Preparation method of probiotics for feed

Abstract

The invention discloses a preparation method of probiotics for feed, and belongs to the technical field of microorganisms. In order to solve the problems of limited effect and high manufacturing process cost of probiotics for the existing feed, the method comprises the following steps: preparing a culture medium and sterilizing; inoculating a fermenting agent; carrying out fermentation culture for24-48 hours; enriching the thalli and suspending the thalli into a bacterial suspension by using normal saline; preparing a protective agent; carrying out heat stress treatment on the bacterial suspension; and spray drying with a fluidized bed: adding the bacterial liquid added with the protective agent into a spray fluidization dryer for drying to obtain the mixed bacterial preparation. Mixed fermentation culture of the strains is carried out by utilizing the demand difference of the strains on oxygen. The probiotics for the feed are prepared on the basis of a mixed bacteria fermentation technology, a heat stress technology and a spray drying zone fluidized bed technology. Compared with a preparation method of probiotics for a traditional feed, the preparation method disclosed by the invention has the advantages that the types of the probiotics are enriched, the synergistic effect among strains is promoted, the formation of bacillus spores is promoted, and the viability of thalli isimproved.

Description

technical field [0001] The invention belongs to the technical field of microorganisms, and in particular relates to a preparation method of probiotics for feed, which is applied to the production of probiotics for feed. Background technique [0002] my country is a big country in agriculture and animal husbandry, and the production and consumption of animal source food is very huge. With the improvement of living standards, the proportion of fish, poultry, meat, eggs, milk and other animal source foods in the diet continues to increase, and the proportion of meat consumption in the diet is increasing year by year. With the continuous development of intensive farming, the amount of livestock and poultry breeding has continued to increase, meeting the needs of consumers, but some problems have gradually emerged. The expansion of breeding scale and the concentration of breeding density have increased the threat of animal diseases. Therefore, enhancing animal immunity and impro...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of limited effect and high production process cost of the existing probiotics for feed, and provides a preparation method of probiotics for feed, which utilizes mixed-bacteria fermentation to promote the synergistic growth among strains and enriches the types of probiotics; Utilize spray to coordinate fluidized bed drying to reduce drying times and save cost