Compared with the current price of feed raw material, how to use feed efficiently is more important. Adopting the method of biotechnological solid fermentation can effectively solve the problem of increasing feed utilization.
The use of solid fermentation feed has the following functions: 1. The inorganic phosphorus in the feed fiber can be transformed into an absorbable organic phosphorus through microbial fermentation. 2. Improve enzyme activity in animal digestive tract; 3. The medium of fermentation products can be effectively applied to animal feed, which is a relatively stable product.
Agricultural by-products are a wide range of medium, such as wheat bran, DDGS, soybean shells, rice husks, etc., which are commonly used as feed ingredients. The medium can be degraded by using its own endogenous enzyme. Solid fermentation can effectively help animals to use feed, which can effectively reduce feed cost by adding feed.

Efficient use of grain
Livestock are not able to make full use of grain. For example, the digestive capacity of a pig is 15-25%. The limiting factor is that single-stomach animals cannot degrade cellulose in feed. Fiber includes non-starch polysaccharide, cell wall and hemicellulose and pectin and lignin, which are the main components of fiber and hemicellulose. Through solid fermentation, fungi can effectively degrade cellulose and semi-fiber, thus effectively utilizing their sugars and energy. Solid fermentation products can provide animals with more energy from fiber. Meanwhile, a certain amount of protein can be used in the fermented feed bag. The addition of solid fermentation feed can improve the digestion of feed protein and meet the needs of animals.
Complex formula
The complexity of the formula limits the animals' digestion of the feed. The main reason is that phytic acid and mineral, starch and protein form chelate, reduce digestibility. By adding solid fermentation feed to pigs, it can reduce the emission of nitrogen by 15%.
The commercial trial
Through the feeding experiment of adding solid ferment to pig feed, it was found that the feed utilization rate could be improved significantly. For example, wheat bran and soybean husk fermented feed contain 90 kcal /kg of energy and 0.15% of effective phosphorus. Solid fermentation feed can improve feed conversion rate. Studies in Switzerland have found that solid fermentation feed can increase the growth rate of fattening pigs and improve the utilization of phosphorus.