Biological polypeptide for replacing plasma protein in feed

Abstract

The invention relates to a biological polypeptide capable of replacing plasma protein in a feed. The biological polypeptide comprises the following components: a soybean polypeptide, a yeast hydrolysis complex and a composite microecological preparation, wherein the soybean polypeptide is prepared by the steps of deeply fermenting soybean meal by bacillus subtilis, and then adding neutral protease and performing enzymolysis; the yeast hydrolysis complex is prepared by the steps of adding water and sugar into dry yeast used as a raw material, activating, then adding an additive into an activated substance, and finally preserving heat and enzymolyzing the activated substance; and the composite microecological preparation is lactic acid bacteria and / or saccharomycetes and / or Bacillus licheniformis. The product can completely replace the plasma protein in suckling pig feeds, provide a high-quality protein raw material for the feeds, and can improve the immunity of piglets, reduce diarrhea, promote growth, reduce feed conversion ratio, and increase breeding benefit at the same time.

Description

technical field [0001] The invention relates to a biological polypeptide that replaces plasma protein in feed, and belongs to the technical field of biological enzymolysis and fermentation. Background technique [0002] The safety issues of high-quality protein raw materials and the shortage of resources are important factors restricting the development of feed. It is of great significance to use modern biotechnology to develop high-quality plant-based protein and gradually replace animal protein. [0003] Plasma protein powder is a powder product made by spray-drying the blood plasma after separation of red blood cells from animal blood (usually pig blood or cow blood). Among them, it contains 78% crude protein, the digestibility is as high as 90%, and 7% lysine. The content of other amino acids is rich and balanced. It has the effect of preventing diarrhea and promoting growth of early weaned piglets, so it is widely used in the feed of weaned piglets, especially when th...

AI Technical Summary

Problems solved by technology

There is a large demand gap for plasma protein powder;

[0005] (2) Biosafety issues

[0007] (1) The technical standards are not clear, and there are few studies on the mechanism of action;

[0008] (2) It has not been able to completely replace plasma protein;

[0009] (3) Failure to form large-scale products;

[0010] (4) Imperfect application technology, etc.