Biological efficient mixed protein feed as well as preparation method and application thereof

Abstract

The invention relates to the technical field of preparation of biological feed and in particular relates to biological efficient mixed protein feed as well as a preparation method and application thereof. The method comprises the following steps: 1) preparing a compound protein substrate; 2) preparing a compound fermentation bacterium solution; 3) inoculating the bacterium solution obtained by step 2) into a compound protein raw material in step 1); 4) fermenting the compound protein raw material inoculated with the bacterium solution in step 3) to form fermented compound protein; 5) carryingout low-temperature drying on the fermented compound protein obtained by step 4) and crushing to form a biological efficient mixed protein feed finished product. According to the biological efficientmixed protein feed provided by the invention, a proper strain and a proper enzyme are compounded to carry out fermentation, and a low-temperature drying technology is adopted, so that the bioactivityof a metabolic product after fermentation is greatly improved, and the quantity of viable bacteria and the content of acid-soluble protein are about three times of that of common fermented protein type products; the content of glycinin and beta-conglycinin in the product is degraded by about 65 percent and is one time or more than one time of that of like products; the content of free gossypol islower than 500mg / kg and is degraded by 75 percent or more, and the capability of digesting and absorbing vegetable protein by animals can be remarkably improved.

Description

Technical field [0001] The invention relates to the technical field of biological feed preparation, in particular to a biological high-efficiency mixed protein feed and a preparation method and application thereof. Background technique [0002] Protein is an essential nutrient element for animal growth. Obviously, protein raw materials are the largest and one of the most important raw materials in animal diets. With the development of animal husbandry and feed industry, protein raw materials are gradually being standardized. At present, the most used vegetable protein source is soybean meal, and the animal protein source is fish meal. In terms of local resources, the quantities of soybean meal and fishmeal are very limited, and most of them rely on imports. This has brought great problems to China’s animal husbandry. China has a large population and limited arable land resources. In a short time, expanding the area of ​​arable land can solve the problem of vegetation. The lack...

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Problems solved by technology

The physical method has a good effect on the elimination of gossypol, but the effect on the antigenic protein is poor; the use of the chemical method will produce substance residues, which will have toxic and side effects on the body; the enzymatic method will produce bitterness and odor, which will affect the palatability; microbial fermentation method can effectively Removing the anti-nutritional factors in soybean meal, meanwhile microbial fermentation produces a variety of beneficial bacteria and aromatic odors, improving the palatability and absorption utilization of feed is a current research hotspot

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