Powder-free granular compound premixed feed and preparation method thereof

Abstract

The invention discloses a powder-free granular compound premixed feed and a preparation method thereof. Comprising the following raw materials in parts by weight: 28 to 34 parts of corn flour, 23 to 27 parts of soybean meal, 19 to 22 parts of buckwheat flour, 15 to 18 parts of meat and bone meal, 8 to 10 parts of blood powder, 0.11 to 0.16 part of water-soluble vitamins, 0.08 to 0.11 part of fat-soluble vitamins, 0.3 to 0.5 part of amino acid trace element chelate, 0.15 to 0.21 part of compound probiotics, 0.8 to 1.2 parts of minerals, 0.04 to 0.08 part of metabiotics, 2.5 to 3.5 parts of compound fat, 0.27 to 0.32 part of guar gum and 0.22 to 0.28 part of sodium alginate. According to the invention, the eating rate of the chicken to the compound premix feed is improved, the utilization rate of nutritional ingredients is improved, the foraging frequency of the chicken is further reduced, and unnecessary consumption is reduced; the problem of nutrition absorption deviation caused by picky eating of the chicken is solved.

Description

Technical Field

[0001] The invention relates to a powder-free granular composite premix feed and a preparation method thereof, and belongs to the technical field of poultry breeding. Background Art

[0002] In the poultry industry, traditional feeding methods often lead to frequent feeding of chickens, which not only increases the ineffective loss of nutrition, but also may lead to unbalanced nutrient absorption due to the picky eating of chickens. Premix feed technology came into being. Premix feed contains various vitamins, minerals, amino acids and other nutrients required by chickens. Although it improves the nutritional value and utilization rate of feed to a certain extent, it has certain shortcomings: 1) The nutrients are unbalanced due to the influence of raw materials and formula; 2) The existing premix feed has poor stability and is prone to changes or losses in nutrients; this also causes chickens to eat frequently and be picky eaters, and because chickens frequently eat or look for preferred foods, they consume a lot of energy and unnecessary nutrients. Summary of the invention

[0003] To address at least one of the problems existing in the above-mentioned prior art, the present invention provides a powder-free granular composite premix feed and a preparation method thereof.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a powder-free granular composite premix feed, comprising the following raw materials and their weight portions: 28-34 parts of corn flour, 23-27 parts of soybean meal powder, 19-22 parts of buckwheat flour, 15-18 parts of meat and bone meal, 8-10 parts of blood meal, 0.11-0.16 parts of water-soluble vitamins, 0.08-0.11 parts of fat-soluble vitamins, 0.3-0.5 parts of amino acid trace element chelates, 0.15-0.21 parts of composite probiotics, 0.8-1.2 parts of minerals, 0.04-0.08 parts of postbiotics, 2.5-3.5 parts of composite fats, 0.27-0.32 parts of guar gum and 0.22-0.28 parts of sodium alginate.

[0005] Preferably, the water-soluble vitamins are composed of vitamin C, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B7, vitamin B9, vitamin B12 and vitamin P in a mass ratio of 10:(2-3):(3-4):(6-7):(5-6):(1.5-2.5):(0.5-1):(2-3):(0.3-0.4):(0.6-0.8).

[0006] Preferably, the fat-soluble vitamins are composed of vitamin A, vitamin D, vitamin E and vitamin K in a mass ratio of 10:(6-8):(3-4):(1-2).

[0007] Preferably, the amino acid trace element chelate is composed of methionine manganese, arginine zinc, isoleucine selenium, threonine iodine, lysine iron, glycinate magnesium, glycinate copper and methionine chromium in a mass ratio of 2:(1.2-1.5):(1-1.5):(1-1.5):(1.5-1.8):(0.5-0.8):(0.6-0.9):(0.3-0.4).

[0008] Preferably, the composite probiotics are composed of Bacillus licheniformis, Bacillus subtilis, Bifidobacterium bifidum, Candida utilis, Lactobacillus acidophilus and Saccharomyces cerevisiae in a mass ratio of 2:(1.5-2):(1.8-2.2):(2-2.5):(1-1.5):(1.2-1.6).

[0009] Preferably, the mineral material is composed of calcium hydrogen phosphate and sodium chloride in a mass ratio of 1:(9-15).

[0010] Preferably, the compound fat is composed of soybean lecithin oil, perilla seed oil, peppermint oil, clove oil and cinnamon oil in a mass ratio of 3:(1.5-2.5):(0.8-1.2):(0.8-1.2):(0.5-1).

[0011] The present invention also provides a method for preparing a powder-free granular composite premix feed, comprising the following steps:

[0012] (1) First, corn flour, soybean meal, buckwheat flour, meat and bone meal, and blood meal are mixed evenly, and then divided into mixed material A, mixed material B, and mixed material C in a mass ratio of 5.5:3.5:1 for later use;

[0013] (2) After the water-soluble vitamins, postbiotics, compound probiotics, sodium alginate and mixed material A are uniformly mixed, an appropriate amount of water is added and stirred to form a soft material for later use;

[0014] (3) After the amino acid trace element chelate, minerals and mixed material B are evenly mixed, the compound fat is added and stirred evenly to form loose particles for later use;

[0015] (4) After the fat-soluble vitamins and mixed material C are uniformly mixed, guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0016] (5) placing the soft material in an extruder to extrude into a strip, placing the strip in a spheronizer to spheronize, and slowly adding loose granules to obtain wet pellets, and then placing the pellets in a fluidized bed to dry until sieving to obtain a sieving product;

[0017] (6) The sieved material is placed in a coating machine, and then the viscous paste is gradually added to mix them thoroughly, and then placed in a fluidized bed for drying to obtain a powder-free granular composite premix feed.

[0018] Preferably, in step (5), the rotation speed of the extruder is 150-200 rpm, and a screen with an aperture of 0.5 mm is used.

[0019] Preferably, in step (5), the rotation speed of the spheronizer is 800-900 rpm.

[0020] Preferably, in step (5), the particle size of the sieved material is 30 to 50 meshes.

[0021] Preferably, in step (6), the rotation speed of the coating machine is maintained at 1000-1100 rpm and the temperature is maintained at 35-40°C.

[0022] Preferably, in step (5) and step (6), the drying temperature of the fluidized bed is 45-50°C.

[0023] The beneficial effects of the present invention are as follows: the powder-free granular composite premix feed of the present invention improves the consumption rate of the composite premix feed of chickens, reduces the feed dosage, and improves the growth and weight gain of chickens through reasonable raw materials and their proportions; the powder-free granular composite premix feed of the present invention is made by grading the raw materials, wrapping them layer by layer, and granulating and shot blasting them, so that the composite premix feed is consumed layer by layer in the body of the chicken, the nutrients are absorbed layer by layer, the nutrients are utilized to the maximum extent, the feeding frequency of the chicken is reduced, and unnecessary consumption is reduced; the powder-free granular composite premix feed of the present invention can solve the problem of nutritional absorption deviation caused by the picky eating of chickens; and can also solve the problem of respiratory diseases in chickens caused by the accidental inhalation of powder into the respiratory tract. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the implementation of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention. If the specific conditions are not specified in the embodiments, they are carried out according to the normal conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents, instruments, and components used, they are all conventional products that can be purchased commercially.

[0025] The invention provides a powder-free granular composite premix feed comprising the following raw materials and their weight portions: 28-34 parts of corn flour, 23-27 parts of soybean meal powder, 19-22 parts of buckwheat flour, 15-18 parts of meat and bone meal, 8-10 parts of blood meal, 0.11-0.16 parts of water-soluble vitamins, 0.08-0.11 parts of fat-soluble vitamins, 0.3-0.5 parts of amino acid trace element chelates, 0.15-0.21 parts of composite probiotics, 0.8-1.2 parts of minerals, 0.04-0.08 parts of postbiotics, 2.5-3.5 parts of composite fats, 0.27-0.32 parts of guar gum and 0.22-0.28 parts of sodium alginate.

[0026] The water-soluble vitamins of the present invention are composed of vitamin C, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B7, vitamin B9, vitamin B12 and vitamin P in a mass ratio of 10:(2-3):(3-4):(6-7):(5-6):(1.5-2.5):(0.5-1):(2-3):(0.3-0.4):(0.6-0.8).

[0027] The fat-soluble vitamins of the present invention are composed of vitamin A, vitamin D, vitamin E and vitamin K in a mass ratio of 10:(6-8):(3-4):(1-2).

[0028] The amino acid trace element chelate of the present invention is composed of methionine manganese, arginine zinc, isoleucine selenium, threonine iodine, lysine iron, glycinate magnesium, glycinate copper and methionine chromium in a mass ratio of 2:(1.2-1.5):(1-1.5):(1-1.5):(1.5-1.8):(0.5-0.8):(0.6-0.9):(0.3-0.4).

[0029] The composite probiotics of the present invention are composed of Bacillus licheniformis, Bacillus subtilis, Bifidobacterium bifidum, Candida utilis, Lactobacillus acidophilus and Saccharomyces cerevisiae in a mass ratio of 2:(1.5-2):(1.8-2.2):(2-2.5):(1-1.5):(1.2-1.6).

[0030] The mineral material of the present invention is composed of calcium hydrogen phosphate and sodium chloride in a mass ratio of 1:(9-15).

[0031] The compound fat of the invention is composed of soybean lecithin oil, perilla seed oil, peppermint oil, clove oil and cinnamon oil in a mass ratio of 3:(1.5-2.5):(0.8-1.2):(0.8-1.2):(0.5-1).

[0032] The present invention also provides a method for preparing a powder-free granular composite premix feed, comprising the following steps:

[0033] (1) First, corn flour, soybean meal, buckwheat flour, meat and bone meal, and blood meal are mixed evenly, and then divided into mixed material A, mixed material B, and mixed material C in a mass ratio of 5.5:3.5:1 for later use;

[0034] (2) After the water-soluble vitamins, postbiotics, compound probiotics, sodium alginate and mixed material A are uniformly mixed, an appropriate amount of water is added and stirred to form a soft material for later use;

[0035] (3) After the amino acid trace element chelate, minerals and mixed material B are evenly mixed, the compound fat is added and stirred evenly to form loose particles for later use;

[0036] (4) After the fat-soluble vitamins and mixed material C are uniformly mixed, guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0037] (5) placing the soft material in an extruder to extrude into a strip, placing the strip in a spheronizer to spheronize, and slowly adding loose granules to obtain wet pellets, and then placing the pellets in a fluidized bed to dry until sieving to obtain a sieving product;

[0038] (6) The sieved material is placed in a coating machine, and then the viscous paste is gradually added to mix them thoroughly, and then placed in a fluidized bed for drying to obtain a powder-free granular composite premix feed.

[0039] In the extruder of step (5) of the present invention, the rotation speed is 150-200 rpm, and a screen with an aperture of 0.5 mm is used.

[0040] In the spheronization machine of step (5) of the present invention, the rotation speed is 800 to 900 rpm.

[0041] The particle size of the sieved material in step (5) of the present invention is 30 to 50 meshes.

[0042] In the coating machine of step (6) of the present invention, the rotation speed is maintained at 1000-1100 rpm and the temperature is maintained at 35-40°C.

[0043] The drying temperature of the fluidized bed in step (5) and step (6) of the present invention is 45-50°C.

[0044] Preparatory Example 1

[0045] Preparation of water-soluble vitamins: 1 part of vitamin C, 0.25 part of vitamin B1, 0.35 part of vitamin B2, 0.65 part of vitamin B3, 0.55 part of vitamin B5, 0.2 part of vitamin B6, 0.08 part of vitamin B7, 0.15 part of vitamin B9, 0.035 part of vitamin B12 and 0.07 part of vitamin P are stirred and mixed at a speed of 300 rpm to obtain water-soluble vitamins for later use.

[0046] Preparation of fat-soluble vitamins: 1 part of vitamin A, 0.7 part of vitamin D, 0.35 part of vitamin E and 0.15 part of vitamin K were stirred and mixed at a rotation speed of 300 rpm to obtain fat-soluble vitamins for later use.

[0047] Preparation of amino acid trace element chelate: 0.2 parts of methionine manganese, 0.135 parts of arginine zinc, 0.135 parts of isoleucine selenium, 0.135 parts of threonine iodine, 0.165 parts of lysine iron, 0.065 parts of glycinate magnesium, 0.08 parts of glycinate copper and 0.035 parts of methionine chromium are stirred and mixed at a speed of 300 rpm to obtain amino acid trace element chelate, which is set aside.

[0048] Preparation of composite probiotics: 0.2 parts of Bacillus licheniformis, 0.175 parts of Bacillus subtilis, 0.2 parts of Bifidobacterium bifidum, 0.225 parts of Candida utilis, 0.125 parts of Lactobacillus acidophilus and 0.14 parts of Saccharomyces cerevisiae were stirred and mixed at a rotation speed of 300 rpm to obtain composite probiotics for later use.

[0049] Preparation of minerals: stir and mix 1 part of calcium hydrogen phosphate and 12 parts of sodium chloride at a rotation speed of 300 rpm to obtain minerals for later use.

[0050] Preparation of compound fat: 4.5 parts of soybean lecithin oil, 3 parts of perilla seed oil, 1.5 parts of peppermint oil, 1.5 parts of clove oil and 1.05 parts of cinnamon oil are stirred and mixed at a rotation speed of 400 rpm to obtain compound fat for later use.

[0051] The water-soluble vitamins, fat-soluble vitamins, amino acid trace element chelates, compound probiotics, minerals and compound fats prepared in Preparatory Example 1 are used in the preparation of powder-free granular compound premix feeds in Examples 1 to 6.

[0052] Example 1

[0053] A powder-free granular composite premix feed is prepared according to the following raw materials and their weight portions, and the specific preparation process is as follows:

[0054] (1) First, 28 parts of corn flour, 23 parts of soybean meal, 19 parts of buckwheat flour, 15 parts of meat and bone meal, and 8 parts of blood meal were stirred and mixed at a speed of 350 rpm, and then divided into 51.15 parts of mixed material A, 32.55 parts of mixed material B, and 9.3 parts of mixed material C for later use;

[0055] (2) 0.11 parts of water-soluble vitamins, 0.04 parts of postbiotics, 0.15 parts of compound probiotics, 0.22 parts of sodium alginate and 51.15 parts of mixed material A were stirred at a speed of 350 rpm and uniformly mixed, and then an appropriate amount of water was added and stirred uniformly to form a soft material for later use;

[0056] (3) After 0.3 parts of amino acid trace element chelate, 0.8 parts of minerals and 32.55 parts of mixed material B are mixed evenly, 2.5 parts of compound fat are added and stirred evenly to form loose particles for later use;

[0057] (4) After 0.08 parts of fat-soluble vitamins and 9.3 parts of mixed material C are uniformly mixed, 0.27 parts of guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0058] (5) placing the soft material in an extruder, using a 0.5 mm aperture screen, extruding it into a strip at a speed of 150 rpm, then placing the strip in a spheronizer, spheronizing it at a speed of 800 rpm, and slowly adding loose granules to obtain wet pellets, and then placing it in a fluidized bed at a temperature of 45° C. to dry until sieving, and obtaining a sieved product with a particle size of 30 to 50 mesh;

[0059] (6) The sieved material is placed in a coating machine, and the viscous paste is gradually added thereto, and the mixture is fully mixed at a speed of 1000 rpm and a temperature of 35°C, and then dried in a fluidized bed at a temperature of 45°C to obtain a powder-free granular composite premix feed.

[0060] Example 2

[0061] A powder-free granular composite premix feed is prepared according to the following raw materials and their weight portions, and the specific preparation process is as follows:

[0062] (1) 31 parts of corn flour, 25 parts of soybean meal, 21.5 parts of buckwheat flour, 16.5 parts of meat and bone meal, and 9 parts of blood meal were stirred and mixed at a speed of 350 rpm, and then divided into 56.65 parts of mixed material A, 36.05 parts of mixed material B, and 10.3 parts of mixed material C for later use;

[0063] (2) 0.135 parts of water-soluble vitamins, 0.06 parts of postbiotics, 0.18 parts of compound probiotics, 0.25 parts of sodium alginate and 56.65 parts of mixed material A were stirred at a speed of 350 rpm and uniformly mixed, and then an appropriate amount of water was added and stirred to form a soft material for later use;

[0064] (3) After 0.4 parts of amino acid trace element chelate, 1 part of minerals and 36.05 parts of mixed material B are mixed evenly, 3 parts of compound fat are added and stirred evenly to form loose particles for later use;

[0065] (4) After 0.095 parts of fat-soluble vitamins and 10.3 parts of mixed material C are uniformly mixed, 0.3 parts of guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0066] (5) placing the soft material in an extruder, using a 0.5 mm aperture screen, extruding it into a strip at a speed of 150 rpm, then placing the strip in a spheronizer, spheronizing it at a speed of 800 rpm, and slowly adding loose granules to obtain wet pellets, and then placing it in a fluidized bed at a temperature of 45° C. to dry until sieving, and obtaining a sieved product with a particle size of 30 to 50 mesh;

[0067] (6) The sieved material is placed in a coating machine, and the viscous paste is gradually added thereto, and the mixture is fully mixed at a speed of 1000 rpm and a temperature of 35°C, and then dried in a fluidized bed at a temperature of 45°C to obtain a powder-free granular composite premix feed.

[0068] Example 3

[0069] A powder-free granular composite premix feed is prepared according to the following raw materials and their weight portions, and the specific preparation process is as follows:

[0070] (1) 34 parts of corn flour, 27 parts of soybean meal, 22 parts of buckwheat flour, 18 parts of meat and bone meal, and 10 parts of blood meal were stirred and mixed at a speed of 350 rpm, and then divided into 61.05 parts of mixed material A, 38.85 parts of mixed material B, and 11.1 parts of mixed material C for later use;

[0071] (2) 0.16 parts of water-soluble vitamins, 0.08 parts of postbiotics, 0.21 parts of compound probiotics, 0.25 parts of sodium alginate and 61.05 parts of mixed material A were stirred at a speed of 350 rpm and then added with an appropriate amount of water and stirred to form a soft material for later use;

[0072] (3) After 0.5 parts of amino acid trace element chelate, 1.2 parts of minerals and 38.85 parts of mixed material B are mixed evenly, 3.5 parts of compound fat are added and stirred evenly to form loose particles for later use;

[0073] (4) After 0.11 parts of fat-soluble vitamins and 11.1 parts of mixed material C are uniformly mixed, 0.32 parts of guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0074] (5) placing the soft material in an extruder, using a 0.5 mm aperture screen, extruding it into a strip at a speed of 150 rpm, then placing the strip in a spheronizer, spheronizing it at a speed of 800 rpm, and slowly adding loose granules to obtain wet pellets, and then placing it in a fluidized bed at a temperature of 45° C. to dry until sieving, and obtaining a sieved product with a particle size of 30 to 50 mesh;

[0075] (6) The sieved material is placed in a coating machine, and the viscous paste is gradually added thereto, and the mixture is fully mixed at a speed of 1000 rpm and a temperature of 35°C, and then dried in a fluidized bed at a temperature of 45°C to obtain a powder-free granular composite premix feed.

[0076] Example 4

[0077] A powder-free granular composite premix feed is prepared according to the following raw materials and their weight portions, and the specific preparation process is as follows:

[0078] (1) 30 parts of corn flour, 26 parts of soybean meal, 22 parts of buckwheat flour, 17 parts of meat and bone meal, and 9 parts of blood meal were stirred and mixed at a speed of 350 rpm, and then divided into 57.20 parts of mixed material A, 36.40 parts of mixed material B, and 10.4 parts of mixed material C for later use;

[0079] (2) 0.12 parts of water-soluble vitamins, 0.05 parts of postbiotics, 0.16 parts of compound probiotics, 0.23 parts of sodium alginate and 57.20 parts of mixed material A were stirred at a speed of 350 rpm and uniformly mixed, and then an appropriate amount of water was added and stirred uniformly to form a soft material for later use;

[0080] (3) After 0.35 parts of amino acid trace element chelate, 0.9 parts of minerals and 36.40 parts of mixed material B are mixed evenly, 2.7 parts of compound fat are added and stirred evenly to form loose particles for later use;

[0081] (4) After 0.09 parts of fat-soluble vitamins and 10.4 parts of mixed material C are uniformly mixed, 0.28 parts of guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0082] (5) placing the soft material in an extruder, using a 0.5 mm aperture screen, extruding it into a strip at a speed of 150 rpm, then placing the strip in a spheronizer, spheronizing it at a speed of 800 rpm, and slowly adding loose granules to obtain wet pellets, and then placing it in a fluidized bed at a temperature of 45° C. to dry until sieving, and obtaining a sieved product with a particle size of 30 to 50 mesh;

[0083] (6) The sieved material is placed in a coating machine, and the viscous paste is gradually added thereto, and the mixture is fully mixed at a speed of 1000 rpm and a temperature of 35°C, and then dried in a fluidized bed at a temperature of 45°C to obtain a powder-free granular composite premix feed.

[0084] Example 5

[0085] A powder-free granular composite premix feed is prepared according to the following raw materials and their weight portions, and the specific preparation process is as follows:

[0086] (1) First, 29 parts of corn flour, 24 parts of soybean meal, 20 parts of buckwheat flour, 16 parts of meat and bone meal, and 8 parts of blood meal were stirred and mixed at a speed of 350 rpm, and then divided into 53.35 parts of mixed material A, 33.95 parts of mixed material B, and 9.7 parts of mixed material C for later use;

[0087] (2) 0.15 parts of water-soluble vitamins, 0.07 parts of postbiotics, 0.2 parts of compound probiotics, 0.26 parts of sodium alginate and 53.35 parts of mixed material A were stirred at a speed of 350 rpm until uniformly mixed, and then an appropriate amount of water was added and stirred to form a soft material for later use;

[0088] (3) After 0.45 parts of amino acid trace element chelate, 1.1 parts of minerals and 33.95 parts of mixed material B are mixed evenly, 3.3 parts of compound fat are added and stirred evenly to form loose particles for later use;

[0089] (4) After 0.1 parts of fat-soluble vitamins and 9.7 parts of mixed material C are uniformly mixed, 0.31 parts of guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0090] (5) placing the soft material in an extruder, using a 0.5 mm aperture screen, extruding it into a strip at a speed of 150 rpm, then placing the strip in a spheronizer, spheronizing it at a speed of 800 rpm, and slowly adding loose granules to obtain wet pellets, and then placing it in a fluidized bed at a temperature of 45° C. to dry until sieving, and obtaining a sieved product with a particle size of 30 to 50 mesh;

[0091] (6) The sieved material is placed in a coating machine, and the viscous paste is gradually added thereto, and the mixture is fully mixed at a speed of 1000 rpm and a temperature of 35°C, and then dried in a fluidized bed at a temperature of 45°C to obtain a powder-free granular composite premix feed.

[0092] Example 6

[0093] A powder-free granular composite premix feed is prepared according to the following raw materials and their weight portions, and the specific preparation process is as follows:

[0094] (1) First, 28 parts of corn flour, 23 parts of soybean meal, 19.5 parts of buckwheat flour, 15 parts of meat and bone meal, and 8.5 parts of blood meal were stirred and mixed at a speed of 350 rpm, and then divided into 51.7 parts of mixed material A, 32.9 parts of mixed material B, and 9.4 parts of mixed material C for later use;

[0095] (2) 0.14 parts of water-soluble vitamins, 0.05 parts of postbiotics, 0.17 parts of compound probiotics, 0.22 parts of sodium alginate and 51.7 parts of mixed material A were stirred at a speed of 350 rpm and uniformly mixed, and then an appropriate amount of water was added and stirred to form a soft material for later use;

[0096] (3) After 0.3 parts of amino acid trace element chelate, 0.9 parts of minerals and 32.9 parts of mixed material B are mixed evenly, 2.9 parts of compound fat are added and stirred evenly to form loose particles for later use;

[0097] (4) After 0.085 parts of fat-soluble vitamins and 9.4 parts of mixed material C are uniformly mixed, 0.29 parts of guar gum and an appropriate amount of water are added to form a viscous paste for later use;

[0098] (5) placing the soft material in an extruder, using a 0.5 mm aperture screen, extruding it into a strip at a speed of 150 rpm, then placing the strip in a spheronizer, spheronizing it at a speed of 800 rpm, and slowly adding loose granules to obtain wet pellets, and then placing it in a fluidized bed at a temperature of 45° C. to dry until sieving, and obtaining a sieved product with a particle size of 30 to 50 mesh;

[0099] (6) The sieved material is placed in a coating machine, and the viscous paste is gradually added thereto, and the mixture is fully mixed at a speed of 1000 rpm and a temperature of 35°C, and then dried in a fluidized bed at a temperature of 45°C to obtain a powder-free granular composite premix feed.

[0100] Preparatory Example 2

[0101] Preparation of water-soluble vitamins: stir and mix 1 part of vitamin C, 0.2 part of vitamin B1, 0.3 part of vitamin B2, 0.6 part of vitamin B3, 0.5 part of vitamin B5, 0.15 part of vitamin B6, 0.05 part of vitamin B7, 0.2 part of vitamin B9, 0.03 part of vitamin B12 and 0.06 part of vitamin P at 300 rpm to obtain water-soluble vitamins for later use.

[0102] Preparation of fat-soluble vitamins: 1 part of vitamin A, 0.6 part of vitamin D, 0.3 part of vitamin E and 0.1 part of vitamin K were stirred and mixed at a rotation speed of 300 rpm to obtain fat-soluble vitamins for later use.

[0103] Preparation of amino acid trace element chelate: 0.2 parts of methionine manganese, 0.12 parts of arginine zinc, 0.1 parts of isoleucine selenium, 0.1 parts of threonine iodine, 0.15 parts of lysine iron, 0.05 parts of glycinate magnesium, 0.06 parts of glycinate copper and 0.03 parts of methionine chromium are stirred and mixed at a speed of 300 rpm to obtain amino acid trace element chelate, which is set aside.

[0104] Preparation of composite probiotics: 0.2 parts of Bacillus licheniformis, 0.15 parts of Bacillus subtilis, 0.18 parts of Bifidobacterium bifidum, 0.2 parts of Candida utilis, 0.1 parts of Lactobacillus acidophilus and 0.12 parts of Saccharomyces cerevisiae were stirred and mixed at a rotation speed of 300 rpm to obtain composite probiotics for later use.

[0105] Preparation of minerals: stir and mix 1 part of calcium hydrogen phosphate and 9 parts of sodium chloride at a rotation speed of 300 rpm to obtain minerals for later use.

[0106] Preparation of compound fat: 4.5 parts of soybean lecithin oil, 2.25 parts of perilla seed oil, 1.2 parts of peppermint oil, 1.2 parts of clove oil and 0.75 parts of cinnamon oil are stirred and mixed at a rotation speed of 400 rpm to obtain compound fat for later use.

[0107] The water-soluble vitamins, fat-soluble vitamins, amino acid trace element chelates, compound probiotics, minerals and compound fats prepared in Preparatory Example 2 are used in the preparation of the powder-free granular compound premix feed in Example 7.

[0108] Example 7

[0109] A powder-free granular composite premix feed, whose raw materials, weight portions and preparation method are the same as those in Example 5.

[0110] Preparatory Example 3

[0111] Preparation of water-soluble vitamins: stir and mix 1 part of vitamin C, 0.3 part of vitamin B1, 0.4 part of vitamin B2, 0.7 part of vitamin B3, 0.6 part of vitamin B5, 0.25 part of vitamin B6, 0.1 part of vitamin B7, 0.3 part of vitamin B9, 0.04 part of vitamin B12 and 0.08 part of vitamin P at 300 rpm to obtain water-soluble vitamins for later use.

[0112] Preparation of fat-soluble vitamins: 1 part of vitamin A, 0.8 part of vitamin D, 0.4 part of vitamin E and 0.2 part of vitamin K were stirred and mixed at a rotation speed of 300 rpm to obtain fat-soluble vitamins for later use.

[0113] Preparation of amino acid trace element chelate: 0.2 parts of methionine manganese, 0.15 parts of arginine zinc, 0.15 parts of isoleucine selenium, 0.15 parts of threonine iodine, 0.18 parts of lysine iron, 0.08 parts of glycinate magnesium, 0.09 parts of glycinate copper and 0.04 parts of methionine chromium are stirred and mixed at a speed of 300 rpm to obtain amino acid trace element chelate for use.

[0114] Preparation of composite probiotics: 0.2 parts of Bacillus licheniformis, 0.2 parts of Bacillus subtilis, 0.22 parts of Bifidobacterium bifidum, 0.25 parts of Candida utilis, 0.15 parts of Lactobacillus acidophilus and 0.16 parts of Saccharomyces cerevisiae were stirred and mixed at a rotation speed of 300 rpm to obtain composite probiotics for later use.

[0115] Preparation of minerals: stir and mix 1 part of calcium hydrogen phosphate and 15 parts of sodium chloride at a rotation speed of 300 rpm to obtain minerals for later use.

[0116] Preparation of compound fat: 4.5 parts of soybean lecithin oil, 2.25 parts of perilla seed oil, 1.2 parts of peppermint oil, 1.2 parts of clove oil and 0.75 parts of cinnamon oil are stirred and mixed at a rotation speed of 400 rpm to obtain compound fat for later use.

[0117] The water-soluble vitamins, fat-soluble vitamins, amino acid trace element chelates, compound probiotics, minerals and compound fats prepared in Preparatory Example 3 were used in the preparation of the powder-free granular compound premix feed in Example 8.

[0118] Example 8

[0119] A powder-free granular composite premix feed, whose raw materials, weight portions and preparation method are the same as those in Example 5.

[0120] Preparatory Example 3

[0121] Preparation of water-soluble vitamins: stir and mix 1 part of vitamin C, 0.3 part of vitamin B1, 0.4 part of vitamin B2, 0.7 part of vitamin B3, 0.6 part of vitamin B5, 0.25 part of vitamin B6, 0.1 part of vitamin B7, 0.3 part of vitamin B9, 0.04 part of vitamin B12 and 0.08 part of vitamin P at 300 rpm to obtain water-soluble vitamins for later use.

[0122] Preparation of fat-soluble vitamins: 1 part of vitamin A, 0.8 part of vitamin D, 0.4 part of vitamin E and 0.2 part of vitamin K were stirred and mixed at a rotation speed of 300 rpm to obtain fat-soluble vitamins for later use.

[0123] Preparation of amino acid trace element chelate: 0.2 parts of methionine manganese, 0.15 parts of arginine zinc, 0.15 parts of isoleucine selenium, 0.15 parts of threonine iodine, 0.18 parts of lysine iron, 0.08 parts of glycinate magnesium, 0.09 parts of glycinate copper and 0.04 parts of methionine chromium are stirred and mixed at a speed of 300 rpm to obtain amino acid trace element chelate for use.

[0124] Preparation of composite probiotics: 0.2 parts of Bacillus licheniformis, 0.2 parts of Bacillus subtilis, 0.22 parts of Bifidobacterium bifidum, 0.25 parts of Candida utilis, 0.15 parts of Lactobacillus acidophilus and 0.16 parts of Saccharomyces cerevisiae were stirred and mixed at a rotation speed of 300 rpm to obtain composite probiotics for later use.

[0125] Preparation of minerals: stir and mix 1 part of calcium hydrogen phosphate and 15 parts of sodium chloride at a rotation speed of 300 rpm to obtain minerals for later use.

[0126] Preparation of compound fat: 4.5 parts of soybean lecithin oil, 2.25 parts of perilla seed oil, 1.2 parts of peppermint oil, 1.2 parts of clove oil and 0.75 parts of cinnamon oil are stirred and mixed at a rotation speed of 400 rpm to obtain compound fat for later use.

[0127] The water-soluble vitamins, fat-soluble vitamins, amino acid trace element chelates, compound probiotics, minerals and compound fats prepared in Preparatory Example 3 were used in the preparation of the powder-free granular compound premix feed in Example 8.

[0128] Example 8

[0129] A powder-free granular composite premix feed, whose raw materials, weight portions and preparation method are the same as those in Example 5.

[0130] Preparatory Example 4

[0131] Preparation of water-soluble vitamins: 1 part of vitamin C, 0.25 part of vitamin B1, 0.35 part of vitamin B2, 0.65 part of vitamin B3, 0.55 part of vitamin B5, 0.2 part of vitamin B6, 0.8 part of vitamin B7, 0.15 part of vitamin B9, 0.035 part of vitamin B12 and 0.07 part of vitamin P are stirred and mixed at a speed of 300 rpm to obtain water-soluble vitamins for later use.

[0132] Preparation of fat-soluble vitamins: 1 part of vitamin A, 0.7 part of vitamin D, 0.35 part of vitamin E and 0.1 part of vitamin K were stirred and mixed at a rotation speed of 300 rpm to obtain fat-soluble vitamins for later use.

[0133] Preparation of amino acid trace element chelate: 0.2 parts of methionine manganese, 0.12 parts of arginine zinc, 0.15 parts of isoleucine selenium, 0.1 parts of threonine iodine, 0.17 parts of lysine iron, 0.06 parts of glycinate magnesium, 0.08 parts of glycinate copper and 0.04 parts of methionine chromium are stirred and mixed at a speed of 300 rpm to obtain amino acid trace element chelate for use.

[0134] Preparation of composite probiotics: 0.2 parts of Bacillus licheniformis, 0.15 parts of Bacillus subtilis, 0.2 parts of Bifidobacterium bifidum, 0.25 parts of Candida utilis, 0.12 parts of Lactobacillus acidophilus and 0.16 parts of Saccharomyces cerevisiae were stirred and mixed at a rotation speed of 300 rpm to obtain composite probiotics for later use.

[0135] Preparation of minerals: stir and mix 1 part of calcium hydrogen phosphate and 13 parts of sodium chloride at a rotation speed of 300 rpm to obtain minerals for later use.

[0136] Preparation of compound fat: 4.5 parts of soybean lecithin oil, 2 parts of perilla seed oil, 1.2 parts of peppermint oil, 1.5 parts of clove oil and 0.9 parts of cinnamon oil are stirred and mixed at a rotation speed of 400 rpm to obtain compound fat for later use.

[0137] The water-soluble vitamins, fat-soluble vitamins, amino acid trace element chelates, compound probiotics, minerals and compound fats prepared in Preparatory Example 4 were used in the preparation of the powder-free granular compound premix feed in Example 9.

[0138] Example 9

[0139] A powder-free granular composite premix feed, whose raw materials, weight portions and preparation method are the same as those in Example 5.

[0140] Preparatory Example 5

[0141] Preparation of water-soluble vitamins: stir and mix 1 part of vitamin C, 0.2 part of vitamin B1, 0.35 part of vitamin B2, 0.65 part of vitamin B3, 0.5 part of vitamin B5, 0.15 part of vitamin B6, 0.7 part of vitamin B7, 0.2 part of vitamin B9, 0.03 part of vitamin B12 and 0.06 part of vitamin P at 300 rpm to obtain water-soluble vitamins for later use.

[0142] Preparation of fat-soluble vitamins: 1 part of vitamin A, 0.6 part of vitamin D, 0.35 part of vitamin E and 0.15 part of vitamin K were stirred and mixed at a rotation speed of 300 rpm to obtain fat-soluble vitamins for later use.

[0143] Preparation of amino acid trace element chelate: 0.2 parts of methionine manganese, 0.15 parts of arginine zinc, 0.1 parts of isoleucine selenium, 0.1 parts of threonine iodine, 0.15 parts of lysine iron, 0.08 parts of glycinate magnesium, 0.07 parts of glycinate copper and 0.03 parts of methionine chromium are stirred and mixed at a speed of 300 rpm to obtain amino acid trace element chelate, which is set aside.

[0144] Preparation of composite probiotics: 0.2 parts of Bacillus licheniformis, 0.2 parts of Bacillus subtilis, 0.18 parts of Bifidobacterium bifidum, 0.225 parts of Candida utilis, 0.1 parts of Lactobacillus acidophilus and 0.15 parts of Saccharomyces cerevisiae were stirred and mixed at a rotation speed of 300 rpm to obtain composite probiotics for later use.

[0145] Preparation of minerals: stir and mix 1 part of calcium hydrogen phosphate and 10 parts of sodium chloride at a rotation speed of 300 rpm to obtain minerals for later use.

[0146] Preparation of compound fat: 3 parts of soybean lecithin oil, 1.8 parts of perilla seed oil, 1 part of peppermint oil, 1.2 parts of clove oil and 0.5 parts of cinnamon oil are stirred and mixed at a rotation speed of 400 rpm to obtain compound fat for later use.

[0147] The water-soluble vitamins, fat-soluble vitamins, amino acid trace element chelates, compound probiotics, minerals and compound fats prepared in Preparatory Example 5 are used in the preparation of the powder-free granular compound premix feed in Example 10.

[0148] Example 10

[0149] A powder-free granular composite premix feed, whose raw materials, weight portions and preparation method are the same as those in Example 5.

[0150] Comparative Example 1

[0151] A powder-free granular composite premix feed, which is different from Example 5 in that: 0.2 parts of amino acids and 0.2 parts of trace elements are used instead of amino acid trace element chelates; wherein the amino acids are composed of 0.21 parts of methionine, 0.135 parts of arginine, 0.135 parts of isoleucine, 0.135 parts of threonine, 0.165 parts of lysine, and 0.1 parts of glycine; and the trace elements are composed of 0.2 parts of manganese oxide, 0.135 parts of zinc oxide, 0.045 parts of nano-selenium, 0.135 parts of potassium iodate, 0.165 parts of ferrous sulfate, 0.065 parts of magnesium carbonate, 0.08 parts of cupric chloride, and 0.03 parts of chromium chloride.

[0152] Comparative Example 2

[0153] A powder-free granular composite premix feed, which is different from Example 5 in that the composite fat consists of 3 parts of soybean lecithin oil, 2 parts of rapeseed oil and 1 part of lard.

[0154] Comparative Example 3

[0155] A powder-free granular composite premix feed, which is different from Example 5 in that: the water-soluble vitamins consist of 1 part of vitamin C, 0.5 part of vitamin B1, 0.5 part of vitamin B2, 0.5 part of vitamin B3, 0.5 part of vitamin B5, 0.5 part of vitamin B6, 0.45 part of vitamin B7, 0.25 part of vitamin B9, 0.2 part of vitamin B12 and 0.25 part of vitamin.

[0156] Comparative Example 4

[0157] A powder-free granular composite premix feed, which is different from Example 5 in that the fat-soluble vitamins consist of 1 part of vitamin A, 1 part of vitamin D, 0.5 part of vitamin E and 0.5 part of vitamin K.

[0158] Comparative Example 5

[0159] A powder-free granular composite premix feed, which is different from Example 5 in that the composite probiotics are composed of 0.2 parts of Bacillus licheniformis, 0.2 parts of Bacillus subtilis, 0.2 parts of Bifidobacterium bifidum, 0.2 parts of Candida utilis, 0.2 parts of Lactobacillus acidophilus and 0.1 parts of Saccharomyces cerevisiae.

[0160] Comparative Example 6

[0161] A granular composite premix feed, which is different from Example 5 in that it does not contain sodium alginate and guar gum.

[0162] Comparative Example 7

[0163] A granular composite premix feed, which is different from Example 5 in that:

[0164] (1) 29 parts of corn flour, 24 parts of soybean meal, 20 parts of buckwheat flour, 16 parts of meat and bone meal, 8 parts of blood meal, 0.15 parts of water-soluble vitamins, 0.07 parts of postbiotics, 0.2 parts of compound probiotics, 0.26 parts of sodium alginate, 0.45 parts of amino acid trace element chelate, 1.1 parts of minerals, 3.3 parts of compound fat, 0.1 parts of fat-soluble vitamins and 0.31 parts of guar gum are mixed evenly, and an appropriate amount of water is added, stirred evenly, and then extruded into granules, and dried in a fluidized bed at a temperature of 45° C. to obtain a granular composite premix feed with a particle size of 30 to 50 meshes.

[0165] Comparative Example 8

[0166] A granular composite premix feed, which is different from Example 5 in that:

[0167] (1) 29 parts of corn flour, 24 parts of soybean meal, 20 parts of buckwheat flour, 16 parts of meat and bone meal, 8 parts of blood meal, 0.15 parts of water-soluble vitamins, 0.07 parts of postbiotics, 0.2 parts of compound probiotics, 0.26 parts of sodium alginate, 0.45 parts of amino acid trace element chelate, 1.1 parts of minerals, 3.3 parts of compound fat, 0.1 parts of fat-soluble vitamins and 0.31 parts of guar gum are mixed evenly, and an appropriate amount of water is added and stirred evenly to form a soft material;

[0168] (2) The soft material is placed in an extruder, and a 0.5 mm aperture screen is used to extrude the material into strips at a rotation speed of 150 rpm. The strips are then placed in a spheronizer and spheronized at a rotation speed of 800 rpm to obtain wet pellets, which are then placed in a fluidized bed at a temperature of 45° C. for drying to obtain a granular composite premix feed with a particle size of 30 to 50 meshes.

[0169] 1. Powder determination was performed on the granular composite premix feeds of Examples 1 to 6 and Comparative Examples 6 to 8: 1) Observe the appearance: observe whether the granules are full, and touch them with clean and dry hands to observe whether there is powder attached to the hands; 2) Place 100 g of granular feed on a 10-30 mesh sieve, vibrate and sieve for 1 min, weigh the powder under the sieve, and calculate the powder content, powder content = (mass of powder under the sieve / total feed mass) × 100%, as shown in Table 1.

[0170] Table 1 Particle situation

[0171]

[0172] 2. Growth performance: 2280 healthy reed hens of 70 days old, similar in weight were selected, and 19 groups were formed according to Examples 1 to 10, Comparative Examples 1 to 8, and a control group, with 6 replicates in each group and 20 hens in each replicate. A 40-day feeding was started, during which the hens were free to eat and drink water; the control group was fed a basal diet, and the growth performance was shown in Table 2.

[0173] Growth performance: At the beginning and end of the experiment, the fasting weight of each group of experimental chickens was weighed and recorded, the daily feeding amount and residual feed amount were recorded, and the average daily weight gain, average daily feed intake and feed-to-weight ratio were calculated.

[0174] Table 1 Growth performance

[0175]

[0176] It can be found from Table 2 above that compared with the control group, the final weight and average daily weight gain of Examples 1 to 10 of the present invention were significantly increased, while the feed-to-weight ratio was significantly reduced (P<0.05).

[0177] Compared with Example 5, the trace elements in Comparative Example 1 are inorganic compounds, and the inorganic compounds and amino acids are simply mixed. The inorganic compounds are not conducive to the absorption of trace elements by the reed hens, and will cause the reed hens to eat frequently, resulting in the loss of nutrients, which is not conducive to the growth and weight gain of the reed hens.

[0178] Compared with Example 5, the raw materials and proportions of the compound fat in Comparative Example 2, the raw material proportions of the water-soluble vitamins in Comparative Example 3, the raw material proportions of the fat-soluble vitamins in Comparative Example 4, and the raw material proportions of the compound probiotics in Comparative Example 5 have changed, which will increase the feeding frequency of the reed hens and affect their growth and weight gain.

[0179] Compared with Example 5, combined with Table 1, in Comparative Example 6, sodium alginate and guar gum are not added, which will cause powder to be attached to the particles. In Comparative Example 7, all the raw materials are first mixed together, and then extruded and granulated without shot blasting, which will also cause powder to be attached to the particles, and the amount of powder is large. In Comparative Example 8, all the raw materials are first mixed together, extruded and granulated, and then shot blasted, and powder will also be attached, and the amount of powder is small. Combined with Table 2, it is found that powder attached to the particles will reduce the consumption rate of reed hens, which is not conducive to growth and weight gain; in addition, compared with Comparative Examples 8 and Comparative Examples 7, Comparative Example 6 does not add sodium alginate and guar gum, which will increase the consumption of reed hens, indicating that sodium alginate and guar gum can reduce the feeding frequency of chickens to a certain extent and are beneficial to the growth and weight gain of chickens.

[0180] The present invention adopts reasonable raw materials and their proportions, and makes powder-free granular composite premix feed by grading and wrapping the raw materials layer by layer, granulating and shot blasting, so that the composite premix feed is consumed layer by layer in the body of the chicken, and the nutrients are absorbed layer by layer at different times, so that the nutrients are utilized to the maximum extent, the utilization rate of the nutrients is improved, and the feeding frequency of the chicken is reduced, and unnecessary consumption is reduced; in addition, the problem of nutritional absorption deviation caused by the chicken's picky eating and the problem of respiratory diseases caused by the chicken due to the accidental inhalation of powder into the respiratory tract can be solved.

[0181] In summary, the powder-free granular composite premix feed of the present invention improves the consumption rate of the composite premix feed by chickens, reduces the feed dosage, and improves the growth and weight gain of chickens; and the granular composite premix feed of the present invention does not produce powder, thereby avoiding respiratory diseases caused by accidental inhalation of the chickens into the respiratory tract during feeding, and also reducing the health hazards to people caused by excessive dust in the feed production process.

[0182] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0183] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A powder-free granular composite premix feed, characterized in that: The invention comprises the following raw materials and their weight proportions: 28-34 parts of corn flour, 23-27 parts of soybean meal powder, 19-22 parts of buckwheat flour, 15-18 parts of meat and bone meal, 8-10 parts of blood meal, 0.11-0.16 parts of water-soluble vitamins, 0.08-0.11 parts of fat-soluble vitamins, 0.3-0.5 parts of amino acid trace element chelates, 0.15-0.21 parts of compound probiotics, 0.8-1.2 parts of minerals, 0.04-0.08 parts of postbiotics, 2.5-3.5 parts of compound fats, 0.27-0.32 parts of guar gum and 0.22-0.28 parts of sodium alginate.

2. The powder-free granular composite premix feed according to claim 1, characterized in that: The water-soluble vitamins are composed of vitamin C, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B7, vitamin B9, vitamin B12 and vitamin P in a mass ratio of 10:(2-3):(3-4):(6-7):(5-6):(1.5-2.5):(0.5-1):(2-3):(0.3-0.4):(0.6-0.8).

3. The powder-free granular composite premix feed according to claim 1, characterized in that: The fat-soluble vitamins are composed of vitamin A, vitamin D, vitamin E and vitamin K in a mass ratio of 10:(6-8):(3-4):(1-2).

4. The powder-free granular composite premix feed according to claim 1, characterized in that: The amino acid trace element chelate is composed of methionine manganese, arginine zinc, isoleucine selenium, threonine iodine, lysine iron, glycinate magnesium, glycinate copper and methionine chromium in a mass ratio of 2:(1.2-1.5):(1-1.5):(1-1.5):(1.5-1.8):(0.5-0.8):(0.6-0.9):(0.3-0.4).

5. The powder-free granular composite premix feed according to claim 1, characterized in that: The composite probiotics are composed of Bacillus licheniformis, Bacillus subtilis, Bifidobacterium bifidum, Candida utilis, Lactobacillus acidophilus and Saccharomyces cerevisiae in a mass ratio of 2:(1.5-2):(1.8-2.2):(2-2.5):(1-1.5):(1.2-1.6).

6. The powder-free granular composite premix feed according to claim 1, characterized in that: The mineral substance is composed of calcium hydrogen phosphate and sodium chloride in a mass ratio of 1:(9-15).

7. The powder-free granular composite premix feed according to claim 1, characterized in that: The compound fat is composed of soybean lecithin oil, perilla seed oil, peppermint oil, clove oil and cinnamon oil in a mass ratio of 3:(1.5-2.5):(0.8-1.2):(0.8-1.2):(0.5-1).

8. A method for preparing the powder-free granular composite premix feed according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) First, corn flour, soybean meal, buckwheat flour, meat and bone meal, and blood meal are mixed evenly, and then divided into mixed material A, mixed material B, and mixed material C in a mass ratio of 5.5:3.5:1 for later use; (2) After the water-soluble vitamins, postbiotics, compound probiotics, sodium alginate and mixed material A are uniformly mixed, an appropriate amount of water is added and stirred to form a soft material for later use; (3) After the amino acid trace element chelate, minerals and mixed material B are evenly mixed, the compound fat is added and stirred evenly to form loose particles for later use; (4) After the fat-soluble vitamins and mixed material C are uniformly mixed, guar gum and an appropriate amount of water are added to form a viscous paste for later use; (5) placing the soft material in an extruder to extrude into a strip, placing the strip in a spheronizer to spheronize, and slowly adding loose granules to obtain wet pellets, and then placing the pellets in a fluidized bed to dry until sieving to obtain a sieving product; (6) The sieved material is placed in a coating machine, and then the viscous paste is gradually added to mix them thoroughly, and then placed in a fluidized bed for drying to obtain a powder-free granular composite premix feed.

9. The method for preparing a powder-free granular composite premix feed according to claim 8, characterized in that: In the step (5), the rotation speed in the extruder is 150-200 rpm, and a 0.5 mm aperture screen is used; the rotation speed in the spheronizer is 800-900 rpm; the drying temperature of the fluidized bed is 45-50° C.; and the particle size of the sieved material is 30-50 mesh.

10. The method for preparing a powder-free granular composite premix feed according to claim 9, characterized in that: In the step (6), the rotation speed of the coating machine is maintained at 1000-1100 rpm and the temperature is maintained at 35-40°C; the drying temperature of the fluidized bed is maintained at 45-50°C.

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