Amino acid polypeptide feed and preparation method thereof

A polypeptide feed and amino acid technology, applied in animal feed, animal feed, applications, etc., can solve the problems of high-pressure damage and denaturation of protein, high energy consumption, etc., and achieve the effects of helping growth, high protein nitrogen content, and high protein nitrogen recovery rate

Inactive Publication Date: 2019-04-16
BIOGAS SCI RES INST MIN OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method also has the disadvantages of high energy consumption and protein denaturation under high pressure.

Method used

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  • Amino acid polypeptide feed and preparation method thereof
  • Amino acid polypeptide feed and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The anaerobic keratin-degrading bacteria 18D-TA was cultivated to obtain the fermented seed liquid; the feather and the fermented seed liquid were mixed according to the mass / volume ratio of 1:1; cultivated at 55°C for 20h; kept at 85°C for 4h; added bran 10% is prepared into amino acid polypeptide feed. After testing, the feed is rich in free amino acids, polypeptide proteins, organic acids and other nutritional components required by animals. Among them, the content of hydrolyzed amino acids is 76.9-80.3%, the content of acid-soluble proteins is 26.9-27.8%, and the content of polypeptide proteins is 20.6-21.6%. , free amino acid content 7.4-8.4% ( figure 1 ).

Embodiment 2

[0036] Cultivate anaerobic keratin-degrading bacteria 18D-TA to obtain fermented seed liquid; mix feather and fermented seed liquid at a volume ratio of 1:5; culture at 55°C for 16 hours; keep warm at 85°C for 3 hours; add 5% corn flour , 5% of bran is prepared into amino acid polypeptide protein feed. After testing, the protein feed contains 76% of hydrolyzed amino acid, 16% of acid-soluble protein, 13% of polypeptide protein, 5% of free amino acid, and protein digestibility of 75%.

Embodiment 3

[0038] In this embodiment, the meat ducks at the age of 0 weeks, body weight and physical condition are basically the same with the feed obtained in the present invention. The feeding method is as follows: the control group is fed with a conventional corn soybean meal basal ration, and the experimental group is replaced by the feed obtained in the present invention by 30%. The basal diet, 20 per group.

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Abstract

The invention provides an amino acid polypeptide feed and a preparation method thereof. The method comprises the steps that a fermentation culturing medium is prepared, strains are inoculated, and fermentation seed liquid is prepared; keratin substances which are washed and dried are mixed with the fermentation liquid, and culturing is conducted for 0-24 hours at the temperature of 55 DEG C; afterfermentation culturing is completed, the reaction temperature is adjusted to 70-90 DEG C, and the temperature is maintained for 2-6 hours; sterilization and enzyme inactivation treatment are conducted on products; auxiliaries are added to the products, drying and pulverizing are conducted, and the feed is prepared. The method has the advantages that microorganism fermentation features and protease enzymatic property features are effectively combined to inhibit the conversion of protein nitrogen to inorganic nitrogen to the greater extent to convert insoluble keratin into nutritious substancesof polypeptide proteins, amino acid and the like to help the absorption and digestion of poultry and growth, and the growing rate of the poultry is improved.

Description

technical field [0001] The invention belongs to the technical field of polypeptide feed, and in particular relates to an amino acid polypeptide feed and a preparation method thereof. Background technique [0002] Protein feed refers to feed with natural moisture content lower than 45%, dry matter crude fiber lower than 18%, and crude protein content in dry matter not less than 20%. my country's livestock and poultry breeding industry needs a large amount of protein feed. At present, the main sources of protein in protein feed are soybean meal, fermented cotton meal, etc. However, with the shortage of food resources, the cost of this type of protein feed continues to rise. A new protein feed is of great significance. [0003] The crude protein content in keratin is usually above 85%, about 2-5% sulfur, 15-18% nitrogen, 3.2% mineral elements and 1.27% lipid, rich in leucine and valine Acid, threonine, methionine, phenylalanine, tryptophan, lysine and other biological amino ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/12A23K10/26
CPCA23K10/12A23K10/26
Inventor 黄艳邓宇马诗淳
Owner BIOGAS SCI RES INST MIN OF AGRI
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