Feed additive for improving egg shell quality of laying hens and preparation method thereof

Abstract

The invention relates to the technical field of feed additives, in particular to a feed additive for improving egg shell quality of laying hens and a preparation method thereof. The feed additive for improving the egg shell quality of the laying hens is prepared from the following components in parts by weight: 2 to 4 parts of taurine, 3 to 5 parts of radix angelicae sinensis, 3 to 5 parts of herba leonuri, 1 to 3 parts of iron glycinate, 2 to 3 parts of manganese glycinate, 0.5 to 1 part of zinc methionine, 0.1 to 0.4 part of selenium yeast, 0.1 to 0.2 part of 25-hydroxyD3, 3 to 5 parts of bile acid, 2 to 5 parts of enterococcus faecium, 1 to 2 parts of yeast cell wall polysaccharide, 2 parts of compound enzyme and 20 to 30 parts of montmorillonite. 40-50 parts of stone powder, 1 part of ethoxyquin and 10 parts of rice husk powder.

Description

Technical Field

[0001] This invention relates to the field of feed additive technology, and in particular to a feed additive for improving eggshell quality and its preparation method. Background Technology

[0002] In egg-laying hen farming, calcium and phosphorus deficiency or imbalance can affect eggshell quality, resulting in soft-shelled or thin-shelled eggs; vitamin D3 deficiency can affect calcium absorption; manganese deficiency can increase eggshell brittleness; zinc deficiency can cause sandy-shelled eggs; viral diseases can cause eggshells to lighten in color; bacterial diseases can cause watermarked eggs; high temperature, fright, and other stress responses can affect calcium absorption; and in older chickens (>60 weeks old), the shell gland function declines, resulting in thinner and lighter-colored eggshells. Summary of the Invention

[0003] Therefore, there is a need for a feed additive to improve eggshell quality and its preparation method. This feed additive can promote shell gland development and tissue regeneration, enhance protoporphyrin synthesis and pigment deposition, deepen eggshell color, and make the eggshell red and shiny. Simultaneously, it can enhance intestinal calcium absorption, strengthen eggshell strength, and reduce the incidence of eggshell defects such as soft-shelled, sandy-shelled, and thin-shelled eggs. Furthermore, it regulates the balance of intestinal microbiota, improves immunity, regulates endocrine function, and enhances stress resistance. It also promotes ovarian function, increases egg production rate, increases egg weight, prolongs the peak laying period, and improves feed utilization.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A feed additive for improving eggshell quality comprises the following components in parts by weight: taurine 2-4 parts, angelica 3-5 parts, motherwort 3-5 parts, glycine iron 1-3 parts, glycine manganese 2-3 parts, methionine zinc 0.5-1 part, yeast selenium 0.1-0.4 parts, 25-hydroxyD3 0.1-0.2 parts, bile acids 3-5 parts, Enterococcus faecalis 2-5 parts, yeast cell wall polysaccharide 1-2 parts, montmorillonite 20-30 parts, limestone powder 40-50 parts, ethoxyquinoline 1 part, and rice husk powder 10 parts.

[0005] Further optimization of this technical solution also includes 1-2 portions of a complex enzyme preparation for laying hens.

[0006] This technical solution is further optimized, wherein the egg-laying hen compound enzyme preparation includes xylanase, β-mannanase, β-glucanase, cellulase, amylase, protease, lipase, and phytase.

[0007] This technical solution is further optimized, wherein the egg-laying hen compound enzyme preparation includes 2 million U of xylanase, 5 million U of β-mannanase, 2 million U of β-glucanase, 200,000 U of cellulase, 500,000 U of amylase, 1 million U of protease, 3.4 million U of lipase, and 13.5 million U of phytase.

[0008] Further optimization of this technical solution includes the following additives in parts by weight: 2 parts taurine, 3 parts angelica, 3 parts motherwort, 2 parts glycine iron, 2 parts glycine manganese, 0.5 parts methionine zinc, 0.1 parts yeast selenium, 0.1 parts 25-hydroxy D3, 20 parts montmorillonite, 3 parts bile acids, 2 parts Enterococcus faecalis, 2 parts compound enzyme, 2 parts yeast cell wall polysaccharide, 50 parts limestone powder, 1 part ethoxyquinoline, and 10 parts rice husk powder.

[0009] A method for preparing a feed additive to improve eggshell quality, characterized by comprising the following steps: S1. Carrier preparation: Screen 20-30 mesh rice husk powder as a carrier; S2. Dilution: Using rice husk powder as a carrier, add 25-hydroxyD3, angelica, motherwort, taurine, bile acid, and ethoxyquinoline in sequence for dilution and use later. S3. Dilution: Using montmorillonite as a carrier, add Enterococcus faecalis, yeast cell wall polysaccharide, and complex enzyme in sequence for later use; S4. Dilution: Using stone powder as a carrier, add glycine iron, glycine manganese, methionine zinc, and yeast selenium in sequence for later use; S5. Mixing: Add all the diluted products from S2, S3, and S4 to the mixer and mix for 3-4 minutes; S6. The mixed finished product shall be packaged and sealed according to specifications and stored in a sealed container.

[0010] In a further optimization of this technical solution, a stainless steel mixer with a coefficient of variation (CV) of <3% and a filling coefficient of >80% is used in step S5.

[0011] In a further optimization of this technical solution, a stainless steel mixer with a coefficient of variation (CV) of <5% and a filling coefficient of >80% is used in step S5.

[0012] Unlike existing technologies, the above technical solution has the following beneficial effects: The premixed feed of this invention can regulate reproductive hormones, relieve reproductive fatigue, promote follicle development, enhance immunity, reduce oviduct inflammation, and prolong the egg-laying cycle; The premixed feed of this invention is designed to reduce calcium and phosphorus nutrient supplementation in laying hens under stress. It effectively supplements vitamin D and trace elements, improving eggshell hardness and toughness. The premixed feed for laying hens of this invention effectively regulates liver and gallbladder function, maintains intestinal health, improves metabolic absorption capacity, and ensures the health of laying hens. The premixed feed of the present invention utilizes the mold adsorption function of montmorillonite and the mold degradation function of compound enzymes and yeast cell wall polysaccharides to remove mold generated in the feed. Detailed Implementation

[0013] To explain in detail the technical content, structural features, objectives and effects of the technical solution, the following detailed description is provided in conjunction with specific embodiments.

[0014] A feed additive for improving eggshell quality comprises the following components in parts by weight: taurine 2-4 parts, angelica 3-5 parts, motherwort 3-5 parts, glycine iron 1-3 parts, glycine manganese 2-3 parts, methionine zinc 0.5-1 part, yeast selenium 0.1-0.4 parts, 25-hydroxyD3 0.1-0.2 parts, bile acids 3-5 parts, Enterococcus faecalis 2-5 parts, yeast cell wall polysaccharide 1-2 parts, montmorillonite 20-30 parts, limestone powder 40-50 parts, ethoxyquinoline 1 part, and rice husk powder 10 parts.

[0015] The feed additive for improving eggshell quality also includes two portions of a compound enzyme preparation for laying hens, which contains 2 million U of xylanase, 5 million U of β-mannanase, 2 million U of β-glucanase, 200,000 U of cellulase, 500,000 U of amylase, 1 million U of protease, 3.4 million U of lipase, and 13.5 million U of phytase.

[0016] The feed additive in this embodiment utilizes taurine to reduce stress response and increase feed intake in laying hens. Taurine, also known as 2-aminoethanesulfonic acid (H2N-CH2-CH2-SO3H), has the ability to resist excessive nerve excitation, alleviate and repair nerve stress-induced damage caused by excessive nerve tension, protect the digestive system, and improve animal appetite and feed intake. Taurine also has the effect of scavenging reactive oxygen free radicals.

[0017] The feed additive in this embodiment utilizes traditional Chinese medicinal herbs such as angelica and motherwort to replenish qi and blood, regulate reproductive hormones, relieve reproductive fatigue, promote follicle development, enhance immunity, reduce fallopian tube inflammation, and prolong the egg-laying cycle.

[0018] Bile acids regulate liver and gallbladder function. Enterococcus faecium maintains intestinal health, improves metabolic absorption, and ensures the health of laying hens. Vitamin 25-hydroxyD3 regulates liver function and promotes calcium absorption. Phytase in the complex enzyme promotes phosphorus absorption.

[0019] The feed additive in this embodiment utilizes the mold adsorption function of montmorillonite and the mold degradation function of compound enzymes and yeast cell wall polysaccharides to remove mold generated in the feed.

[0020] Example 1

[0021] A feed additive for improving eggshell quality comprises the following components in parts by weight: 2 parts taurine, 3 parts angelica, 3 parts motherwort, 2 parts glycine iron, 2 parts glycine manganese, 0.5 parts methionine zinc, 0.1 parts yeast selenium, 0.1 parts 25-hydroxyD3, 20 parts montmorillonite, 3 parts bile acids, 2 parts Enterococcus faecalis, 2 parts compound enzyme, 2 parts yeast cell wall polysaccharide, 50 parts limestone powder, 1 part ethoxyquinoline, 10 parts rice husk powder, and 2 parts layer hen compound enzyme preparation.

[0022] The compound enzyme preparation for laying hens includes xylanase 2 million U, β-mannanase 5 million U, β-glucanase 2 million U, cellulase 200,000 U, amylase 500,000 U, protease 1 million U, lipase 3.4 million U, and phytase 13.5 million U.

[0023] This embodiment defines the content of each component in the premixed feed additive for improving eggshell quality, enabling the feed additive to enhance protoporphyrin synthesis, pigment deposition, intestinal calcium absorption, and regulate intestinal flora balance.

[0024] The trace elements glycine iron, glycine manganese, and methionine zinc in this embodiment were purchased from Hunan Debang Biotechnology Co., Ltd.

[0025] The vitamin 25-hydroxyD3 in this embodiment was purchased from Shandong Haineng Bioengineering Co., Ltd.

[0026] The Angelica sinensis and Leonurus japonicus used in this embodiment were purchased from Wuxi Yingert Biotechnology Co., Ltd.

[0027] The taurine in this embodiment was purchased from Hunan Pufike Biotechnology Co., Ltd.

[0028] The egg-laying hen complex enzyme in this embodiment was purchased from Wuhan Xinhua Yang Biotechnology Co., Ltd.

[0029] The Enterococcus faecalis in this embodiment was purchased from Wuhan Guize Biotechnology Co., Ltd.

[0030] The bile acids in this embodiment were purchased from Shandong Longchang Animal Health Products Co., Ltd.

[0031] The yeast cell wall polysaccharides and yeast selenium used in this embodiment were purchased from Wuhan Xinhongji Biotechnology Co., Ltd.

[0032] The montmorillonite in this embodiment was purchased from Inner Mongolia Kangmu Chemical Co., Ltd.

[0033] The ethoxyquinoline in this embodiment was purchased from Jiangsu Zhongdan Chemical Co., Ltd.

[0034] A method for preparing a feed additive to improve eggshell quality includes the following steps: S1. Carrier preparation: Screen 20-30 mesh rice husk powder as a carrier.

[0035] S2. Dilution: Using rice husk powder as a carrier, add 25-hydroxyD3, angelica, motherwort, taurine, bile acid, and ethoxyquinoline in sequence for dilution and use.

[0036] S3. Dilution: Using montmorillonite as a carrier, add Enterococcus faecalis, yeast cell wall polysaccharide, and compound enzyme in sequence for later use.

[0037] S4. Dilution: Using stone powder as a carrier, add glycine iron, glycine manganese, methionine zinc, and yeast selenium in sequence for later use.

[0038] S5. Mixing: Add all the diluted products from S2, S3, and S4 to the mixer and mix for 3-4 minutes.

[0039] S6. The mixed finished product shall be packaged and sealed according to specifications and stored in a sealed container.

[0040] For dilution of S2, S3, and S4, use a stainless steel mixer with a coefficient of variation (CV) < 3%, a filling factor > 80%, and a mixing time of 3-4 minutes.

[0041] The stainless steel mixer used in step S5 has a coefficient of variation (CV) of <5% and a filling factor of >80%.

[0042] Effect detection 720 healthy 500-day-old Hy-Line Brown laying hens were randomly divided into 3 groups, with 6 replicates per group and 40 hens per replicate: experimental group 1 (basal diet + 1.5% experimental product), experimental group 2 (basal diet + 2% experimental product), and control group (basal diet). The experiment was conducted for 3 days after a preliminary trial, and data were measured after 15 days of feeding. The experimental basal diet was produced by Anhui Xilejia Biotechnology Co., Ltd., and all diets used the same batch of raw materials and the same processing method. The experiment was conducted at the Fengtai laying hen farm of Anhui Xilejia Biotechnology Co., Ltd. During the experiment, hens had free access to feed and water, and disinfection and immunization were carried out according to standard procedures.

[0043] Record the total number of eggs, total egg weight, number of broken eggs, number of soft-shelled eggs, and number of sandy-shelled eggs for each duplicate daily, and calculate the broken egg rate, soft-shelled egg rate, and sandy-shelled egg rate; calculate the average daily feed intake and feed conversion ratio on a weekly basis according to the daily feed intake recorded for each duplicate.

[0044] Average daily feed intake = total feed intake / number of experimental chickens.

[0045] Feed conversion ratio = total feed intake / total egg weight.

[0046] Egg breakage rate = (Number of broken eggs / Total number of eggs) * 100%.

[0047] Soft-shell rate = number of soft-shell eggs / total number of eggs * 100%.

[0048] Sand-shelled egg rate = number of sand-shelled eggs / total number of eggs * 100%.

[0049] Egg samples were collected on day 15 of the experiment, with 6 samples collected per replicate, for a total of 30 samples per treatment, for determination of egg quality indicators. Egg shape index was measured using vernier calipers to measure the longitudinal and transverse diameters; eggshell thickness was measured using an eggshell thickness meter (average of 3 points was taken); yolk color and albumen height were measured using a Hitachi Robotmation EMT-5200 multi-functional egg quality tester, and Haugh units were calculated.

[0050] Egg-shaped index = longitudinal diameter / transverse diameter.

[0051] Hough unit = 100 * lg(H - 1.7W0.37 + 7.6); H is albumen height (mm); W is egg weight (g).

[0052]

[0053] The average daily temperature during the experiment was 30℃. Results and Analysis As shown in the table, adding this product significantly increases feed intake and egg production rate; significantly reduces mortality rate, broken egg rate, and feed conversion ratio; and significantly improves egg quality. The economic benefits are significant. The recommended addition amount in actual production is 2%.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Unless otherwise specified, an element defined by the phrase "comprising..." or "including..." does not exclude the presence of additional elements in the process, method, article, or terminal device that includes said element. Additionally, in this document, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number.

[0055] Although the above embodiments have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the above descriptions are merely embodiments of the present invention and do not limit the scope of patent protection of the present invention. Any equivalent structural or procedural transformations made using the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A feed additive for improving eggshell quality, characterized in that, It includes the following components by weight: taurine 2-4 parts, angelica 3-5 parts, motherwort 3-5 parts, glycine iron 1-3 parts, glycine manganese 2-3 parts, methionine zinc 0.5-1 part, yeast selenium 0.1-0.4 parts, 25-hydroxy D3 0.1-0.2 parts, bile acids 3-5 parts, Enterococcus faecalis 2-5 parts, yeast cell wall polysaccharide 1-2 parts, montmorillonite 20-30 parts, limestone powder 40-50 parts, ethoxyquinoline 1 part, and rice husk powder 10 parts.

2. The feed additive for improving eggshell quality as described in claim 1, characterized in that, It also includes 1-2 portions of a complex enzyme preparation for laying hens.

3. The feed additive for improving eggshell quality as described in claim 2, characterized in that, The complex enzyme preparation for laying hens includes xylanase, β-mannanase, β-glucanase, cellulase, amylase, protease, lipase, and phytase.

4. The feed additive for improving eggshell quality as described in claim 3, characterized in that, The layer hen compound enzyme preparation includes 2 million U of xylanase, 5 million U of β-mannanase, 2 million U of β-glucanase, 200,000 U of cellulase, 500,000 U of amylase, 1 million U of protease, 3.4 million U of lipase, and 13.5 million U of phytase.

5. The feed additive for improving eggshell quality as described in claim 1, characterized in that, The additive comprises the following components in parts by weight: 2 parts taurine, 3 parts angelica, 3 parts motherwort, 2 parts iron glycine, 2 parts manganese glycine, 0.5 parts zinc methionine, 0.1 parts yeast selenium, 0.1 parts 25-hydroxy D3, 20 parts montmorillonite, 3 parts bile acids, 2 parts Enterococcus faecalis, 2 parts compound enzyme, 2 parts yeast cell wall polysaccharide, 50 parts limestone powder, 1 part ethoxyquinoline, and 10 parts rice husk powder.

6. A method for preparing a feed additive to improve eggshell quality as described in any of the preceding claims, characterized in that, Includes the following steps: S1. Carrier preparation: Screen 20-30 mesh rice husk powder as a carrier; S2. Dilution: Using rice husk powder as a carrier, add 25-hydroxyD3, angelica, motherwort, taurine, bile acid, and ethoxyquinoline in sequence for dilution and use later. S3. Dilution: Using montmorillonite as a carrier, add Enterococcus faecalis, yeast cell wall polysaccharide, and complex enzyme in sequence to dilute for later use; S4. Dilution: Using stone powder as a carrier, add glycine iron, glycine manganese, methionine zinc, and yeast selenium in sequence to dilute and set aside. S5. Mixing: Add all the diluted products from S2, S3, and S4 to the mixer and mix for 3-4 minutes; S6, the mixed finished product should be stored in a sealed package.

7. The method for preparing the feed additive for improving eggshell quality as described in claim 6, characterized in that, In step S5, a stainless steel mixer with a coefficient of variation (CV) of <3% and a filling factor of >80% is used.

8. The method for preparing the feed additive for improving eggshell quality as described in claim 6, characterized in that, In step S5, a stainless steel mixer with a coefficient of variation (CV) of <5% and a filling factor of >80% is used.

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