For a long time, the following issues have long plagued the livestock breeding and production industry:
1. Intestinal diseases caused by infection with Salmonella, E. coli, and other harmful bacteria;
2. The application of chemical substances, especially antibiotics and other drugs, will damage the quality of livestock and poultry products;
3. Environmental pollution caused by improper handling of livestock and poultry excrement and deterioration of feeding environment;
Domestic and foreign scientific and technological workers have been trying hard to explore and trying to find an economic and effective way to overcome it. By comprehensively comparing existing measures, the methods for applying microbial preparations that have emerged at home and abroad in recent years are not only broad-spectrum and significant, but also easy to use, low-cost, high-return, safe and reliable, without any side effects, etc. Advantages can enable the coordination and improvement of economic benefits, social benefits, and ecological benefits. It is conducive to the establishment of a sustainable socio-economic structure and has broad prospects for development and application.
As a new generation of environmentally-friendly feed, microbial feed additives have been used in Beijing, Hebei, Tianjin, Gansu and Ningxia by relevant scientific research institutions and have achieved good results. Its main components are lactic acid bacteria, Bacillus subtilis, actinomycetes, yeasts and other beneficial bacteria, which are isolated from fertile soil and cultivated and expanded. It can be used as pigs, chickens, cattle and ducks. And fish, shrimp and other aquaculture feed use.
The basic principle of microbial feed additives:
The animal's digestive system, especially in the intestines, has hundreds of species, and tens of billions of bacteria form intestinal flora. It has a close relationship with animal health. Intestinal flora plays a role in various nutritive physiology while also inhibiting the proliferation of pathogens and other defense against infection. The occurrence of coliform disease, salmonellosis, and clostridial enteritis in livestock is closely related to the state of intestinal bacteria. Therefore, maintaining the balance of intestinal flora is essential to maintaining animal health. It is closely related to the improvement and improvement of various indicators in the production of livestock and poultry.
The microbial feed additive is a microbial product that replaces or balances one or more strains in the animal ecosystem. In a narrow sense, it is a kind of microbial product that can stimulate the growth of its own beneficial bacteria and at the same time resist the growth of harmful bacteria.
It contains a large number of beneficial microorganisms such as lactic acid bacteria, yeast, etc., which can be quickly propagated as feed into livestock and poultry. On the one hand, it is put into the metabolites of the bacteria and enterotoxins, which inhibits the growth of other harmful bacteria. On the one hand, normal microbial flora is formed in the host body to synthesize the main vitamins for the host, provide nutrition and prevent the invasion of pathogenic bacteria.
After microbes enter a micro-ecological system (livestock and poultry), they can settle there, grow and reproduce, and become a normal microflora to form a stable micro-ecosystem that is ecologically balanced among microorganisms, hosts, and the environment; It depends on whether the organism and the host both have colonization conditions. In general, livestock and poultry are most susceptible to the influence of exotic beneficial microorganisms during their early years, accelerating the establishment of normal populations in the body, favoring the growth of organisms and the improvement of disease resistance. During the experiment, we also found that when the feed was fed from a young chick, the effect was the best, and the reason was also here. Therefore, when using microbiological feed additives, it is necessary to have a good grasp of the use time. For example, pigs should be used for sows before birth, and chickens should be used at the time of brooding.
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