Method for preparing Bacillus Subtilis fermented mixed feed for birds

Abstract

The invention discloses a preparation method of a bacillus subtilis fermented mixed feed for poultry. The method comprises the following steps: (1) the bacillus subtilis is cultivated to become a primary seed by broth culture; (2) the primary seed liquid is in amplification culture by the broth culture to become a secondary seed; (3) the secondary seed liquid is in fermentation culture by the broth culture to become a tertiary seed; (4) rice bran, wheat bran and crushed corn are mixed, and then are evenly mixed with the tertiary seed liquid, the mixture is further fermented and cultivated to obtain a first fermented feed; (5) the first fermented feed is mixed with bean cakes, the wheat bran, fish meal, bone meal, conch powder and common salt to obtain the bacillus subtilis fermented mixed feed for the poultry. The method of the invention has the advantages of improving the nutritional components of a coarse feed and causing the vegetable fiber to be transformed into small molecules which are easy to be absorbed by the poultry. By applying the mixed feed prepared by the method to the poultry, the mixed feed can promote the growth of the poultry without using antibiotics and hormone.

Description

technical field [0001] The invention relates to a preparation method of microbial fermented mixed feed, in particular to a preparation method of poultry Bacillus subtilis fermented mixed feed. Background technique [0002] For the feed used in poultry breeding, on the one hand, it is necessary to consider the nutrients in the feed to improve the cost performance of the feed, and on the other hand, it is also necessary to consider whether the feed itself can improve the resistance of the poultry to pathogenic microorganisms. Ordinary feeds are often added with "three elements". That is: antibiotics, hormones and vitamins, but the abuse of "three elements" will affect the quality of poultry meat and eggs as human food, causing potential harm to humans. Therefore, there is an urgent need for a nutrition that can improve roughage. Composition, so that the plant fiber can be transformed into a feed that is easily absorbed by poultry with small molecules and can improve the resist...

AI Technical Summary

Problems solved by technology

[0002] For the feed used in poultry breeding, on the one hand, it is necessary to consider the nutrients in the feed to improve the cost performance of the feed, and on the other hand, it is also necessary to consider whether the feed itself can improve the resistance of the poultry to pathogenic microorganisms. Ordinary feeds are often added with "three elements". That is: antibiotics, hormones and vitamins, but the abuse of "three elements" will affect the quality of poultry meat and eggs as human food, causing potential harm to humans. Therefore, there is an urgent need for a nutrition that can improve roughage. Composition, so that the plant fiber can be transformed into a feed that is easily absorbed by poultry with small molecules and can improve the resistance of poultry