The role of microbial fermentation technology in feed

With the rapid development of animal husbandry in China, people's dietary structure and animal food consumption have changed significantly, while the consumption of animal products production resources is increasing year by yearThe problems of more people and the shortage of feed raw materials are always the main factors restricting the development of animal husbandry in China, therefore, China's feed industry and animal husbandry should take the road of sustainable, stable and rapid development, we must pay attention to the development and utilization of unconventional feed resourcesit is understood that China's annual total amount of slag as much as 170 million t, of which can be done in the refined slag 1.4t, coarse slag 0.3 million t, is a huge feed resources, but has not yet been rational use, or even abandoned as a major environmental pollution sourceTo improve the utilization rate and value of unconventional feed resources such as scum, we can't do without biotechnology, enzyme solutions and fermentation technology, especially fermentation technology and products, and the application in culture has made a series of progress and achievements, and the combination of bacteria and bacteria is one of the core of fermentation technology"?text-align: center;"img src""alt" "The role of microbial fermentation technology in feed" title"""the role of microbial fermentation technology in feed" -the classification of non-conventional feed raw materials mainly derived from agricultural and by-products and by-products of the food industryAccording to their nutritional characteristics, mainly divided into:1Unconventional energy feed raw materials2Unconventional plant protein feed raw materials3Unconventional animal protein feed raw materials4Food industry by-productsunconventional biofeed as a relatively new type of feed, in the 21st century has been more and more attention of feed science and technology workers, with broad application prospectsIts characteristics and advantages are mainly reflected in the following aspects: 1 improve feed characteristics, improve feed commodity value microbial fermentation technology can change plant nature, animal non-conventional feed physical characteristics, after fermentation feed has a natural fermentation flavor, good effect, can significantly improve the feed palatability and use in the proportion of food, improve the appearance of unconventional feed, improve the appearance of commodity value 2 Improve the protein content of feed, change the quality of protein straw, shell non-conventional feed protein content is low, although the pie meal, animal non-conventional feed protein content is high, but its quality is poor, not conducive to the digestion and absorption of livestock Microbial fermentation technology can improve the protein content and quality in unconventional feed, the proportion of soluble protein in feed can be increased by 20% to 30%, and the low quality protein in plant-based and animal raw materials can be converted into active peptides, oligopeptides and other better quality proteins 3 Reducing the content of coarse fiber in feed non-conventional feed generally contains lignin, cellulose and other carbohydrates that livestock are difficult to use, and is only suitable for raising herbivores, and the utilization rate is low The use of bacteria, yeast, silky fungi and other microorganisms fermentation unconventional feed, can reduce the content of lignin in the feed, into absorbable carbohydrates, improve the taste of feed 4 Improving animal immunity increased animal immunity is very important for the aquaculture industry, in the past few decades, animal farming has become too dependent on drugs such as antibiotics, creating many problems, the heavy use of antibiotics by farmers not only does not make livestock and poultry resistant to disease, but also reducetheir in their resistance to disease It is reported that some unconventional feeds such as straw and slag are fermented by microorganisms, producing rich vitamins, enzymes, nutrients and some important cofactors, which play a significant role in improving the internal environment of ruminant tumor stomachs, stimulating the reproduction of certain beneficial bacteria, promoting animal growth and improving production performance The beneficial microbial microbiome ingested by animals will regulate the intestinal micro-ecological environment and pathogens to compete for the site, inhibit the growth of other harmful bacteria and pathogenic bacteria, enhance the body's resistance to disease, and improve the micro-ecological environment in the gastrointestinal tract Although the microbial fermentation unconventional feed has many advantages, but in the process of development and application there are some problems: first, feed production seed resources are not fully developed, the utilization rate of unconventional feed raw materials and renewable rate is still low second, the feed production process is not mature enough, lack of scientific processing methods third, the stability of feed products is poor, lack of feed products nutritional value evaluation standards, sales market is not standardized All these problems need to be further studied and solved the current shortage of feed resources has become an important factor restricting the development of china's animal husbandry, and it is urgent to actively develop and utilize new feed resources The development of unconventional feed resources by microbial fermentation technology can not only solve the shortage of feed resources, but also produce new feed with high added value, which can play a certain role in promoting the development of china's green animal husbandry Source: Beijing Weijia Micro-