Application of functional microbial fermentation products in farms

  & nbsp; 1 common problems in farms  & nbsp; 1.1 the most worrying nutritional problem of the farm is insufficient food intake. Pigs in the nursery period often don't like to eat. Even at the stage of medium and large pigs or sows, there will be food intake problems. For example, if the weather is hot, the feed intake of pigs will be adversely affected& nbsp; & nbsp; 1.2 the most common health problem in the farm is diarrhea  & nbsp; The weather changes from cold to hot; Or livestock and poultry groups have epidemic bacterial and viral infections, and farms are prone to diarrhea. Whether diarrhea is serious or not, it will affect the production performance of livestock and poultry to varying degrees& nbsp; & nbsp; 1.3 environmental problems are a headache for the management of farms  & nbsp; Whether in summer or winter, livestock and poultry feces will produce bad smell. Especially when the enclosure is closed in winter, the excessive ammonia produced by feces can cause respiratory diseases of livestock and poultry& nbsp; & nbsp; 2. It is difficult to solve all problems with the usual solutions  & nbsp; The feed intake of pigs is related to production performance and breeding efficiency, which is the most difficult problem to solve. Feed enterprises add enough flavoring agents, sweeteners and other food attractants, which can not ensure that the pigs maintain sufficient food intake. Because the palatability of any suckling pig feed cannot be compared with that of milk. In addition, there are too many factors affecting the feed intake of pigs, such as moldy raw materials, body health and so on. To solve the problem of diarrhea, the most common way for farms is to add therapeutic antibiotics through drinking water or mixing materials. The advantage of adding antibiotics is fast and efficient. The adverse consequence is that long-term addition will increase drug resistance and affect the growth, development and production performance of animals& nbsp; & nbsp; Farms will also have the phenomenon of imbalance of intestinal flora due to excessive medication. To regulate the intestinal health of pigs, probiotics will play its unique role. In the application process of microecological agents, there will be problems such as losses caused by high temperature granulation, high addition cost, unstable application effect and so on& nbsp; & nbsp; 3 functional fermentation technology came into being  & nbsp; Functional biological fermentation technology, that is, the nutrient substrate deep fermentation technology, is to combine the conditioning function of microecological agents with the therapeutic function of antibiotics to produce functional fermentation products and strengthen the application effect of fermentation products. In anaerobic environment, beneficial bacteria such as bacillus, lactic acid bacteria and yeast can reach the concentration of billions of units through rapid propagation and amplification through nutrient rich substrate culture, which can play the conditioning role of microecological agents& nbsp; & nbsp; On the rich nutrient substrate, the above-mentioned high concentration bacteria continue to be deeply fermented, and a large number of metabolites will be produced. For example, lactic acid bacteria will produce a large number of organic acids such as lactic acid; Various flora will produce a large number of highly active metabolites, such as Lactobacillin, bacillus, etc. These metabolites, with the effect of antibiotics, can resist the killing effect of antibiotics and the destructive effect of high temperature& nbsp; & nbsp; The fermentation substrate can use various feed raw materials, which is rich in nutrition, conducive to the development of bacteria, and can promote the fermentation effect. Through the fermentation process, the utilization efficiency of various nutrients in the fermentation substrate can be improved. Adding fermentation substrates and fermentation products together can reduce the addition cost and improve the feeding effect& nbsp; & nbsp; 4. Effect of functional fermentation products on farms  & nbsp; The composition of functional fermentation products is a sufficient amount of various beneficial bacteria, plus a large amount of organic acids, as well as a large number of active metabolites, which are summarized as "highly active bacteria, high lactic acid, metabolites"& nbsp; & nbsp; There have been many discussions on the role of high-dose live bacteria, mainly in balancing intestinal flora, regulating intestinal health, improving body immunity, etc., which will not be repeated here& nbsp; & nbsp; High lactic acid and metabolites can promote the intake of mammals and milk production of female animals; High lactic acid and high viable bacteria can inhibit harmful intestinal bacteria, regulate intestinal health, and improve the body's immunity. Naturally, animal diarrhea is less. For sows, it can significantly reduce the incidence of constipation& nbsp; & nbsp; High content of fermentation metabolites can resist the destructive effects of antibiotics and high temperature, so it can be used in combination with therapeutic drugs (such as norfloxacin for diarrhea) to improve the therapeutic effect; It can also be applied to steam granulation and cold granulation, and still has a good application effect& nbsp; & nbsp; The synergy of the three components in the functional fermentation products can also promote the growth rate and transformation efficiency of animals, such as egg production rate and milk production, weight gain rate and feed meat ratio& nbsp; & nbsp; There are fewer harmful bacteria in the feces, which also reduces the production of amines, the taste of feces is also reduced, the pollution to the breeding environment is reduced, and it is also conducive to the health of animals to varying degrees& nbsp; & nbsp; Now the promotion of good fermentation bed technology is to solve the problem of breeding environment. To fundamentally solve the health problems of animals, we must start with intestinal health. Functional fermentation products have the functions of living bacteria, lactic acid and metabolites. They can solve intestinal and environmental problems at the same time, and their comprehensive effects are clear at a glance& nbsp; & nbsp; The factors that affect the meat quality and egg quality of animals include harmful gases in the environment, the content of toxins in the body, and the health status of the body. Functional fermentation products can improve the quality of meat and eggs by reducing intestinal toxins, improving immunity and reducing the content of harmful gases in the environment. This effect has been widely confirmed in the production of organic eggs and meat& nbsp; & nbsp; 5. Design and types of functional fermentation products  & nbsp; The fermentation substrates of functional fermentation products include starch, sugars, fats, proteins, etc. By mixing substrate components, fermentation strains and fermentation conditions, different kinds of living bacteria and their metabolites can be fermented, as well as fermentation substrates with different nutritional components& nbsp; & nbsp; If classified by fermentation substrate, it can be divided into fermented corn and wheat, fermented soybean meal and miscellaneous meal, etc. If classified by animal species, fermented products can be divided into meat animals, dairy animals, eggs and poultry, fur animals and so on. If classified by animal stage, it can be divided into juvenile type, adult type and reproductive type fermentation products. Functional fermentation technology usually adopts solid fermentation process, anaerobic fermentation under the conditions of 30% - 40% moisture and high temperature. Keeping the moisture in the functional fermentation products can maximize the activity of the products and avoid the high cost of low-temperature drying. At present, the fermented soybean meal commonly used in the market is fermented by anaerobic lactic acid bacteria in a short time, and the fermentation products are less. After high-temperature drying, the few active ingredients in fermented soybean meal have been completely destroyed, so it can only be called primary fermentation raw materials. Most of the fermentation materials on the market are also short-term fermentation, mainly live fermentation bacteria. The bigger problem is that there are less lactic acid and metabolites. Therefore, it is difficult to bear high temperature and the killing effect of antibiotics, which can only be called primary fermentation products& nbsp; & nbsp; Discussion on the application scheme of functional fermentation products  & nbsp; Application of functional fermentation products with high moisture content in farms most large-scale farms use self batching mode. In this way, high moisture functional fermentation products can be added directly to powdered feed by replacing corn, soybean meal and other raw materials. It is prepared and used now, with high activity and good effect. This is the most common application method of fermented products at present& nbsp; & nbsp; Now granular materials are developing rapidly, which is the most potential customer group. How to add functional fermentation products with moisture to granular materials is a big problem& nbsp; & nbsp; A potential application mode is cold granulation application mode. Let the farm adopt cold granulation equipment, add functional fermentation products with water to the self ingredients by replacing corn, soybean meal and other raw materials, and the farm processes granular materials by itself. The fermentation granules produced in this way, strong activity and good application effect. This technology has been successfully developed and is being widely promoted& nbsp; & nbsp; Another application method is to process the functional fermentation products with water into fermentation granular materials, and then add them to the granular materials of the farm. The two particles are mixed evenly and then applied. The difficulty of this method is how to process the functional fermentation products with water into fermentation granules, preserve the high active ingredients, and have a long enough shelf life. This application technology has high difficulty and great application prospect, and is being developed and improved< br/>