4); phospholipase A1 (EC 3.1.1.32); phospholipase A2 (EC 3.1.1.4); lysophospholipase (EC 3.1.1.5); phospholipase C (3.1.4.3); phospholipase D (EC 3.1.4.4); amylase such as, for example, alpha-amylase (EC 3.2.1.1); arabinofuranosidase (EC 3.2.1.55); beta-xylosidase (EC 3.2.1.37); acetyl xylan esterase (EC 3.1.1.72); feruloyl esterase (EC 3.1.1.73); cellulase (EC 3.2.1.4); cellobiohydrolases (EC 3.2.1.91); beta-glucosidase (EC 3.2.1.21); pullulanase (EC 3.2.1.41), alpha-mannosidase (EC 3.2.1.24), mannanase (EC 3.2.1.25) and beta-glucanase (EC 3.2.1.4 or EC 3.2.1.6), or any mixture thereof.

[0378] In a particular embodiment, the composition of the invention may_comprises a phytase (EC 3.1.3.8 or 3.1.3.26). Examples of commercially available phytases include Bio-Feed ™< Phytase (Novozymes), Ronozyme ®< P, Ronozyme ®< NP and Ronozyme ®< HiPhos (DSM Nutritional Products), Natuphos ™< (BASF), Finase ®< and Quantum ®< Blue (AB Enzymes), OptiPhos ®< (Huvepharma) Phyzyme ®< XP (Verenium / DuPont) and Axtra ®< PHY (DuPont). Other preferred phytases include those described in e.g. WO 98 / 28408, WO 00 / 43503, and WO 03 / 066847.

[0379] In a particular embodiment, the composition of the invention may comprises a xylanase (EC 3.2.1.8). Examples of commercially available xylanases include Ronozyme ®< WX and Ronozyme ®< G2 (DSM Nutritional Products), Econase ®< XT and Barley (AB Vista), Xylathin ®< (Verenium), Hostazym ®< X (Huvepharma) and Axtra ®< XB (Xylanase / beta-glucanase, DuPont).

[0380] In a particular embodiment, the composition of the invention may comprises a protease (EC 3.4). Examples of commercially available proteases include Ronozyme ®< ProAct (DSM Nutritional Products).Microbes

[0381] In an embodiment, the animal feed composition further comprises one or more additional microbes. In a particular embodiment, the animal feed composition further comprises a bacterium from one or more of the following genera: Lactobacillus, Lactococcus, Streptococcus, Bacillus, Pediococcus, Enterococcus, Leuconostoc, Carnobacterium, Propionibacterium, Bifidobacterium, Clostridium and Megasphaera or any combination thereof.

[0382] In a preferred embodiment, animal feed composition further comprises a bacterium from one or more of the following strains: Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens, Bacillus cereus, Bacillus pumilus, Bacillus polymyxa, Bacillus megaterium, Bacillus coagulans, Bacillus circulans, Enterococcus faecium, Enterococcus spp, and Pediococcus spp, Lactobacillus spp, Bifidobacterium spp, Lactobacillus acidophilus, Pediococsus acidilactici, Lactococcus lactis, Bifidobacterium bifidum, Propionibacterium thoenii, Lactobacillus farciminus, lactobacillus rhamnosus, Clostridium butyricum, Bifidobacterium animalis ssp. animalis, Lactobacillus reuteri, Lactobacillus salivarius ssp. salivarius, Megasphaera elsdenii, Propionibacteria sp.

[0383] In a more preferred embodiment, composition, animal feed additive or animal feed further comprises a bacterium from one or more of the following strains of Bacillus subtilis: 3A-P4 (PTA-6506), 15A-P4 (PTA-6507), 22C-P1 (PTA-6508), 2084 (NRRL B-500130), LSSA01 (NRRL-B-50104), BS27 (NRRL B-501 05), BS 18 (NRRL B-50633), BS 278 (NRRL B-50634), DSM 29870, DSM 29871, NRRL B-50136, NRRL B-50605, NRRL B-50606, NRRL B-50622 and PTA-7547.

[0384] In a more preferred embodiment, composition, animal feed additive or animal feed further comprises a bacterium from one or more of the following strains of Bacillus pumilus: NRRL B-50016, ATCC 700385, NRRL B-50885 or NRRL B-50886.

[0385] In a more preferred embodiment, composition, animal feed additive or animal feed further comprises a bacterium from one or more of the following strains of Bacillus lichenformis: NRRL B 50015, NRRL B-50621 or NRRL B-50623.

[0386] In a more preferred embodiment, composition, animal feed additive or animal feed further comprises a bacterium from one or more of the following strains of Bacillus amyloliquefaciens: DSM 29869, DSM 29869, NRRL B 50607, PTA-7543, PTA-7549, NRRL B-50349, NRRL B-50606, NRRL B-50013, NRRL B-50151, NRRL B-50141, NRRL B-50147 or NRRL B-50888.

[0387] The bacterial count of each of the bacterial strains in the animal feed composition is between 1x10 4< and 1x10 14< CFU / kg of dry matter, preferably between 1x10 6< and 1x10 12< CFU / kg of dry matter, and more preferably between 1x10 7< and 1x10 11< CFU / kg of dry matter. In a more preferred embodiment the bacterial count of each of the bacterial strains in the animal feed composition is between 1x10 8< and 1x10 10< CFU / kg of dry matter.

[0388] The bacterial count of each of the bacterial strains in the animal feed composition is between 1x10 5< and 1x10 15< CFU / animal / day, preferably between 1x10 7< and 1x10 13< CFU / animal / day, and more preferably between 1x10 8< and 1x10 12< CFU / animal / day. In a more preferred embodiment the bacterial count of each of the bacterial strains in the animal feed composition is between 1x10 9< and 1x10 11< CFU / animal / day.

[0389] In another embodiment, the one or more bacterial strains are present in the form of a stable spore.Premix

[0390] In an embodiment, the animal feed may include a premix, comprising e.g. vitamins, minerals, enzymes, amino acids, preservatives, antibiotics, other feed ingredients or any combination thereof which are mixed into the animal feed.Amino Acids

[0391] The composition of the invention may further comprise one or more amino acids. Examples of amino acids which are used in animal feed are lysine, alanine, beta-alanine, threonine, methionine and tryptophan.Vitamins and Minerals

[0392] In another embodiment, the animal feed may include one or more vitamins, such as one or more fat-soluble vitamins and / or one or more water-soluble vitamins. In another embodiment, the animal feed may optionally include one or more minerals, such as one or more trace minerals and / or one or more macro minerals.

[0393] Usually fat- and water-soluble vitamins, as well as trace minerals form part of a so-called premix intended for addition to the feed, whereas macro minerals are usually separately added to the feed.

[0394] Non-limiting examples of fat-soluble vitamins include vitamin A, vitamin D3, vitamin E, and vitamin K, e.g., vitamin K3.

[0395] Non-limiting examples of water-soluble vitamins include vitamin B12, biotin and choline, vitamin B1, vitamin B2, vitamin B6, niacin, folic acid and panthothenate, e.g., Ca-D-panthothenate.

[0396] Non-limiting examples of trace minerals include boron, cobalt, chloride, chromium, copper, fluoride, iodine, iron, manganese, molybdenum, selenium and zinc.

[0397] Non-limiting examples of macro minerals include calcium, magnesium, potassium and sodium.

[0398] The nutritional requirements of these components (exemplified with poultry and piglets / pigs) are listed in Table A of WO 01 / 58275. Nutritional requirement means that these components should be provided in the diet in the concentrations indicated.

[0399] In the alternative, the animal feed additive of the invention comprises at least one of the individual components specified in Table A of WO 01 / 58275. At least one means either of, one or more of, one, or two, or three, or four and so forth up to all thirteen, or up to all fifteen individual components. More specifically, this at least one individual component is included in the additive of the invention in such an amount as to provide an in-feed-concentration within the range indicated in column four, or column five, or column six of Table A.

[0400] In a still further embodiment, the animal feed additive of the invention comprises at least one of the below vitamins, preferably to provide an in-feed-concentration within the ranges specified in the below Table 1 (for piglet diets, and broiler diets, respectively). Table 1: Typical vitamin recommendationsVitamin Piglet diet Broiler diet Vitamin A10,000-15,000 IU / kg feed8-12,500 IU / kg feedVitamin D31800-2000 IU / kg feed3000-5000 IU / kg feedVitamin E60-100 mg / kg feed150-240 mg / kg feedVitamin K32-4 mg / kg feed2-4 mg / kg feedVitamin B12-4 mg / kg feed2-3 mg / kg feedVitamin B26-10 mg / kg feed7-9 mg / kg feedVitamin B64-8 mg / kg feed3-6 mg / kg feedVitamin B120.03-0.05 mg / kg feed0.015-0.04 mg / kg feedNiacin (Vitamin B3)30-50 mg / kg feed50-80 mg / kg feedPantothenic acid20-40 mg / kg feed10-18 mg / kg feedFolic acid1-2 mg / kg feed1-2 mg / kg feedBiotin0.15-0.4 mg / kg feed0.15-0.3 mg / kg feedCholine chloride200-400 mg / kg feed300-600 mg / kg feed Other feed ingredients

[0401] The composition of the invention may further comprise colouring agents, stabilisers, growth improving additives and aroma compounds / flavourings, polyunsaturated fatty acids (PUFAs); reactive oxygen generating species, anti-microbial peptides and anti-fungal polypeptides.

[0402] Examples of colouring agents are carotenoids such as beta-carotene, astaxanthin, and lutein.

[0403] Examples of aroma compounds / flavourings are creosol, anethol, deca-, undeca-and / or dodeca-lactones, ionones, irone, gingerol, piperidine, propylidene phatalide, butylidene phatalide, capsaicin and tannin.

[0404] Examples of stabilizing agents (e.g. acidifiers) are organic acids. Examples of these are benzoic acid (VevoVitall ®< , DSM Nutritional Products), formic acid, butyric acid, fumaric acid and propionic acid.

[0405] Examples of antimicrobial peptides (AMP's) are CAP18, Leucocin A, Tritrpticin, Protegrin-1, Thanatin, Defensin, Lactoferrin, Lactoferricin, and Ovispirin such as Novispirin (Robert Lehrer, 2000), Plectasins, and Statins, including the compounds and polypeptides disclosed in WO 03 / 044049 and WO 03 / 048148, as well as variants or fragments of the above that retain antimicrobial activity.

[0406] Examples of antifungal polypeptides (AFP's) are the Aspergillus giganteus, and Aspergillus niger peptides, as well as variants and fragments thereof which retain antifungal activity, as disclosed in WO 94 / 01459 and WO 02 / 090384.

[0407] Examples of polyunsaturated fatty acids are C18, C20 and C22 polyunsaturated fatty acids, such as arachidonic acid, docosohexaenoic acid, eicosapentaenoic acid and gammalinoleic acid.

[0408] Examples of reactive oxygen generating species are chemicals such as perborate, persulphate, or percarbonate; and enzymes such as an oxidase, an oxygenase or a syntethase.

[0409] The composition of the invention may further comprise at least one amino acid. Examples of amino acids which are used in animal feed are lysine, alanine, beta-alanine, threonine, methionine and tryptophan.Uses Use in Animal Feed

[0410] A lysozyme of the invention may also be used in animal feed, wherein the term "animal" refers to all animals except humans. Examples of animals are non-ruminants, and ruminants. Ruminant animals include, for example, animals such as sheep, goats, cattle, e.g. beef cattle, cows, and young calves, deer, yank, camel, llama and kangaroo. Non-ruminant animals include mono-gastric animals, e.g. pigs or swine (including, but not limited to, piglets, growing pigs, and sows); poultry such as turkeys, ducks and chicken (including but not limited to broiler chicks, layers); horses (including but not limited to hotbloods, coldbloods and warm bloods), young calves; fish (including but not limited to amberjack, arapaima, barb, bass, bluefish, bocachico, bream, bullhead, cachama, carp, catfish, catla, chanos, char, cichlid, cobia, cod, crappie, dorada, drum, eel, goby, goldfish, gourami, grouper, guapote, halibut, java, labeo, lai, loach, mackerel, milkfish, mojarra, mudfish, mullet, paco, pearlspot, pejerrey, perch, pike, pompano, roach, salmon, sampa, sauger, sea bass, seabream, shiner, sleeper, snakehead, snapper, snook, sole, spinefoot, sturgeon, sunfish, sweetfish, tench, terror, tilapia, trout, tuna, turbot, vendace, walleye and whitefish); and crustaceans (including but not limited to shrimps and prawns).

[0411] In the use according to the invention the lysozymes can be fed to the animal before, after, or simultaneously with the diet. The latter is preferred.

[0412] In a particular embodiment, the lysozyme, in the form in which it is added to the feed, or when being included in a feed additive, is well-defined. Well-defined means that the lysozyme preparation is at least 50% pure as determined by Size-exclusion chromatography (see Example 12 of WO 01 / 58275). In other particular embodiments the lysozyme preparation is at least 60, 70, 80, 85, 88, 90, 92, 94, or at least 95% pure as determined by this method.

[0413] A well-defined lysozyme preparation is advantageous. For instance, it is much easier to dose correctly to the feed a lysozyme that is essentially free from interfering or contaminating other lysozymes. The term dose correctly refers in particular to the objective of obtaining consistent and constant results, and the capability of optimizing dosage based upon the desired effect.

[0414] For the use in animal feed, however, the lysozyme need not be pure; it may e.g. include other enzymes, in which case it could be termed a lysozyme preparation.

[0415] The lysozyme preparation can be (a) added directly to the feed, or (b) it can be used in the production of one or more intermediate compositions such as feed additives or premixes that is subsequently added to the feed (or used in a treatment process). The degree of purity described above refers to the purity of the original lysozyme preparation, whether used according to (a) or (b) above.Methods of Improving Animal Performance

[0416] In an embodiment, the present disclosure also relates to a method of improving the performance of an animal comprising administering to the animal the animal feed or an animal feed additive of the invention.

[0417] Preferably, the method of improving the performance of an animal comprises administering to the animal an animal feed or an animal feed additive comprising the lysozyme of SEQ ID NO: 257, SEQ ID NO: 264, SEQ ID NO: 267, SEQ ID NO: 291, SEQ ID NO: 294, SEQ ID NO: 297, SEQ ID NO: 300, SEQ ID NO: 303 and / or SEQ ID NO: 306.

[0418] In an embodiment, the present invention also relates to the use of the animal feed or an animal feed additive of the invention for improving the performance of an animal. In another embodiment, the invention relates to the use of one or more lysozymes of the invention for improving the performance of an animal.

[0419] In one embodiment, 'improving the performance of an animal' means that there is an increase in body weight gain. In another embodiment, 'improving the performance of an animal' means that there is an improved feed conversion ratio. In a further embodiment, 'improving the performance of an animal' means that there is an increased feed efficiency. In a further embodiment, 'improving the performance of an animal' means that there is an increase in body weight gain and / or an improved feed conversion ratio and / or an increased feed efficiency.Methods of Preparing an Animal Feed

[0420] The present disclosure provides a method for preparing an animal feed comprising adding one or more lysozymes of the present invention to one or more animal feed ingredients. Animal feed ingredients include, but are not limited to concentrates (as defined herein), forage (as defined herein), enzymes, microbe, vitamins, minerals and amino acids.

[0421] In a preferred embodiment, the method of preparing an animal feed comprises mixing the lysozyme of SEQ ID NO: 257, SEQ ID NO: 267, SEQ ID NO: 294, SEQ ID NO: 297, SEQ ID NO: 300, SEQ ID NO: 303 and / or SEQ ID NO: 306 with concentrate and / or forage.Methods of Treatment of Clostridium perfringens and / or Necrotic enteritis

[0422] In another aspect, the present invention provides a polypeptide, animal feed or animal feed additive according to the claims for use in the treatment of necrotic enteritis comprising the steps of administering the animal feed or animal feed additive to one or more animals with necrotic enteritis. In an embodiment, the present invention provides a polypeptide according to the claims for use in the treatment of a Clostridium perfringens infection comprising the steps of administering the animal feed or animal feed additive to one or more animals with a Clostridium perfringens infection.

[0423] In another aspect, the present invention provides a polypeptide according to the claims for use in the treatment of necrotic enteritis comprising the steps of administering one or more lysozymes of the invention to one or more animals with necrotic enteritis. In an embodiment, the present invention provides a polypeptide according to the claims for use in the treatment of a Clostridium perfringens infection comprising the steps of administering one or more lysozymes of the invention to one or more animals with a Clostridium perfringens infection.

[0424] In a further aspect, the invention relates to the animal feed or animal feed additive of the invention according to the claims for use in the treatment of necrotic enteritis in an animal. In an embodiment, the invention relates to composition comprising the lysozyme of SEQ ID NO: 257, SEQ ID NO: 267, SEQ ID NO: 294, SEQ ID NO: 297, SEQ ID NO: 300, SEQ ID NO: 303 and / or SEQ ID NO: 306 for use in the treatment of necrotic enteritis in an animal.

[0425] In a further aspect, the invention relates to the animal feed or animal feed additive of the invention for use in the treatment of a Clostridium perfringens infection in an animal. In an embodiment, the invention relates to composition comprising the lysozyme of SEQ ID NO: 257, SEQ ID NO: 267, SEQ ID NO: 294, SEQ ID NO: 297, SEQ ID NO: 300, SEQ ID NO: 303 and / or SEQ ID NO: 306 for use in the treatment of a Clostridium perfringens infection in an animal.

[0426] Antimicrobial activity towards Clostridium perfringens can be determined according to the antimicrobial assay described in Example 12.

[0427] The present invention is further described by the following examples that should not be construed as limiting the scope of the invention.Examples Strains

[0428] Trichophaea saccata CBS804.70 was purchased from the Centraalbureau voor Schimmelcultures (Utrecht, the Netherlands). According to CBS, the strain was obtained from coal spoil tip soil, with high surface temperatures from Staffordshire, England in May 1968.

[0429] Trichoderma harzianum, originally named A00611 was deposited at the Centraalbureau voor Schimmelcultures, Ultrecht, Netherlands under the code: CBS223.93.

[0430] Chaetomium thermophilum var. thermophilum was purchased from Centraalbureau voor Schimmelcultures, Ultrecht, Netherlands under the code CBS144.50. According to CBS, the strain was obtained from decaying wheat straw from Leeds, England on or before 1950.

[0431] Chaetomium sp. ZY287 was obtained from a soil sample from Beijing, China in August 2013. Mortierella sp. ZY002 were obtained from a soil sample from Shanxi province, China in December 2012. Metarhizium sp. XZ2431 and Geomyces auratus were obtained from soil samples from Guizhou province, China in July 2014. Ilyonectria rufa was obtained from Tibet in August 2011.Media and Solutions

[0432] YP + 2% glucose medium was composed of 1% yeast extract, 2% peptone and 2% glucose.

[0433] YP + 2% maltodextrin medium was composed of 1% yeast extract, 2% peptone and 2% maltodextrin.

[0434] PDA agar plates were composed of potato infusion (potato infusion was made by boiling 300 g of sliced (washed but unpeeled) potatoes in water for 30 minutes and then decanting or straining the broth through cheesecloth. Distilled water was then added until the total volume of the suspension was one liter, followed by 20 g of dextrose and 20 g of agar powder. The medium was sterilized by autoclaving at 15 psi for 15 minutes (Bacteriological Analytical Manual, 8th Edition, Revision A, 1998).

[0435] LB plates were composed of 10 g of Bacto-Tryptone, 5 g of yeast extract, 10 g of sodium chloride, 15 g of Bacto-agar, and deionized water to 1 liter.

[0436] LB medium was composed of 10 g of Bacto-Tryptone, 5 g of yeast extract, 10 g of sodium chloride, and deionized water to 1 liter.

[0437] COVE sucrose plates were composed of 342 g of sucrose, 20 g of agar powder, 20 ml of COVE salts solution, and deionized water to 1 liter. The medium was sterilized by autoclaving at 15 psi for 15 minutes (Bacteriological Analytical Manual, 8th Edition, Revision A, 1998). The medium was cooled to 60°C and 10 mM acetamide, 15 mM CsCl, TRITON ®< X-100 (50 µl / 500 ml) were added.

[0438] COVE salts solution was composed of 26 g of MgSO4•7H2O, 26 g of KCL, 26 g of KH2PO4, 50 ml of COVE trace metals solution, and deionized water to 1 liter.

[0439] COVE trace metals solution was composed of 0.04 g of Na2B4O7•10H2O, 0.4 g of CuSO4•5H2O, 1.2 g of FeSO4•7H2O, 0.7 g of MnSO4•H2O, 0.8 g of Na2MoO4•2H2O, 10 g of ZnSO4•7H2O, and deionized water to 1 liter.

[0440] Dap-4C medium was composed of 20 g Dextrose, 10 g Maltose, 11 g MgSO4.7H2O, 1 g KH2PO4, 2 g Citric Acid, 5.2 g K3PO4.H2O, 0.5 g Yeast Extract (Difco), 1 ml Dowfax 63N10 (Dow Chemical Company), 0.5 ml KU6 trace metals solution, 2.5 g CaCO3, and deionized water to 1 liter. The medium was sterilized by autoclaving at 15 psi for 15 minutes (Bacteriological Analytical Manual, 8th Edition, Revision A, 1998). Before use, Dap-4C medium was added 3.5 ml sterile 50 % (NH4)2HPO4 and 5 ml sterile 20 % Lactic Acid per 150 ml medium.

[0441] Dap-2C medium was composed of 20 g maltodextrin, 11 g MgSO4.7H2O, 1 g KH2PO4, 2 g Citric Acid, 5.2 g K3PO4.H2O, 0.5 g Yeast Extract (Difco), 1 ml Dowfax 63N10 (Dow Chemical Company), 0.5 ml KU6 trace metals solution, 2.5 g CaCO3, and deionized water to 1 liter. The medium was sterilized by autoclaving at 15 psi for 15 minutes (Bacteriological Analytical Manual, 8th Edition, Revision A, 1998). Before use, Dap-4C medium was added 3.5 ml sterile 50 % (NH4)2HPO4 and 5 ml sterile 20 % Lactic Acid per 150 ml medium.

[0442] KU6 trace metals solution was composed of 0.13 g NiCl2, 2.5 g CuSO4.5H2O, 13.9 g FeSO4.7H2O, 8.45 g MnSO4.H2O, 6.8 g ZnCl2, 3g Citric Acid, and deionized water to 1 liter.

[0443] PDA medium was composed of 39 g of potato dextrose agar and deionized water to 1 liter.

[0444] Horikoshi medium contained 10 g of glucose, 5 g of peptone, 5 g of yeast extract, 1 g of K2HPO4, 0.2 g of MgSO4 7H2O, 15 g of agar in 900ml of distilled water. Autoclave at 121°C for 15 minutes. After autoclaving, aseptically add 100.0 ml of sterile 10% Na2CO3 to the medium. Adjust for final pH of 10.0.

[0445] YPM medium contained 1% of Yeast extract, 2% of Peptone and 2% of Maltose.

[0446] Selective medium was composed of 342 g of sucrose, 20ml of salt solution, 20 g of agar.

[0447] Salt solution was composed of 26g of KCI, 26g of MgSO4 7H2O, 76g of KH2PO4, 50ml of trace element solution, in water with final volume of 1L.

[0448] Trace element solution was composed of 400mg of Na2B4O7 10H2O, 400mg of CuSO4 5H2O, 800mg of FeSO4 7H2O, 800mg of MnSO4 2H2O, 800mg of Na2MoO4 2H2O, 8g of ZnSO4 7H2O in water with final volume of 1L.

[0449] Slant medium was composed of 30 g of sucrose, 20ml of salt solution, 20 g of agar.Example 1: Expression of the GH24 lysozyme from Trichophaea saccata

[0450] The fungal strain was cultivated in 100 ml of YP + 2% glucose medium in 1000 ml Erlenmeyer shake flasks for 5 days at 20°C. Mycelia were harvested from the flasks by filtration of the medium through a Buchner vacuum funnel lined with MIRACLOTH ®< (EMD Millipore, Billerica, MA, USA). Mycelia were frozen in liquid nitrogen and stored at -80°C until further use. Genomic DNA was isolated using a DNEASY ®< Plant Maxi Kit (QIAGEN GMBH, Hilden Germany) according to the manufacturer's instructions.

[0451] Genomic sequence information was generated by Illumina MySeq (Illumina Inc., San Diego, CA). The polypeptide coding sequence for the entire coding region was cloned from Trichophaea saccata CBS804.70 genomic DNA by PCR using the primers F-80470 and R-80470 (SEQ ID NO: 258 and SEQ ID NO: 259 respectively) as described below. 5'- ACACAACTGGGGATCCACCATGCACGCTCTCACCCTTCT -3' (SEQ ID NO: 258) 5'- CTAGATCTCGAGAAGCTTTTAGCACTTGGGAGGGTGGG -3' (SEQ ID NO: 259)

[0452] Bold letters represent Trichophaea saccata enzyme coding sequence. Restriction sites are underlined. The sequence to the left of the restriction sites is homologous to the insertion sites of pDau109 (WO 2005 / 042735).

[0453] Extensor HIFI PCR mix, 2x concentration (Thermo Scientific cat no AB-0795) was used for experiment.

[0454] The amplification reaction (25 µl) was performed according to the manufacturer's instructions (Thermo Scientific cat no AB-0795) with the following final concentrations: PCR mix: 0.5 µM Primer F-80470 0.5 µM Primer R-80470 12.5 µl Extensor HIFI PCR mix, 2x conc. 11.0 µl H2O 10 ng of Trichophaea saccata CBS804.70 genomic DNA.

[0455] The PCR reaction was incubated in a DYAD ®< Dual-Block Thermal Cycler (BioRad, USA) programmed for 1 cycle at 94°C for 30 seconds; 30 cycles each at 94°C for 30 seconds, 52°C for 30 seconds and 68°C for 60 seconds followed by 1 cycle at 68°C for 6 minutes. Samples were cooled to 10°C before removal and further processing.

[0456] Three µl of the PCR reaction were analyzed by 1% agarose gel electrophoresis using 40 mM Tris base, 20 mM sodium acetate, 1 mM disodium EDTA (TAE) buffer. A major band of about 946 bp was observed. The remaining PCR reaction was purified directly with an ILLUSTRA ™< GFX ™< PCR DNA and Gel Band Purification Kit (GE Healthcare, Piscataway, NJ, USA) according to the manufacturer's instructions.

[0457] Two µg of plasmid pDau109 was digested with Bam HI and Hind III and the digested plasmid was run on a 1% agarose gel using 50 mM Tris base-50 mM boric acid-1 mM disodium EDTA (TBE) buffer in order to remove the stuffer fragment from the restricted plasmid. The bands were visualized by the addition of SYBR ®< Safe DNA gel stain (Life Technologies Corporation, Grand Island, NY, USA) and use of a 470 nm wavelength transilluminator. The band corresponding to the restricted plasmid was excised and purified using an ILLUSTRA ™< GFX ™< PCR DNA and Gel Band Purification Kit. The plasmid was eluted into 10 mM Tris pH 8.0 and its concentration adjusted to 20 ng per µl. An IN-FUSION ®< PCR Cloning Kit (Clontech Laboratories, Inc., Mountain View, CA, USA) was used to clone the 983 bp PCR fragment into pDau109 digested with Bam HI and Hind III (20 ng). The IN-FUSION ®< total reaction volume was 10 µl. The IN-FUSION ®< total reaction volume was 10 µl. The IN-FUSION ®< reaction was transformed into FUSION-BLUE ™< E. coli cells (Clontech Laboratories, Inc., Mountain View, CA, USA) according to the manufacturer's protocol and plated onto LB agar plates supplemented with 50 µg of ampicillin per ml. After incubation overnight at 37°C, transformant colonies were observed growing under selection on the LB plates supplemented with 50 µg of ampicillin per ml.

[0458] Several colonies were selected for analysis by colony PCR using the pDau109 vector primers described below. Four colonies were transferred from the LB plates supplemented with 50 µg of ampicillin per ml with a yellow inoculation pin (Nunc A / S, Denmark) to new LB plates supplemented with 50 µg of ampicillin per ml and incubated overnight at 37°C. Primer 8653: 5'-GCAAGGGATGCCATGCTTGG-3' (SEQ ID NO: 260) Primer 8654: 5'-CATATAACCAATTGCCCTC-3' (SEQ ID NO: 261)

[0459] Each of the three colonies were transferred directly into 200 µl PCR tubes composed of 5 µl of 2X Extensor HIFI PCR mix, (Thermo Fisher Scientific, Rockford, IL, USA), 0.5 µl of primer 8653 (10 pm / µl), 0.5 µl of primer 8654 (10 pm / µl), and 4 µl of deionized water. Each colony PCR was incubated in a DYAD ®< Dual-Block Thermal Cycler programmed for 1 cycle at 94°C for 60 seconds; 30 cycles each at 95°C for 30 seconds, 60°C for 45 seconds, 72°C for 60 seconds, 68°C for 10 minutes, and 10°C for 10 minutes.

[0460] Three µl of each completed PCR reaction were submitted to 1% agarose gel electrophoresis using TAE buffer. All four E. coli transformants showed a PCR band of about 980 bp. Plasmid DNA was isolated from each of the four colonies using a QlAprep Spin Miniprep Kit (QIAGEN GMBH, Hilden Germany). The resulting plasmid DNA was sequenced with primers 8653 and 8654 (SEQ ID NO: 260 and 261) using an Applied Biosystems Model 3730 Automated DNA Sequencer using version 3.1 BIG-DYE ™< terminator chemistry (Applied Biosystems, Inc., Foster City, CA, USA). One plasmid, designated pKKSC0312-2, was chosen for transforming Aspergillus oryzae MT3568. A. oryzae MT3568 is an amdS (acetamidase) disrupted gene derivative of Aspergillus oryzae JaL355 (WO 2002 / 40694) in which pyrG auxotrophy was restored by inactivating the A. oryzae amdS gene. Protoplasts of A. oryzae MT3568 were prepared according to the method described in European Patent, EP0238023, pages 14-15.

[0461] E. coli 3701 containing pKKSC0312-2 was grown overnight according to the manufacturer's instructions (Genomed) and plasmid DNA of pKKSC0312-2 was isolated using a Plasmid Midi Kit (Genomed JETquick kit, cat.nr. 400250, GENOMED GmbH, Germany) according to the manufacturer's instructions. The purified plasmid DNA was transformed into Aspergillus oryzae MT3568. A. oryzae MT3568 protoplasts were prepared according to the method of Christensen et al., 1988, Bio / Technology 6: 1419-1422. The selection plates consisted of COVE sucrose with +10 mM acetamide +15 mM CsCl + TRITON ®< X-100 (50 µl / 500 ml). The plates were incubated at 37°C. Briefly, 8 µl of plasmid DNA representing 3ugs of DNA was added to 100 µl MT3568 protoplasts. 250 µl of 60% PEG solution was added and the tubes were gently mixed and incubate at 37° for 30 minutes. The mix was added to 10 ml of pre melted Cove top agarose (The top agarose melted and then the temperature equilibrated to 40 C in a warm water bath before being added to the protoplast mixture). The combined mixture was then plated on two Cove-sucrose selection petri plates with 10mM Acetamide. The plates were incubated at 37°C for 4 days. Single Aspergillus transformed colonies were identified by growth on plates using the selection Acetimide as a carbon source. Each of the four A. oryzae transformants were inoculated into 750 µl of YP medium supplemented with 2% glucose and also 750 µl of 2% maltodextrin and also DAP4C in 96 well deep plates and incubated at 37°C stationary for 4 days. At the same time the four transformants were restreaked on COVE-2 sucrose agar medium.

[0462] Culture broth from the Aspergillus oryzae transformants were then analyzed for production of the GH24 polypeptide by SDS-PAGE using NUPAGE ®< 10% Bis-Tris SDS gels (Invitrogen, Carlsbad, CA, USA) according to the manufacturer's recommendations. A protein band at approximately 27 kDa was observed for each of the Aspergillus oryzae transformants. One A. oryzae transformant was cultivated in 1000 ml Erlenmeyer shake flasks containing 100 ml of DAP4C medium at 26°C for 4 days with agitation at 85 rpm and purified as described in example 2.Example 2: Purification of the GH24 lysozyme from Trichophaea saccata

[0463] The fermentation supernatant with the GH24 lysozyme was filtered through a Fast PES Bottle top filter with a 0.22 µm cut-off. The resulting solution was diafiltrated with 5 mM Na-acetate, pH 4.5 and concentrated (volume reduced by a factor of 10) on an Ultra Filtration Unit (Sartorius) with a 10 kDa cut-off membrane.

[0464] After pretreatment about 275 mL of the lysozyme containing solution was purified by chromatography on SP Sepharose (approximately 60 mL) in a XK26 column eluting the bound lysozyme with 0 to 100% gradient of buffer A (50 mM Na-acetate pH 4.5) and buffer B (50 mM Na-acetate + 1 M NaCl pH 4.5) over 10 column volumes. The fractions from the column were pooled based on the chromatogram (absorption at 280 and 254 nm) and SDS-PAGE analysis.

[0465] The molecular weight, as estimated from SDS-PAGE, was approximately 27 kDa and the purity was > 90%.Characteristics for the GH24 lysozyme from Trichophaea saccata

[0466] Determination of the N-terminal sequence was: YPVKTDL.

[0467] The calculated molecular weight from this mature sequence is 26205.5Da (M+H) +< .

[0468] The molecular weight determined by intact molecular weight analysis was 26205.3 Da. (M+H) +< . The mature sequence (from EDMAN N-terminal sequencing data, intact molecular weight analysis and proteomic analysis with 92% amino acid coverage): Example 3: Expression of the LED alone from Trichophaea saccata

[0469] In order to establish the properties of the newly defined lysozyme enhancing domain, an expression construct in which the N-terminal portion of the GH24 polypeptide coding sequence from example 1 was expressed.

[0470] The amino acid sequence shown below represents the signal peptide and the NZ4 domain. The signal peptide is underlined.

[0471] The DNA representing SEQ ID NO: 272 is shown below as SEQ ID NO: 271 wherein the signal peptide is underlined.

[0472] PCR primers were designed in order to amplify the DNA fragment SEQ ID NO: 271 from pKKSC0312-2 of example 1. The forward primer from example 1 (SEQ ID NO: 258) could be reused. For the reverse primer, a TAA stop codon was added to the DNA sequence of the above and then the Infusion cloning site for the Hindlll site was added to create the primer below: AGATCTCGAGAAGCTTATACCGCACTTGGTGGTGAAA (SEQ ID NO: 274).

[0473] The amplification reaction (25 µl) was performed according example 1. The 270 base pair PCR product was cloned into vector pDau222 also as described in example 1.

[0474] Culture broth from the Aspergillus oryzae transformants were then analyzed for production of the LED polypeptide by SDS-PAGE using NUPAGE ®< 8% Bis-Tris SDS gels (Invitrogen, Carlsbad, CA, USA) according to the manufacturer. A band at approximately 14 kDa was observed for each of the Aspergillus oryzae transformants. The actual size appears larger than the predicted size of 8.4 kDa possibly because of post translational modification. One A. oryzae transformant producing the LED polypeptide was cultivated in 1000 ml Erlenmeyer shake flasks containing 100 ml of DAP4C medium at 30°C for 4 days with agitation at 150 rpm and purified as described in example 4.Example 4: Expression of the LED alone from Trichophaea saccata

[0475] The fermentation supernatant with the LED alone from Trichophaea saccata was filtered through a Fast PES Bottle top filter with a 0.22 µm cut-off. The resulting solution was desalted on a G25 Sephadex column (approximately 500 mL) into 50 mM Na-acetate, pH 4.5. Following this the protein containing solution (approximately 125 ml) was purified by chromatography on SP Sepharose (approximately 50 mL) in a XK26 column eluting the bound lysozyme with 0 to 100% gradient of buffer A (50 mM Na-acetate pH 4.5) and buffer B (50 mM Na-acetate + 1 M NaCl pH 4.5) over 10 column volumes. The fractions from the column were pooled based on the chromatogram (absorption at 280 and 254 nm) and SDS-PAGE analysis.

[0476] The molecular weight, as estimated from SDS-PAGE, was 6-10 kDa and the purity was > 95%. The calculated molecular weight from this mature sequence is 7906.64 Da. The mature sequence (from proteomic analysis with 97% amino acid coverage) was determined to be: Example 5: Expression of the GH24 domain of Trichophaea saccata CBS804.70

[0477] In order to determine if the lysozyme enhancing domain has functional or enhancing properties for the associated GH24 lysozyme, a construct was cloned and protein expressed in which the LED had been removed from the GH24 lysozyme. The construct was made as follows: A synthetic gene was created as described below.

[0478] Based on multiple sequence alignments, QCVG or similar appears to be fairly well conserved in the GH24 fungal lysozymes without the LED domain. Therefor the signal and the sequence downstream QCVG sequence from SEQ ID NO: 279 (GH24 from Acremonium acalophilum) was used in part of the construct. This peptide sequence was then added directly to the mature peptide fragment containing only the GH24 lysozyme region of SEQ ID NO: 257 resulting in the amino acid sequence below:

[0479] A synthetic DNA (SEQ ID NO: 268) that had been codon optimised for expression in Aspergillus oryzae was ordered from GeneArt ®< Gene Synthesis, Life Technologies. The synthetic DNA conveniently had BamHI and Hindlll restriction sites added to the ends so as to make a BamHI-Hindlll restricted fragment compatible with the cloning vector pDau109 used in example 1.

[0480] The fragment was received from GeneArt in kanamycin resistant vector pMK and the plasmid was dissolved DNA in 50uls in 10mM Tris, pH7.5. 20uls of the mixture with BamHI-Hindlll according to the protocol below: Plasmid20 µlCut smart buffer: 10x #B7204S4.0 µlMilli-Q H 2 O:14.0 µlHind III HF: NEB #R3104S1 µlBamH HF: NEB #R3136S1 µlTotal volume40 µl

[0481] The reaction was incubated for 3 hours at 37 degrees C. The restriction digest was purified with the GFX PCR DNA and Gel Band purification Kit (Cat.no28-9034-71) from GE Healthcare and eluted in 40uls 10mM Tris, pH7.5. The purified restriction digest was then used in a simple ligation with BamHI-Hindlll restricted pDau109 (example 1) according to the T4 DNA ligase manufacturer's instructions (New England Biolabs., www.neb.com).

[0482] 2.5µl of the 10µl ligation was used to transform 25µl Stellar ™< (Life Technologies) Competent cells according to the manufacturer's instructions and the treated cells plated on LB agar plates with 50mg / ml ampicillin. Colony PCR of select tranformants was performed according to example 1 and the PCR fragments sequenced. A single plasmid, selected as being PCR error free, was transformed into Aspergillus oryzae MT3568 according to example 1. Among the several transformants that produced the secreted product of about 20 kDa, one was chosen and cultivated in 1000 ml Erlenmeyer shake flasks containing 100 ml of DAP4C medium at 30°C for 4 days with agitation at 150 rpm and purified as described in example 6.Example 6: Purification of the GH24 domain of Trichophaea saccata CBS804.70

[0483] The fermentation supernatant with the GH24 domain was filtered through a Fast PES Bottle top filter with a 0.22 µm cut-off. The resulting solution was diafiltrated with 50 mM Na-acetate, pH 4.5 on an Ultra Filtration Unit (Sartorius) with a 10 kDa cut-off membrane.

[0484] After pretreatment about 500 mL of the lysozyme containing solution was purified by chromatography on SP Sepharose (approximately 50 mL) in a XK26 column eluting the bound protein with 0 to 100% gradient of buffer A (50 mM Na-acetate pH 4.5) and buffer B (50 mM Na-acetate + 1 M NaCl pH 4.5) over 10 column volumes. The fractions from the column were pooled based on the chromatogram (absorption at 280 and 254 nm) and SDS-PAGE analysis.

[0485] The molecular weight, as estimated from SDS-PAGE, was approximately 20 kDa and the purity was > 90%.

[0486] The calculated molecular weight from this mature sequence is 18182.86 Da. The mature sequence (from proteomic analysis with 72% amino acid coverage) was determined to be: Example 7: Cloning and expression of GH24 lysozyme from Trichoderma harzianum A00611.

[0487] Trichoderma harzianum, originally named A00611 was deposited at the Centraalbureau voor Schimmelcultures, Ultrecht, Netherlands under the code: CBS223.93. Trichoderma harzianum A00611 was grown on Potato Dextrose Agar at 26 degrees C for several days. Mycelia was harvested directly from the inoculated PDA agar plate and the DNA prepared as in example 1.

[0488] The polypeptide coding sequence for the entire coding region was cloned from Trichoderma harzianum A00611 genomic DNA by PCR using primers SEQ ID NO: 275 and SEQ ID NO: 276 as given below. F 5'-ACACAACTGGGGATCCACCATGAAGACTGCCTTTGCTGC -3' SEQ ID NO: 275 R 5'-AGATCTCGAGAAGCTTATCACTGGCACTTTGGATAGGC -3' SEQ ID NO: 276

[0489] Bold letters represent Trichoderma harzianum enzyme coding sequence. Restriction sites are underlined. The sequence to the left of the restriction sites is homologous to the insertion sites of pDau109 (WO 2005 / 042735).

[0490] Cloning of the 800bp PCR fragment, transformation into Aspergillus oryzae and production of culture fluid for purification of the GH24 lysozyme was performed according to example 1.

[0491] A band at approximately 27 kDa was observed for each of the Aspergillus oryzae transformants. One A. oryzae transformant producing the polypeptide was chosen and cultivated in 1000 ml Erlenmeyer shake flasks containing 100 ml of DAP4C medium at 30°C for 4 days with agitation at 150 rpm and purified as described in example 8.Example 8: Purification of the GH24 lysozyme from Trichoderma harzianum A00611.

[0492] The fermentation supernatant with the GH24 lysozyme from Trichoderma harzianum A00611 was filtered through a Fast PES Bottle top filter with a 0.22 µm cut-off. About one liter was obtained and the pH was adjusted to 4.5 with diluted acetic acid. The sample was diluted to two liters with Milli-Q water.

[0493] After pretreatment about 1000 mL of the lysozyme containing solution was purified by chromatography on SP Sepharose (approximately 30 mL) in a XK26 column eluting the bound lysozyme with 0 to 100% gradient of buffer A (50 mM Na-acetate pH 4.5) and buffer B (50 mM Na-acetate + 1 M NaCl pH 4.5) over 10 column volumes. The fractions from the column were pooled based on the chromatogram (absorption at 280 and 254 nm) and SDS-PAGE analysis.

[0494] The molecular weight, as estimated from SDS-PAGE, was approximately 27 kDa and the purity was > 90%.Example 9: Cloning and expression of the GH24 lysozyme from Chaetomium thermophilum var. thermophilum

[0495] Chaetomium thermophilum var. thermophilum was purchased from Centraalbureau voor Schimmelcultures, Ultrecht, Netherlands under the code CBS144.50. The strain was grown on Potato Dextrose Agar at 37 degrees C for several days. Mycelia was harvested directly from the inoculated PDA agar plate and the DNA prepared as in example 1.

[0496] The polypeptide coding sequence for the entire coding region was cloned from Chaetomium thermophilum CBS144.50 genomic DNA by PCR using primers SEQ ID NO: 277 and SEQ ID NO: 278 as given below. F 5'- ACACAACTGGGGATCCACCATGAAGTTCGCCATCCTCGC -3' SEQ ID NO: 277 R 5'- AGATCTCGAGAAGCTTATCAGCACTTAACAGGAAGAGCC -3' SEQ ID NO: 278

[0497] Bold letters represent GH24 enzyme coding sequence. Restriction sites are underlined. The sequence to the left of the restriction sites is homologous to the insertion sites of pDau109 (WO 2005 / 042735).

[0498] Cloning of the 960bp PCR fragment, transformation into Aspergillus oryzae and production of culture fluid for purification of the GH24 lysozyme was performed according to example 1. A band at approximately 26 kDa was observed for each of the Aspergillus oryzae transformants. One A. oryzae transformant producing the polypeptide was chosen and cultivated in 1000 ml Erlenmeyer shake flasks containing 100 ml of DAP4C medium at 30°C for 4 days with agitation at 150 rpm and purified as described in example 10.Example 10: Purification of the GH24 lysozyme from Chaetomium thermophilum var. thermophilum

[0499] The fermentation supernatant with the GH24 lysozyme from Chaetomium thermophilum var. thermophilum was filtered through a Fast PES Bottle top filter with a 0.22 µm cut-off. The resulting solution was diafiltrated with 50 mM Na-acetate, pH 4.5 and concentrated (volume reduced by a factor of 10) on an Ultra Filtration Unit (Sartorius) with a 10 kDa cut-off membrane.

[0500] After pretreatment about 300 mL of the lysozyme containing solution was purified by chromatography on SP Sepharose (approximately 60 mL) in a XK26 column eluting the bound lysozyme with 0 to 100% gradient of buffer A (50 mM Na-acetate pH 4.5) and buffer B (50 mM Na-acetate + 1 M NaCl pH 4.5) over 10 column volumes. The fractions from the column were pooled based on the chromatogram (absorption at 280 and 254 nm) and SDS-PAGE analysis.

[0501] The molecular weight, as estimated from SDS-PAGE, was approximately 27 kDa and the purity was > 90%.Example 11: Determination of Lysozyme Activity

[0502] Lysozyme activity was determined by measuring the decrease (drop) in absorbance / optical density of a solution of resuspended Micrococcus lysodeikticus ATTC No. 4698 (Sigma-Aldrich M3770) or Exiguobacterium undea (DSM14481) measured in a spectrophotometer at 540 nm.Preparation of Micrococcus lysodeikticus substrate

[0503] Before use the cells were resuspended in citric acid - phosphate buffer pH 6.5 to a concentration of 0.5 mg cells / mL and the optical density (OD) at 540 nm was measured. The cell suspension was then adjusted so that the cell concentration equalled an OD540 = 1.0. The adjusted cell suspension was then stored cold before use. Resuspended cells were used within 4 hours.Preparation of dried cells of Exiquobacterium undae substrate

[0504] A culture of E. undae (DSM14481) was grown in 100 mL LB medium (Fluka 51208, 25 g / L) in a 500 mL shake-flask at 30°C, 250 rpm overnight. The overnight culture was then centrifuged at 20°C and 5000g for 10 minutes, and the pellet was then washed twice with sterile milliQ water, and resuspended in Milli-Q water. The washed cells were centrifuged for 1 minute at 13000 rpm and as much as possible of the supernatant was decanted. The washed cells were dried in a vacuum centrifuge for 1 hour. The cell pellet was resuspended in citric acid - phosphate buffer pH 4, 5 or 6 so that the optical density (OD) at 540nm = 1.Measurement of lysozyme antimicrobial activity in the turbidity assay

[0505] The lysozyme sample to be measured was diluted to a concentration of 100-200 mg enzyme protein / L in citr...

Claims

1. An animal feed or animal feed additive comprising one or more polypeptides having lysozyme activity, wherein the polypeptide comprises one or more GH24 catalytic domains and one or more lysozyme enhancing domains and wherein: (a) GH24 catalytic domain gives a domT score of at least 200 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 1 to 122 and hmmbuild software program, and wherein the query is carried out using hmmscan software program with default settings; and (b) the polypeptide comprises one or more lysozyme enhancing domains, wherein the lysozyme enhancing domain gives a domT score of at least 100 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 123 to 251 and hmmbuild software program, and wherein the query is carried out using the hmmscan software program with default settings; wherein: (a) the GH24 catalytic domain comprises one or more motif I: [TAS][VIL][GAC][YFI]GHX[CAYIV] (SEQ ID NO: 252) and / or one or more motif II [LV][NDST]XN[QE][YFW][GASND]ALXS[WFLY]X[FY]N (SEQ ID NO: 253); and (b) the lysozyme enhancing domain comprises one or more motif III: [CGY][YF][VIL][ASTP][DG]X[YF][VIT]X[TS][GAN] (SEQ ID NO: 254), wherein the lysozyme enhancing domain has at least 85% sequence identity to SEQ ID NO: 180, wherein the GH24 catalytic domain has at least 85% sequence identity to SEQ ID NO: 14, and wherein the polypeptide having lysozyme activity has at least 50% of the antimicrobial activity of SEQ ID NO: 257 against Clostridium perfringens using the conditions 50% MHB (Mueller-Hinton broth), pH 6.

2. The animal feed or animal feed additive of claim 1, wherein the polypeptide is obtained or obtainable from the kingdom Fungi, preferably the phylum Ascomycota.

3. An isolated polypeptide having lysozyme activity, wherein the polypeptide comprises one or more GH24 catalytic domains and one or more lysozyme enhancing domains and wherein: (a) GH24 catalytic domain gives a domT score of at least 200 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 1 to 122 and hmmbuild software program, and wherein the query is carried out using hmmscan software program with default settings; and (b) the polypeptide comprises one or more lysozyme enhancing domains, wherein the lysozyme enhancing domain gives a domT score of at least 100 when queried using a Profile Hidden Markov Model prepared using SEQ ID NOs: 123 to 251 and hmmbuild software program, and wherein the query is carried out using the hmmscan software program with default settings; wherein: (a) the GH24 catalytic domain comprises one or more motif I: [TAS][VIL][GAC][YFI]GHX[CAYIV] (SEQ ID NO: 252) and / or one or more motif II [LV][NDST]XN[QE][YFW][GASND]ALXS[WFLY]X[FY]N (SEQ ID NO: 253); and (b) the lysozyme enhancing domain comprises one or more motif III: [CGY][YF][VIL][ASTP][DG]X[YF][VIT]X[TS][GAN] (SEQ ID NO: 254), and wherein the polypeptides are selected from the group consisting of: (a) a polypeptide having at least 80%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257; (b) a polypeptide having at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267; (d) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294; (e) a polypeptide having at least 82%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297; (f) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300; (g) a polypeptide having at least 80%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303; (h) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306; (s) a variant of SEQ ID NO: 257, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 positions; and (t) a variant of SEQ ID NO: 267, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 positions; and (v) a variant of SEQ ID NO: 294, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 or 30 positions; (w) a variant of SEQ ID NO: 297, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (x) a variant of SEQ ID NO: 300, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (y) a variant of SEQ ID NO: 303, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (z) a variant of SEQ ID NO: 306, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; and (aa) a fragment of the polypeptide of (a), (b), (d), (e), (f), (g), (h), (s), (t), (v), (w), (x), (y) or (z) that has lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids.

4. The polypeptide according to claim 3, wherein the polypeptide comprises or consists of amino acids 1 to 245 of SEQ ID NO: 257, amino acids 1 to 248 of SEQ ID NO: 267, amino acids 1 to 245 of SEQ ID NO: 291, amino acids 1 to 249 of SEQ ID NO: 294, amino acids 1 to 245 of SEQ ID NO: 297, amino acids 1 to 247 of SEQ ID NO: 300, amino acids 1 to 250 of SEQ ID NO:303 or amino acids 1 to 240 of SEQ ID NO: 306.

5. A composition comprising one or more polypeptides of any of claims 3 to 4 and one or more formulating agents.

6. The animal feed or animal feed additive of any of claims 1 or 2 or the composition of claim 5 further comprising one or more components selected from the list consisting of: one or more additional enzymes; one or more microbes; one or more vitamins; one or more minerals; one or more amino acids; and one or more other feed ingredients.

7. Use of the polypeptide of any of claims 3 to 4, animal feed or animal feed additive of claims 1, 2, 6 or 10 or the composition of claim 5: in animal feed; in animal feed additives; in the preparation of a composition for use in animal feed; and / or for improving one or more performance parameters in an animal.

8. The polypeptide of any of claims 3 to 4, animal feed or animal feed additive of claims 1, 2, 6 or 10 or the composition of claim 5 for use as a medicament.

9. The polypeptide of any of claims 3 to 4, animal feed or animal feed additive of claims 1, 2, 6 or 10 or the composition of claim 5 for use in the treatment of Clostridium perfringens infection in an animal; and / or for use in the treatment of necrotic enteritis in an animal.

10. The animal feed or animal feed additive of claim 1, wherein the one or more polypeptides having lysozyme activity is selected from the group consisting of: (a) a polypeptide having at least 80%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257; (b) a polypeptide having at least 95%, e.g., at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 267; (d) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 294; (e) a polypeptide having at least 82%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 297; (f) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 300; (g) a polypeptide having at least 80%, e.g., at least 81%, at least 82%, at least 83%, at least 84%, at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 303; (h) a polypeptide having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 306; (s) a variant of SEQ ID NO: 257, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48 or 49 positions; and (t) a variant of SEQ ID NO: 267, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 positions; and (v) a variant of SEQ ID NO: 294, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 or 30 positions; (w) a variant of SEQ ID NO: 297, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (x) a variant of SEQ ID NO: 300, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (y) a variant of SEQ ID NO: 303, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; (z) a variant of SEQ ID NO: 306, wherein the variant has lysozyme activity and comprises one or more substitutions and / or one or more deletions and / or one or more insertions or any combination thereof in 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, or 30 positions; and (aa) a fragment of the polypeptide of (a), (b), (d), (e), (f), (g), (h), (s), (t), (v), (w), (x), (y) or (z) that has lysozyme activity wherein the fragment comprises at least 230 amino acids, at least 235 amino acids or at least 240 amino acids.

11. An animal feed according to claim 1, comprising one or more polypeptides having lysozyme activity, wherein the polypeptide having lysozyme activity has at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257.

12. The animal feed additive according to claim 11, wherein the polypeptide having lysozyme activity has (a) the GH24 catalytic domain comprises one or more motif I: [TAS][VIL][GAC][YFI]GHX[CAYIV] (SEQ ID NO: 252) and / or one or more motif II [LV][NDST]XN[QE][YFW][GASND]ALXS[WFLY]X[FY]N (SEQ ID NO: 253); and (b) the lysozyme enhancing domain comprises one or more motif III: [CGY][YF][VIL][ASTP][DG]X[YF][VIT]X[TS][GAN] (SEQ ID NO: 254).

13. An isolated polypeptide having lysozyme activity according to claim 3, having at least 85%, at least 86%, at least 87%, at least 88%, at least 89%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% sequence identity to SEQ ID NO: 257.