CN106107206B - Preparation method of fermented chicken feed - Google Patents

Abstract

The invention discloses a preparation method of a fermented chicken feed, which comprises the following steps: 1) uniformly mixing strains, wherein the strains comprise aspergillus niger, geotrichum candidum and trichoderma; 2) uniformly mixing the mixed strains with main materials, adding nutrient salt and stirring to obtain a mixed feed, wherein the main materials comprise soybean meal and bran, and the nutrient salt comprises urea, ammonium sulfate, calcium superphosphate, bentonite, salt and water; 3) putting the mixed feed into a fermentation chamber for fermentation, and adding the fermented mixed feed into coarse grains in proportion to prepare fermented feed; 4) and breaking the wall of the rhodotorula benthica to obtain a rhodotorula benthica culture solution, adding the rhodotorula benthica culture solution into the fermented feed, uniformly mixing, and drying to obtain the final chicken feed. The prepared chicken feed contains coarse food grain protein, mycoprotein, protein in rhodotorula benthica, carotenoid and the like, and the promotion and the cooperation among nutrient elements jointly provide a powerful guarantee for the growth of the firewood chicken and enrich the nutrient varieties obtained by the firewood chicken.

Description

A kind of preparation method of fermented chicken feed

technical field

The invention relates to the technical field of animal feed, in particular to a preparation method of a fermented chicken feed.

Background technique

The modern large-scale animal husbandry method has improved the production speed, but also brought many problems. The quality of livestock products is reduced, livestock and poultry are prone to various diseases, and a large number of antibiotics and additives in the feed are added to human health. These problems affect the healthy development of my country's animal husbandry. High-quality feed is the guarantee for the production of high-quality livestock products. At present, my country urgently needs feeds that can improve the quality and quality of livestock products, are beneficial to the healthy growth of animals, and are beneficial and harmless to the health of consumers.

Especially for the poultry industry, the development is even more rapid, and various poultry feeds have also developed rapidly. At this stage, there are many kinds of various feeds in the market, with different functions. But for poultry feed, two points are the most important. The first point is to ensure sufficient protein content to provide sufficient conditions for the growth of poultry, reduce the breeding cycle and increase the income; the second point is to improve the resistance of poultry and prevent insect diseases. harm and improve the survival rate of poultry. These two points are more important for the more expensive poultry. The shorter breeding cycle allows the funds to be quickly returned to the cage, which is conducive to expanding production and resisting emergencies. Increase earnings.

Chai chicken has the characteristics of resistance to rough feeding, adaptability, foraging, stable genetic performance, strong nesting ability and strong disease resistance. At present, it has existed in a large number of poultry breeding industry, but Chai chicken has higher value content than general poultry. How to ensure a large amount of protein supply and how to ensure the health of Chai chicken have become two problems that farming needs to face at present.

The invention with application number 201510299407.3 discloses a fermented chicken feed, which is characterized in that it includes adding corn meal and soybean meal powder into the formula, and the weight percentage of corn is 45% to 50% and soybean meal powder is 10% to 15%. The feed is added with distilled water to form a solution, and the solution of the feed is added with Lactobacillus acidophilus expansion solution and Bacillus subtilis expansion solution, and then the semi-solid medium is used to expand and cultivate Candida utilis into an expansion medium, and the The above-mentioned feed solution, Lactobacillus acidophilus expansion solution, Bacillus subtilis expansion solution and Candida utilis expansion medium are mixed and fermented for 80 hours, sealed and fermented for 80 hours, and grass powder is added after fermentation. The grass powder component contained in the invention can replace antibiotics and maintain the health of chickens, but the supply of protein remains unsolved.

The invention with the application number of 201310651866.4 uses fermented corn straw to produce high-efficiency broiler feed. It only needs to use corn straw, and through processing such as pulverization, ammonia treatment, steam, fermentation, etc. Improve slaughter quality. The method uses fermented corn stalks to replace soybean meal, which reduces the cost, but the improvement of protein in the feed is limited, and the protein supply is not as much as pure soybean meal to a certain extent, and the effect is not ideal.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to aim at the deficiencies of the prior art, and to provide a method for preparing a fermented chicken feed. etc., the combination of coarse grains, Geotrichum candidum, and marine red yeast together, the promotion and synergy between nutrient elements provide a strong guarantee for the growth of Chai chicken and enrich the types of nutrients obtained by Chai chicken.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is:

A preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is evenly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, salt and water;

3) covering the mixed feed with a plastic film, putting it into a fermentation chamber for fermentation, and adding the fermented mixed feed to the coarse grains in proportion to obtain a fermented feed;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

Further, the parts by weight of the bacterial species in the step 1) are: 1-8 parts of Aspergillus niger, 4-24 parts of Geotrichum candidum, and 0.5-2 parts of Trichoderma.

Further, in the step 2), the parts by weight of each component of the main material are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 1 to 3 parts of urea, 2 parts of ammonium sulfate ~6 parts, superphosphate 1-3 parts, bentonite 5-15 parts, salt 0.2-1 part, water 150-220 parts.

Further, in the step 2), the parts by weight of each component of the mixed feed are: 100-300 parts of main ingredients, 10-35 parts of bacterial species, and 110-335 parts of nutrient salts.

Further, in the step 3), the fermentation process of the mixed feed is divided into two stages, the temperature of the first stage of the fermentation chamber is 30-38°C, the fermentation time is 6-10h, and the temperature of the second-stage fermentation chamber is 22-30°C , the fermentation time is 18 ~ 42h.

Further, in the step 3), the parts by weight of each component of the fermented feed are: 1 part of the fermented mixed feed and 4 parts of coarse grains, and the coarse grains include one or more of soybean meal and bran.

Further, in the described step 4), the preparation method of the marine red yeast culture liquid comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 26-34°C for 40-56h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 24-32°C and 200-400r/min for 20-28h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 26-34°C and 200-400r/min for 60-84h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and oscillate at 30 to 65 ° C and 200 to 400 r/min for 3 to 7 hours to obtain a marine Rhododendron culture solution. Each 100 mL of fermentation The weight of β-mannanase added to the fermentation medium after cultivation is not more than 0.2 g.

Further, each liter of the slant medium contains 15-35 g of glucose, 5-11 g of protein, 3-7 g of yeast powder, and 10-30 g of agar.

Further, each liter of the liquid seed culture medium contains 15-35 g of glucose, 5-11 g of protein, 3-7 g of yeast powder, 4-8 g of potassium dihydrogen phosphate, 5-15 g of sodium chloride, and 2-4 g of magnesium sulfate. , the pH value is 4-7, and the fermentation medium and the liquid seed medium have the same composition.

Further, 1 mL of marine red yeast culture solution is added to each gram of the fermented feed.

The invention provides a preparation method of a fermented chicken feed. By adding Geotrichum candidum to the main material, a large amount of protein in the main material can be converted into mycelial protein, so as to produce bacterial protein that is beneficial to the absorption of Chai chicken, and improve the protein in the feed. The utilization rate of Aspergillus niger and Trichoderma are preferentially cultivated, which can generate a large amount of nutrients such as organic acids, stimulate the production of more bacterial protein by Geotrichum candidum, and have a strong promotion effect on the protein transformation of fermented feed. Nutrient salts provide a better environment for the cultivation of Geotrichum candidum, Aspergillus niger and Trichoderma, and promote the cultivation of their strains, and the multivitamins and minerals that meet the requirements also enrich the nutritional components of chicken feed, which is conducive to the healthy growth of Chai chickens.

The fermented mixed feed is mixed with coarse grains, so as to ensure the conversion rate of crude protein of mixed feed to bacterial protein, that is, the functions of Geotrichum candidum, Aspergillus niger and Trichoderma can be fully exerted, and then unfermented coarse grains are added. Under the premise of controlling costs, it can not only ensure the content of bacterial protein in the feed, but also ensure the content of vegetable protein, so that the nutrition obtained by Chai chicken is more balanced. There are many choices of coarse grains. The recommended ones are soybean meal and bran. The specific use should be judged according to the absorption of feed protein. Coarse grains can also be used in rotation to enrich the nutrition of the feed.

Marine red yeast is a yeast that exists in natural sea areas. Its cells are rich in protein, glycogen, unsaturated fatty acids, larval growth hormone and carotenoids mainly astaxanthin and other nutrients. The yeast has a very good effect on the growth of animal larvae, enhances resistance, accelerates growth rate, etc., but has not been widely used in chicken feed. In the present invention, by adding marine red yeast, the protein content in the feed is increased again, and It makes the feed contain carotenoids, which is extremely beneficial to the growth of Chai chicken, and also increases the sensory color and nutritional value of Chai chicken, making Chai chicken eggs higher in nutritional value and taste better. Competitiveness. The present invention performs wall-breaking treatment on the marine red yeast before adding it to increase the permeability of the cell wall, which facilitates the penetration of nutrients such as astaxanthin in the cell to the outside of the cell and is absorbed by Chai chicken, greatly increases the probability of the nutrients being absorbed, and improves the Utilization of marine red yeast.

The method of breaking the wall of marine red yeast adopts the enzymatic method to break the wall. First, the marine red yeast is activated, cultured, and fermented, and then higher-quality yeast is selected for cultivation and fermentation, and the obtained marine red yeast is of higher quality. Then by adding β-mannanase, the permeability of yeast cell wall can be changed, and the wall of marine red yeast can be broken. The defect of poor feed taste greatly improves the wall-breaking rate of marine red yeast, and β-mannanase can also promote the digestion and absorption of energy, protein and cellulose, and enhance the absorption effect of Chai chicken on feed nutrients.

The final chicken feed is a mixture of fermented feed and marine red yeast culture liquid, which contains coarse grain protein, bacterial protein, protein and carotenoids inside the marine red yeast, etc., combined with coarse grains, Geotrichum candidum and marine red yeast, The promotion and synergy between nutrient elements together provide a strong guarantee for the growth of Chai chicken, enrich the types of nutrients obtained by Chai chicken, and also improve its absorption rate of various components in chicken feed, especially protein, which greatly accelerates the growth of Chai chicken. Speed, improve the taste, color and nutritional value of the main and by-products.

The beneficial effects of the present invention are as follows:

1. The cultivation of Aspergillus niger and Trichoderma provides a favorable growth environment for Geotrichum candidum, which makes the transformation of plant protein by Geotrichum candidum more thorough, and produces more bacterial protein, which is better than the single use of Geotrichum candidum;

2. Nutrient salts provide a better environment for the cultivation of Geotrichum candidum, Aspergillus niger and Trichoderma, promote the cultivation of their strains, and the multivitamins and minerals that meet the requirements also enrich the nutritional components of chicken feed, which is beneficial to the health of Chai chickens grow;

3. The mixed feed after fermentation is mixed with coarse grains. Under the premise of controlling costs, it can not only ensure the content of bacterial protein in the feed, but also ensure the content of vegetable protein, so that the nutrition obtained by Chai chicken is more balanced;

4. By adding marine red yeast, the protein content in the feed is increased again, and the feed contains carotenoids, which is extremely beneficial to the growth of Chai chicken, and also increases the sensory color and nutritional value of Chai chicken, making the nutritional value of Chai chicken eggs. High, tastes better, and Chai chicken itself has bright feathers and delicious meat, which enhances the competitiveness of the product;

5. The use of β-mannanase for enzymatic hydrolysis to break the wall of marine red yeast can well avoid the destruction of various nutrients such as astaxanthin by chemical wall breaking method, and also improve the feed caused by other enzymatic hydrolysis methods. Defects of poor taste, and β-mannanase can also promote the digestion and absorption of energy, protein and cellulose, and enhance the absorption effect of Chai chicken on feed nutrients.

Detailed ways

In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the examples, but the protection content of the present invention is not limited to the following examples, and the specific embodiments are as follows:

Example 1

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. Including soybean meal, the subsequent embodiments all use soybean meal to ensure the accuracy of the test;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation, and then rotate and vibrate for 5 hours at 50 ° C and 300r/min to obtain a marine Rhododendron culture solution. Each 100mL of fermentation medium after fermentation The weight of β-mannanase added inside is 0.05g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 2

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is evenly mixed, the bacterial classification includes Geotrichum candidum;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 3

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 150 parts of main ingredients, 22 parts of bacterial species, and 160 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 4

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 260 parts of main ingredients, 22 parts of bacterial species, and 280 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 5

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) Cover the mixed feed with plastic film, put it into the fermentation room for fermentation at 25°C for 38 hours, add the fermented mixed feed to the coarse grains in proportion to obtain fermented feed, and the parts by weight of each component of the fermented feed are: 1 part of mixed feed and 4 parts of coarse grains, the coarse grains include soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 6

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 31°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 7

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 29°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 8

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 9

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. Including soybean meal, the fermented feed is dried to produce the final chicken feed.

Embodiment ten

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) adding the marine red yeast culture liquid into the fermented feed, mixing evenly and drying to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 11

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 40°C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

The liquid seed medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and a pH value of 5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment 12

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

Each liter of the liquid seed culture medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and the pH value is 4.5. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Embodiment thirteen

The present embodiment provides a preparation method of fermented chicken feed, comprising the following steps:

1) after the bacterial classification is uniformly mixed, the bacterial classification includes Aspergillus niger, Geotrichum candidum and Trichoderma, and the parts by weight of each component of the bacterial classification are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma ;

2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient includes soybean meal and bran, and the nutrient salt includes urea, ammonium sulfate, superphosphate, bentonite, Salt and water, the parts by weight of each component of the main ingredient are: 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, superphosphoric acid 2 parts of calcium, 10 parts of bentonite, 0.6 part of salt, 180 parts of water, and the parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts;

3) The mixed feed is covered with a plastic film, put into a fermentation chamber for fermentation, and the fermented mixed feed is added to the coarse grains in proportion to obtain a fermented feed. The fermentation process of the mixed feed is divided into two sections, and the temperature of the first section of the fermentation room is divided into two sections. The fermentation time is 34°C, the fermentation time is 8h, the temperature of the second fermentation chamber is 25°C, and the fermentation time is 30h. including soybean meal;

4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, mixing it evenly, and drying it to obtain the final chicken feed.

The preparation method of the marine red yeast culture liquid in the described step 4) comprises the following steps:

a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 30°C for 48h;

b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 28°C and 300r/min for 24h;

c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 30°C and 300r/min for 72h;

d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and shake for 5 hours at 50 ° C and 300r/min rotation speed to obtain a marine Rhododendron culture solution. The weight of β-mannanase added to the fermentation medium was 0.05 g.

Each liter of the slant medium contains 25 g of glucose, 8 g of protein, 5 g of yeast powder, and 20 g of agar.

Each liter of the liquid seed culture medium contains 25g of glucose, 8g of protein, 5g of yeast powder, 5.6g of potassium dihydrogen phosphate, 10g of sodium chloride, 3g of magnesium sulfate, and the pH value is 6. The liquid seed medium composition is the same.

Add 1 mL of marine red yeast culture broth per gram of fermented feed.

Examples 1 to 8 ensure that the wall-breaking conditions of marine red yeast are avoided, and the first three steps are changed. Examples nine to thirteen are to keep the first three steps unchanged, whether to add marine red yeast, whether to add Wall-breaking and wall-breaking methods were tested. Divide 1300 Chai chickens into 13 groups on average and use the above thirteen kinds of feeds to test the feed and Chai chicken feces. The table is as follows:

Table II:

The crude protein content is to detect the crude protein content of the final chicken feed; the carotenoid content is to detect the carotenoid of the chicken feed; the protein absorption rate is to detect the crude protein of the feces of the Chai chicken, and the crude protein content of the chicken feed is detected by comparing with the crude protein of the chicken feed. The protein is calculated by the formula (crude protein content of chicken feed - protein content of feces)/crude protein content of chicken feed; the mortality rate is the mortality rate of Chai chicken within one month of breeding; The wall-breaking situation of marine red yeast in the liquid is detected, and the higher the wall-breaking rate, the better.

It can be seen from the above table that the effect of Example 1 is the best, its crude protein content is the highest, and the carotenoid is the same because of the same culture method of marine red yeast, so except for Example 9, other examples are the same, but consider the wall-breaking rate Example 10 In Example 13, the carotenoid absorption was average. In terms of protein absorption rate, the absorption rate of Example 1 is the highest, and the mortality rate is 0, indicating that the internal carotenoid absorption is better, and the protein infiltration of bacterial protein, vegetable protein and marine red yeast is the best.

Claims (6)

1. a preparation method of fermented Chai chicken feed, is characterized in that: comprise the steps: 1) after the bacterial classification is mixed, the bacterial classification is made up of Aspergillus niger, Geotrichum candidum and Trichoderma; 2) mix the mixed bacterial classification with the main ingredient, add nutrient salt and stir to obtain a mixed feed, the main ingredient is soybean meal and bran, and the nutrient salt is urea, ammonium sulfate, superphosphate, bentonite, salt and water; 3) covering the mixed feed with a plastic film, putting it into a fermentation chamber for fermentation, and adding the fermented mixed feed to the coarse grains in proportion to obtain a fermented feed; 4) breaking the wall of the marine red yeast to obtain the marine red yeast culture liquid, adding it to the fermented feed, and drying after mixing to obtain the final chicken feed; The parts by weight of the bacterial species in the step 1) are: 1-8 parts of Aspergillus niger, 4-24 parts of Geotrichum candidum, and 0.5-2 parts of Trichoderma; 50 parts of soybean meal, 50 parts of bran; the parts by weight of each component of the nutrient salt are: 1-3 parts of urea, 2-6 parts of ammonium sulfate, 1-3 parts of superphosphate, 5-15 parts of bentonite, and 0.5 parts of salt. 2 to 1 parts, 150 to 220 parts of water; In the step 2), the parts by weight of each component of the mixed feed are: 100-300 parts of main ingredients, 10-35 parts of bacterial species, and 110-335 parts of nutrient salts; In the step 3), the fermentation process of the mixed feed is divided into two stages, the temperature of the first stage of the fermentation chamber is 30-38°C, the fermentation time is 6-10h, the temperature of the second-stage fermentation chamber is 22-30°C, and the fermentation time is 22-30°C. For 18 ~ 42h. 2. The preparation method of fermented Chaiji feed as claimed in claim 1, characterized in that: in step 1) the parts by weight of each component of the bacterial species are: 4 parts of Aspergillus niger, 16 parts of Geotrichum candidum, 1 part of Trichoderma share; Step 2) The parts by weight of the main ingredients are: 50 parts of soybean meal and 50 parts of bran; The parts by weight of each component of the nutrient salt are: 2 parts of urea, 4 parts of ammonium sulfate, 2 parts of superphosphate, 10 parts of bentonite, 0.6 parts of salt, and 180 parts of water; The parts by weight of each component of the mixed feed are: 200 parts of main ingredients, 22 parts of bacterial species, and 222 parts of nutrient salts; The fermentation process described in step 3) is divided into two stages, the temperature of the first stage of the fermentation chamber is 34°C and the fermentation time is 8h, the temperature of the second stage of the fermentation chamber is 25°C and the fermentation time is 30h, and the weight of each component of the fermented feed is The number of servings is: 1 part of the fermented mixed feed and 4 parts of coarse grains, and the coarse grains include soybean meal. 3. the preparation method of fermented Chai chicken feed as claimed in claim 2 is characterized in that: the preparation method of marine red yeast culture liquid in described step 4) comprises the steps: a. Strain activation: Inoculate the marine Rhododendron strain stored in the refrigerator on the slant medium and activate it at 26-34°C for 40-56h; b. Seed culture: inoculate the fully activated strains in the slant medium into the liquid seed medium, and centrifuge at 24-32°C and 200-400r/min for 20-28h; c. Fermentation culture: insert the cultured strains into the fermentation medium at 10% inoculum, and centrifuge at 26-34°C and 200-400r/min for 60-84h; d. Add β-mannanase to the fermentation medium after fermentation and culture, and then rotate and oscillate at 30 to 65 ° C and 200 to 400 r/min for 3 to 7 hours to obtain a marine Rhododendron culture solution. Each 100 mL of fermentation The weight of β-mannanase added to the fermentation medium after cultivation is not more than 0.2 g. 4. The preparation method of fermented chicken feed according to claim 3, wherein the slant medium contains 15-35 g of glucose, 5-11 g of protein, 3-7 g of yeast powder, and 10-10 g of agar in each liter of the slant medium. 30g. 5. The preparation method of fermented chicken feed as claimed in claim 4, wherein the liquid seed medium contains 15-35 g of glucose, 5-11 g of protein, 3-7 g of yeast powder, 2-phosphoric acid per liter of the liquid seed medium. Potassium hydrogen 4～8g, sodium chloride 5～15g, magnesium sulfate 2～4g, pH value is 4～7, described fermentation medium and described liquid seed medium have the same composition. 6. The preparation method of fermented chicken feed as claimed in claim 5, characterized in that: 1 mL of marine red yeast culture solution is added to each gram of fermented feed.