Method for preparing feed additive by using bacillus licheniformis

Abstract

The invention provides a method for preparing a feed additive by using bacillus licheniformis. The method comprises the following steps of: preparing and activating a strain, preparing a strain with an inclined surface, preparing a triangular flask liquid strain, fermenting a canned solid and the like so as to obtain the feed additive. By adopting a unique culture medium and a solid fermentation technique, the strain propagation speed is accelerated, the fermentation period is shortened, the production cost is lowered, and the spore forming rate of a product is increased; a cheap medium such as bran is used as a main culture substrate, so that the production cost is effectively lowered; the production process has the unique advantages of water conservation, energy conservation, small quantity of byproducts and environment friendliness; and the production cost is low, the product is resistant to high temperature, acid, alkali and extrusion, is small in damage in the preparation process of the feed, small in adding quantity and remarkable in feeding effect, so that the method belongs to a sanitary production technique and has large-scale popularization and application values.

Description

technical field [0001] The invention relates to the field of feed additives for feeding, in particular to a method for preparing feed additives by using bacillus licheniformis. Background technique [0002] Farmers often add a large amount of antibiotics to the feed in order to prevent diseases when raising poultry and livestock. As a result, the abuse of antibiotics is inevitable, resulting in drug residues in animals, which eventually accumulate in human bodies through the food chain, posing a serious threat human health. Studies have shown that Bacillus licheniformis is a kind of probiotics, and the preparations made of it can play the following roles when added to feed: ① Bacillus is an aerobic beneficial bacterium, which can form spores in unfavorable environments and is resistant to high temperatures. , resistant to acid, alkali and temperature changes, can quickly revive after entering the intestinal tract; and can quickly consume limited oxygen in the environment by...

AI Technical Summary

Problems solved by technology

However, solid fermentation technology is difficult, and it is not easy to produce high-quality bacillus preparations

The current production process of bacillus preparations and the formulation of the fermentation medium produce preparations with low live bacteria content and a short validity period, which makes it difficult for the product to achieve ideal disease prevention and growth promotion effects

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