Lactobacillus buchneri and application thereof in preparation of low-moisture fermented feed

Abstract

The invention relates to lactobacillus buchneri and application thereof in preparation of low-moisture fermented feed, and provides lactobacillus buchneri TZ-LB-017, the lactobacillus buchneri is used for preparing mixed bacterial liquid, and the low-moisture fermented feed is prepared through adoption of a two-step method, namely, part of raw materials are inoculated with a bacterial enzyme leavening agent at first, other raw materials, stone powder, calcium hydrophosphate, sodium chloride, amino acid, premix and the like are mixed and then subjected to secondary fermentation, the two-step fermentation can promote the stability of the viable count, is more beneficial to production of organic acid, digestion and absorption of beneficial substances such as enzyme and the like, and is beneficial to the stability of vitamins and mineral substances; the low-moisture fermented feed prepared by adopting the preparation method disclosed by the invention can be prevented from mildewing for at least 90 days, and has remarkable advantages in the aspects of acid production, harmful bacterium inhibition and synergistic effect with other probiotics; and the low-moisture fermented feed disclosed by the invention is mixed with a conventional feed for feeding, and the low-moisture fermented feed accounts for 40-60% of the weight of the mixed feed, so that the low-moisture fermented feed has a remarkable promoting effect on improving the production performance of livestock and poultry.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a lactobacillus brauchneri and its application in the preparation of low-moisture fermented feed. Background technique [0002] Fermented feed has been widely used in many foreign countries. At present, more than 60% of large-scale pig farms in the Netherlands are using fermented feed, more than 30% of sows in Denmark use fermented feed, and about 15% of pig farms in France use fermented feed . The research and application of bio-fermented feed in my country has also become a research hotspot in my country's animal husbandry industry. However, while the fermented feed industry is developing rapidly, there are also many problems in actual production and application. Among them, easy mold and deterioration during storage and use are important factors that hinder the wide application of fermented feed. Mildew will not only lead to a decline in the palatability and nutritio...

AI Technical Summary

Problems solved by technology

There have been many studies on the fermented feed of a single raw material, and the application of fermented full-price feed is more convenient, but there are two problems in actual production. One is that the direct fermentation of full-price feed as the fermentation substrate may easily lead to the loss of nutrients such as vitamins; The second is that the conventional fermentation process is prone to insufficient fermentation, the degree of fermentation is shallow, and the moisture is more than 30%. High moisture is not only difficult to stir during use, but also prone to mildew during use and storage.

The third is the lack of high-quality fermentation strains or starters. Strains are the key factors in feed fermentation technology, and the quality of strains directly determines the effect and quality of fermented feed.

Images