CN111387364A - Laying hen feed and preparation method thereof - Google Patents
Laying hen feed and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a layer feed and a preparation method thereof, the layer feed is prepared by taking methionine, lysine, multivitamin, feeding sodium chloride, sodium bicarbonate, monocalcium phosphate, vitamin E, an antioxidant, composite trace elements, phytase, bacillus subtilis, rice chaff, choline chloride, calcium formate, calcium lactate and calcium butyrate as raw materials and adopting a multistage mixing method. The feed reduces the proportion and cost of premix, and can meet the nutritional requirements of laying hens in each breeding stage and the common nutritional requirements of egg laying and growth in the early stage of egg laying; the physique is uniform in the middle period of egg laying, and the maintenance time in the peak period is long; the hair color is better in the later period of egg laying, the physique is better, and the eggshell is better; health-care nutritional raw materials are added, so that the health state of the laying hens in the breeding process is effectively improved when nutrition is provided, the laying hens are kept in a longer peak period, the hair color is better in the later breeding period, and the bodies are strong; the eggshell has good quality, and is ruddy and glossy.
Description
Technical Field
The invention belongs to the technical field of animal feed, and particularly relates to laying hen feed and a preparation method thereof.
Background
The laying period of the laying hens is divided into a period of early laying, a period of peak laying and a period of middle and later laying, and the nutritional requirements of each period are different. Most of the premix of the feed used in the laying period in the existing breeding process is a product with a proportion of 4-5%, the production cost and the transportation cost are high, the occupied feed space is large, the nutrient concentration of the prepared compound feed is low, the range of the adjustable nutrient concentration is small, and most of laying hens cannot achieve the optimal breeding benefit of the corresponding stage, so that a plurality of chicken flocks are in a sub-health state (overnutrition or malnutrition), the production performance cannot be fully exerted, and various unstable factors occur in the laying hen breeding, such as: the chickens in the egg-laying peak period are weak, and the egg laying rate is reduced quickly; the chicken feather color difference, emaciation, more sporadic death and poor eggshell quality at the later breeding stage. Therefore, the laying hen breeding industry needs a feed which can meet the nutritional requirements of each egg laying period and can assist in improving the health state of the laying hen.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the laying hen feed and the preparation method thereof, the feed prepared by the invention reduces the proportion and the cost of the premix, can meet the nutritional requirements of the laying hens in each breeding stage, and has rich nutrition, good palatability, easy digestion and high feed conversion rate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a laying hen feed is prepared from the following raw materials in parts by weight: 1-2 parts of methionine, 0.5-1.5 parts of lysine, 0.3-0.5 part of multivitamin, 2-3 parts of feeding sodium chloride, 1-3 parts of sodium bicarbonate, 8-12 parts of monocalcium phosphate, 0.05-0.15 part of vitamin E, 0.10-0.14 part of antioxidant, 1.5-2.5 parts of compound trace element, 0.2-0.3 part of phytase, 0.03-0.07 part of bacillus subtilis, 1.63-2.03 parts of rice chaff, 1.0-1.5 parts of choline chloride, 0.5-1.5 parts of calcium formate, 0.3-0.7 part of calcium lactate and 0.3-0.7 part of calcium butyrate.
Further, the feed additive is prepared from the following raw materials in parts by weight: 1.5 parts of methionine, 1 part of lysine, 0.4 part of vitamin complex, 2.5 parts of feeding sodium chloride, 2 parts of sodium bicarbonate, 10 parts of monocalcium phosphate, 0.1 part of vitamin E, 0.12 part of antioxidant, 2 parts of compound trace elements, 0.25 part of phytase, 0.05 part of bacillus subtilis, 1.83 parts of rice chaff, 1.25 parts of choline chloride, 1 part of calcium formate, 0.5 part of calcium lactate and 0.5 part of calcium butyrate.
Further, the antioxidant is tert-butyl hydroxy anisol.
Further, the compound trace elements comprise copper methionine, ferric glycine, manganese methionine, zinc methionine, sodium selenite and calcium iodate.
Furthermore, the composite trace elements comprise the following components in percentage by weight: 1.6% of methionine, 20% of glycine iron, 16.1% of methionine manganese, 13% of methionine zinc, 0.06% of sodium selenite, 0.08% of calcium iodate and the balance of stone powder carrier.
Further, the compound vitamin is prepared from vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, vitamin B12, nicotinic acid, pantothenic acid, folic acid and biotin.
Furthermore, the compound vitamin comprises the following components in percentage by weight: vitamin A accounts for 5.5 percent of the total weight of the compound vitamin, vitamin D3 accounts for 2 percent of the total weight of the compound vitamin, vitamin E accounts for 20 percent of the total weight of the compound vitamin, vitamin K3 accounts for 1 percent of the total weight of the compound vitamin, vitamin B1 accounts for 0.7 percent of the total weight of the compound vitamin, vitamin B2 accounts for 2 percent of the total weight of the compound vitamin, vitamin B6 accounts for 1.2 percent of the total weight of the compound vitamin, vitamin B12 accounts for 0.6 percent of the total weight of the compound vitamin, nicotinic acid accounts for 11 percent of the total weight of the compound vitamin, pantothenic acid accounts for 4.4 percent of the total weight of the compound vitamin, folic acid accounts for 0.35 percent of the total weight of the compound vitamin, biotin accounts for 1.2 percent of the total weight of the compound vitamin, and the rest part is rice bran oil injection.
The preparation method of the laying hen feed comprises the following steps:
(1) weighing the raw materials according to the weight of the raw materials for later use;
(2) the components are added in sequence according to the weight ratio from large to small, and are mechanically mixed step by step and fermented to obtain the laying hen feed.
Further, in the step (2), the water content of the layer chicken feed is 28-32%.
Further, in the step (2), the fermentation is carried out for 3-5 days at 35-40 ℃.
The related properties of part of the raw materials of the invention are as follows:
lysine: the laying hens limit the amino acid secondarily and promote the growth of muscles and bones. The additive has great help to the physique health of the whole egg laying period, and particularly helps to maintain the laying rate of laying hens by reasonably adding lysine to the lean and weak laying hens in the early period of egg laying and the physique failure in the later period of egg laying.
Sodium bicarbonate: the sodium bicarbonate can neutralize gastric acid, dissolve mucus, reduce viscosity of digestive juice, and enhance gastrointestinal contraction, and has effects of invigorating stomach, inhibiting acid and stimulating appetite. Can supplement poultry with reduced carbonate in blood due to heat wheezing, thereby improving calcium metabolism of body. Can improve the mobility of phosphorus in the bodies of the laying fowls. In order to form good eggshells, it is necessary to maintain an appropriate phosphorus concentration in the blood, and sodium bicarbonate can maintain the concentration of phosphorus in the blood of the laying fowl at an appropriate level necessary to form eggshells. The sodium bicarbonate can be decomposed to release CO in the digestive tract, thereby taking away a large amount of heat and being beneficial to maintaining the heat balance of the organism in hot days. Can improve laying rate and eggshell strength.
Mono-di-calcium phosphate: the monocalcium phosphate is slightly acidic, has low pH value, can slow down the oxidation speed of ferrous sulfate, and can effectively prevent the feed from being oxidized. The citrate soluble phosphorus and the water soluble phosphorus are 50% in each station, the phosphorus in the two forms are complementary in a synergistic manner, gastric acid is not needed for absorption of the water soluble phosphorus, the feed utilization rate is increased, the requirement of laying hens on calcium and phosphorus elements is quickly supplemented, and the acidity of the citrate soluble phosphorus is particularly remarkable in the effect of supplementing the requirement of young livestock and poultry on calcium and phosphorus.
Vitamin E: the vitamin is called as reproductive vitamin or anti-sterile vitamin, is essential vitamin for chicken, has close relation with the immune function and the cell anti-oxidation function of chicken, has important effect on the synthesis of a plurality of hormones, and improves the content of VE in the feed, thereby being beneficial to maintaining the laying performance of the laying hens for a long time.
Compounding organic trace: the organic trace elements have the characteristics of high efficiency, good stability, no toxicity and the like, can accelerate the growth of the laying hens, improve the immunity of the laying hens and the like, and are representative of health-care nutritional raw materials. The health-care nutrition of organic trace elements is the key for realizing the health of animals, wherein the organic trace elements such as hydroxymethionine, threonine series chelate and the like are the representative types which can exert the health-care nutrition value of the trace elements at present. The amino acid chelate is used for feeding the laying hens, so that the laying rate can be obviously improved, the egg weight can be increased, the laying period can be prolonged, and the egg quality can be improved.
B, bacillus subtilis: reducing the occurrence of intestinal diseases of the chicken, particularly having good effect on preventing and treating diarrhea and bacillary dysentery, having obvious effect on preventing and treating salmonella, being capable of adjusting micro-ecological balance in host intestinal tracts, promoting the improvement of digestion and immune functions and having good effect on promoting the production performance of the laying hens
Calcium formate: the organic acid calcium containing formic acid can release small molecular formic acid to help calcium absorption without participation of gastric acid in digestion. Can effectively reduce the pH of the gastrointestinal tract of animals, is beneficial to activating pepsinogen, and particularly can make up for the deficiency of secretion of digestive enzymes and hydrochloric acid in the stomach of animals, thereby preventing the large-scale growth and reproduction of escherichia coli and other pathogenic bacteria, promoting the growth of some beneficial bacteria (such as lactobacillus) and improving the digestibility of feed nutrients. The calcium formate used by the laying hens has the functions of supplementing calcium, resisting bacteria and diminishing inflammation, improving reproductive function, prolonging egg laying peak period, promoting multiple ovulation and reducing egg cholesterol.
Calcium lactate: it can be used as calcium supplement for human and animal, and has effects in bone formation, bone tissue reconstruction after fracture, muscle contraction, nerve transmission, gland secretion, vision physiology and blood coagulation mechanism, etc., and can be used for laying hen rickets, cartilage, milk lameness, antenatal and puerperal paralysis, soft preserved egg, and sand preserved egg.
Calcium butyrate: calcium butyrate is used for supplementing calcium, and simultaneously has prevention and control effects on various types of diarrhea, so that the diarrhea-resistant feed additive for controlling the diarrhea is provided for animal breeding, the economic loss caused by the diarrhea in animal breeding is greatly reduced, and the overall health state of animals is improved; the calcium butyrate has the effects of reducing the crypt depth of the small intestine of the animal, improving the V/C value and reducing the width of villus, thereby improving the capability of digesting and absorbing nutrient substances, promoting the proliferation and maturation of gastrointestinal tract cells of livestock and poultry and the development of small intestine mucous membranes, promoting the secretion of digestive juice, improving the intestinal flora, improving the growth performance and improving the feed utilization rate. Butyric acid is decomposed into butyrate root ions and hydrogen ions after entering bacterial cells, pathogenic bacteria with poor tolerance to the hydrogen ions, such as salmonella, escherichia coli, clostridium and the like, are killed in a large amount, and acid-resistant lactobacillus and other beneficial bacteria are propagated in a large amount, so that the balance between beneficial bacteria and harmful bacteria in the gastrointestinal tract is effectively adjusted, the whole intestinal tract tends to be in a healthy state, and the normal digestion and absorption functions are maintained.
The calcium butyrate can increase the muscle strength of animals and improve the autoimmunity of the animals, and is used for enhancing the immunity of livestock and poultry, improving the disease resistance and improving the production performance of the livestock and poultry.
Compared with the prior art, the invention has the beneficial effects that:
(1) the laying hen feed disclosed by the invention reduces the proportion and the cost of the premix, and can meet the nutritional requirements of each breeding stage of the laying hen and the nutritional requirements of egg laying and growth at the early stage of egg laying; the physique is uniform in the middle period of egg laying, and the maintenance time in the peak period is long; the hair color is better in the later period of egg laying, the physique is better, and the eggshell is better;
(2) the feed disclosed by the invention is rich in nutrition, good in palatability, easy to digest and high in feed conversion rate, and is a high-quality biological fermentation feed;
(3) health-care nutritional raw materials are added into the feed, so that the health state of the laying hens in the breeding process is effectively improved when nutrition is provided, the laying hens are kept in a long peak period, the hair color is good in the later breeding period, and the bodies are strong; the eggshell has good quality, and is ruddy and glossy.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The embodiment provides a laying hen feed, which is prepared from the following raw materials: 2kg of methionine, 1.5kg of lysine, 0.3kg of multivitamin, 3kg of feeding sodium chloride, 1kg of sodium bicarbonate, 12kg of monocalcium phosphate, 0.05kg of vitamin E, 0.14kg of antioxidant, 1.5kg of compound trace element, 0.3kg of phytase, 0.03kg of bacillus subtilis, 2.03kg of rice chaff, 1.0kg of choline chloride, 1.5kg of calcium formate, 0.3kg of calcium lactate and 0.7kg of calcium butyrate.
The composite trace elements comprise the following components in percentage by weight: 1.6% of methionine, 20% of glycine iron, 16.1% of methionine manganese, 13% of methionine zinc, 0.06% of sodium selenite, 0.08% of calcium iodate and the balance of stone powder carrier.
The compound vitamin comprises the following components in percentage by weight: vitamin A accounts for 5.5 percent of the total weight of the compound vitamin, vitamin D3 accounts for 2 percent of the total weight of the compound vitamin, vitamin E accounts for 20 percent of the total weight of the compound vitamin, vitamin K3 accounts for 1 percent of the total weight of the compound vitamin, vitamin B1 accounts for 0.7 percent of the total weight of the compound vitamin, vitamin B2 accounts for 2 percent of the total weight of the compound vitamin, vitamin B6 accounts for 1.2 percent of the total weight of the compound vitamin, vitamin B12 accounts for 0.6 percent of the total weight of the compound vitamin, nicotinic acid accounts for 11 percent of the total weight of the compound vitamin, pantothenic acid accounts for 4.4 percent of the total weight of the compound vitamin, folic acid accounts for 0.35 percent of the total weight of the compound vitamin, biotin accounts for 1.2 percent of the total weight of the compound vitamin, and the rest part is rice bran oil injection.
The preparation method of the laying hen feed comprises the following steps:
(1) weighing the raw materials according to the weight of the raw materials for later use;
(2) the components are added in sequence according to the weight ratio from large to small, and are mechanically mixed step by step and fermented to obtain the laying hen feed.
Example 2
The embodiment provides a laying hen feed, which is prepared from the following raw materials: 1kg of methionine, 0.5kg of lysine, 0.5kg of multivitamin, 2kg of feeding sodium chloride, 3kg of sodium bicarbonate, 8kg of monocalcium phosphate, 0.15kg of vitamin E, 0.10kg of antioxidant, 2.5kg of compound trace element, 0.2kg of phytase, 0.07kg of bacillus subtilis, 1.63kg of rice chaff, 1.5kg of choline chloride, 0.5kg of calcium formate, 0.7kg of calcium lactate and 0.3kg of calcium butyrate.
The composite trace elements comprise the following components in percentage by weight: 1.6% of methionine, 20% of glycine iron, 16.1% of methionine manganese, 13% of methionine zinc, 0.06% of sodium selenite, 0.08% of calcium iodate and the balance of stone powder carrier.
The compound vitamin comprises the following components in percentage by weight: vitamin A accounts for 5.5 percent of the total weight of the compound vitamin, vitamin D3 accounts for 2 percent of the total weight of the compound vitamin, vitamin E accounts for 20 percent of the total weight of the compound vitamin, vitamin K3 accounts for 1 percent of the total weight of the compound vitamin, vitamin B1 accounts for 0.7 percent of the total weight of the compound vitamin, vitamin B2 accounts for 2 percent of the total weight of the compound vitamin, vitamin B6 accounts for 1.2 percent of the total weight of the compound vitamin, vitamin B12 accounts for 0.6 percent of the total weight of the compound vitamin, nicotinic acid accounts for 11 percent of the total weight of the compound vitamin, pantothenic acid accounts for 4.4 percent of the total weight of the compound vitamin, folic acid accounts for 0.35 percent of the total weight of the compound vitamin, biotin accounts for 1.2 percent of the total weight of the compound vitamin, and the rest part is rice bran oil injection.
The preparation method of the laying hen feed comprises the following steps:
(1) weighing the raw materials according to the weight of the raw materials for later use;
(2) the components are added in sequence according to the weight ratio from large to small, are mechanically mixed step by step and are fermented for 3 days at the temperature of 40 ℃, water is added in the fermentation process, certain humidity is kept for fermentation, and the laying hen feed is obtained, wherein the water content is 28%.
Example 3
The embodiment provides a laying hen feed, which is prepared from the following raw materials: 1.5kg of methionine, 1kg of lysine, 0.4kg of vitamin complex, 2.5kg of feeding sodium chloride, 2kg of sodium bicarbonate, 10kg of monocalcium phosphate, 0.1kg of vitamin E, 0.12kg of antioxidant, 2kg of compound trace elements, 0.25kg of phytase, 0.05kg of bacillus subtilis, 1.83kg of rice chaff, 1.25kg of choline chloride, 1kg of calcium formate, 0.5kg of calcium lactate and 0.5kg of calcium butyrate; the antioxidant is tert-butyl hydroxy anisole. The tert-butyl hydroxy anisole has strong antibacterial capacity and oxidation resistance.
The composite trace elements comprise the following components in percentage by weight: 1.6% of methionine, 20% of glycine iron, 16.1% of methionine manganese, 13% of methionine zinc, 0.06% of sodium selenite, 0.08% of calcium iodate and the balance of stone powder carrier.
The compound vitamin comprises the following components in percentage by weight: vitamin A accounts for 5.5 percent of the total weight of the compound vitamin, vitamin D3 accounts for 2 percent of the total weight of the compound vitamin, vitamin E accounts for 20 percent of the total weight of the compound vitamin, vitamin K3 accounts for 1 percent of the total weight of the compound vitamin, vitamin B1 accounts for 0.7 percent of the total weight of the compound vitamin, vitamin B2 accounts for 2 percent of the total weight of the compound vitamin, vitamin B6 accounts for 1.2 percent of the total weight of the compound vitamin, vitamin B12 accounts for 0.6 percent of the total weight of the compound vitamin, nicotinic acid accounts for 11 percent of the total weight of the compound vitamin, pantothenic acid accounts for 4.4 percent of the total weight of the compound vitamin, folic acid accounts for 0.35 percent of the total weight of the compound vitamin, biotin accounts for 1.2 percent of the total weight of the compound vitamin, and the rest part is rice bran oil injection.
The preparation method of the laying hen feed comprises the following steps:
(1) weighing the raw materials according to the weight of the raw materials for later use;
(2) the components are added in sequence according to the weight ratio from large to small, are mechanically mixed step by step and are fermented for 4 days at 38 ℃, water is added in the fermentation process, certain humidity is kept for fermentation, and the laying hen feed is obtained, wherein the water content is 30%.
Comparative example 1
The only difference between this comparative example and example 3 is that: no phytase is added in the raw materials, and no phytase is added in the preparation process.
Test example 1
Respectively detecting the performance of the laying hen feeding in the egg laying period and the embodiment of the egg laying performance of the laying hens in the egg laying period in the examples 1-3 and the comparative example 1 of the invention
An experimental field: cao county wild kernel breeding professional cooperative, Binggui river laying hen farm;
the experimental variety is as follows: the Nongda No. 3 grain-saving type dwarf laying hens have high nutritional requirements and obvious contrast experiment effects; the nutritional requirements of the Nongda No. 3 laying hens can be met, and a great reference value can be provided for the nutritional formulas of other varieties;
the experimental method comprises the following steps: the inventor performs a single-factor contrast breeding test in 2018, 5 months and 21 days, and takes a Dangui river laying hen farm as a 340-day period;
control group: 7800 laying hens in a 180-day-old laying period in a henhouse No. 1 are divided into 3 groups, each group is 2600, the first group is used as a blank control group without adding premix, and the second group uses the feed obtained in the comparative example 1 as a control group 1; third group commercial premix was added as comparative group 2;
experimental groups: 7800 laying hens in the egg laying period of 180 days in a henhouse No. 2 are divided into 3 groups, 2600 laying hens are each group, and the feeds obtained by the methods 1 to 3 are respectively used as experimental groups.
With the increase of the age of the breeding days, the formula of the laying hens is synchronously adjusted, and the specific formula is as the following table 1:
TABLE 1 feed formulation
The results are shown in Table 2:
table 2 egg laying comparison
As can be seen from the table 2, when the feed prepared by the method is used for feeding the Nongda No. 3 dwarf laying hens and compared with a control group, the laying hens fed by the feed prepared by the method have the advantages of high laying rate, slightly heavy eggs, good egg quality and advantageous physical growth of the laying hens, and the raw material selection and compatibility of the feed have positive effects on the laying hen quality and the laying rate.
From the above tests, the inventors found that the following advantages are obtained in the laying period of the laying hens fed with the feed of the present invention:
1. in the early egg-laying period of the laying hens, the requirements for physique development and egg laying can be effectively met;
2. maintaining a longer peak period and slowing the rate of decrease in egg production after peak;
3. the eggshell quality of the whole breeding period is improved, and defective eggs are reduced;
4. maintaining the health state of the laying hens in the whole breeding period;
5. the skeletal deformation and the related death and failure of the laying hens in the later period of cultivation are reduced;
6. the fur color of the eliminated laying hens is better, and the eliminated weight is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The laying hen feed is characterized by being prepared from the following raw materials in parts by weight: 1-2 parts of methionine, 0.5-1.5 parts of lysine, 0.3-0.5 part of multivitamin, 2-3 parts of feeding sodium chloride, 1-3 parts of sodium bicarbonate, 8-12 parts of monocalcium phosphate, 0.05-0.15 part of vitamin E, 0.10-0.14 part of antioxidant, 1.5-2.5 parts of compound trace element, 0.2-0.3 part of phytase, 0.03-0.07 part of bacillus subtilis, 1.63-2.03 parts of rice chaff, 1.0-1.5 parts of choline chloride, 0.5-1.5 parts of calcium formate, 0.3-0.7 part of calcium lactate and 0.3-0.7 part of calcium butyrate.
2. The laying hen feed according to claim 1, comprising the following raw materials in parts by weight: 1.5 parts of methionine, 1 part of lysine, 0.4 part of vitamin complex, 2.5 parts of feeding sodium chloride, 2 parts of sodium bicarbonate, 10 parts of monocalcium phosphate, 0.1 part of vitamin E, 0.12 part of antioxidant, 2 parts of compound trace elements, 0.25 part of phytase, 0.05 part of bacillus subtilis, 1.83 parts of rice chaff, 1.25 parts of choline chloride, 1 part of calcium formate, 0.5 part of calcium lactate and 0.5 part of calcium butyrate.
3. The laying hen feed of claim 1 or 2 wherein the antioxidant is t-butyl hydroxyanisole.
4. The laying hen feed of claim 1 or 2, wherein the complex trace elements comprise copper methionine, iron glycinate, manganese methionine, zinc methionine, sodium selenite, calcium iodate.
5. The laying hen feed of claim 4, wherein the composite trace elements comprise, by weight: 1.6% of methionine, 20% of glycine iron, 16.1% of methionine manganese, 13% of methionine zinc, 0.06% of sodium selenite, 0.08% of calcium iodate and the balance of stone powder carrier.
6. The feed for laying hens as claimed in claim 1 or 2, wherein said vitamin complex is prepared from vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, vitamin B12, nicotinic acid, pantothenic acid, folic acid, and biotin.
7. The laying hen feed of claim 6, wherein the multivitamins comprise, in weight percent: vitamin A accounts for 5.5 percent of the total weight of the compound vitamin, vitamin D3 accounts for 2 percent of the total weight of the compound vitamin, vitamin E accounts for 20 percent of the total weight of the compound vitamin, vitamin K3 accounts for 1 percent of the total weight of the compound vitamin, vitamin B1 accounts for 0.7 percent of the total weight of the compound vitamin, vitamin B2 accounts for 2 percent of the total weight of the compound vitamin, vitamin B6 accounts for 1.2 percent of the total weight of the compound vitamin, vitamin B12 accounts for 0.6 percent of the total weight of the compound vitamin, nicotinic acid accounts for 11 percent of the total weight of the compound vitamin, pantothenic acid accounts for 4.4 percent of the total weight of the compound vitamin, folic acid accounts for 0.35 percent of the total weight of the compound vitamin, biotin accounts for 1.2 percent of the total weight of the compound vitamin, and the rest part is rice bran oil injection.
8. A method of preparing a laying hen feed according to any one of claims 1 to 7, comprising the steps of:
(1) weighing the raw materials according to the weight of the raw materials for later use;
(2) the components are added in sequence according to the weight ratio from large to small, and are mechanically mixed step by step and fermented to obtain the laying hen feed.
9. The method of producing layer feed according to claim 8, wherein in step (2), the water content of the layer feed is 28-32%.
10. The method for producing laying hen feed according to claim 8, wherein in the step (2), the fermentation is carried out at 35-40 ℃ for 3-5 days.
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