In order to prevent piglet diarrhea caused by trace elements and vitamin deficiency, it is necessary to reasonably add a certain amount of trace elements and vitamins in the diet. Zinc, copper, selenium, vitamin E and biotin are critical for anti-diarrhea in weaned piglets. Some of them are by improving the conversion efficiency of feed. Enhance the body and immunity of the pig to play a role, and some directly have antibacterial and antibacterial effects. The proper amount of these substances has obvious effects on the prevention of diarrhea, and the specific addition amount is used according to the feeding standard. Copper can reduce intestinal urease activity, and zinc can kill bacteria and thus prevent diarrhea.
Piglets are under-digested by digestive enzymes due to changes in weaning stress and dietary composition. In addition, stress has a declining effect on the growth of digestive enzyme activity. therefore. It is necessary to add exogenous enzymes to assist digestion, improve feed digestibility, and reduce indigestion. Enzyme preparations currently used include pepsin, cellulolytic enzymes, saccharide-degrading enzymes, amylases and the like. By adding proteases and amylases, it can make up for the deficiency of endogenous digestive enzymes and improve the utilization of protein and carbohydrates. An exogenous enzyme such as cellulolytic enzyme or xylanase is added. It can improve the digestibility of oligosaccharides in the diet which cannot be decomposed by animals, and can degrade anti-nutritional factors, reduce the viscosity of the intestines, promote the digestion and absorption of nutrients, eliminate indigestion and reduce the occurrence of diarrhea.
When the piglets are fed and weaned, adding a certain amount of acidifier to the diet can lower the pH value of the piglets' stomach, promote the conversion of pepsinogen to pepsin, increase the digestibility of protein in the chyme, and reduce the digestive disorder. Incidence. In addition, organic acids have strong anti-inflammatory and bactericidal ability, can inhibit the proliferation of pathogenic bacteria by lowering the pH value, thereby promoting the proliferation of probiotics, maintaining the micro-ecological balance of piglets' intestines, preventing and reducing the occurrence of diarrhea in piglets.
Adequate feed intake is extremely important for the normal growth and development of piglets. Therefore, how to improve the palatability of piglet feed has become a concern of the pig industry. Piglets have a sharp sense of smell and are sensitive to the taste and smell of the feed. Therefore, the application of feed flavoring agents in the diet of weaned piglets that does not affect the digestion and absorption of the gastrointestinal tract can not only induce piglets to eat, eat as soon as possible, and early weaning, but also increase feed intake, promote growth and development, and reduce diarrhea.
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