Compared with other animals, rabbits have a higher incidence of digestive diseases, especially diarrhea. When diarrhea occurs in young and young rabbits, the mortality rate is high. This is related to details such as high starch and low fiber feed, improper weaning, cold belly, sudden temperature drop in the body, sudden changes in feed formula, and unclean food. First, feed too much fine feed Feeding high-carbohydrate (ie, high-energy), high-protein, low-fiber concentrates, they pass through the small intestine faster, and undigested carbohydrates (ie, starch) can quickly enter the cecum. When there is a large amount of starch in the cecum, it will lead to the proliferation of some aerobic bacilli (such as E. coli, Clostridium perfringens, etc.) and excessive fermentation, destroying the normal microbial system in the cecum. Those pathogenic aerobic bacilli produce toxins at the same time, which are absorbed by the intestinal wall, causing destruction of the intestinal wall and increased permeability of the intestinal mucosa. A large number of toxins are absorbed into the blood, causing systemic poisoning, causing diarrhea and causing death. In addition, due to excessive fermentation in the intestine, volatile fatty acids are produced. These fatty acids increase the osmotic pressure of the liquid in the hindgut. A large amount of water enters the intestine from the bloodstream and causes diarrhea. Therefore, crude fiber (in which lignin) plays a major role in maintaining normal digestive function in the intestine. Second, weaning Improper weaning can also cause diarrhea in weaned rabbits. This is because: on the one hand, the effect of gastric anti-microbial factors is reduced; on the other hand, the acidity of intragastric hydrochloric acid in weaned rabbits does not reach the level of acidity in the stomach of adult rabbits. Effectively kills microorganisms (including pathogens) that enter the stomach. At the same time, weaned young rabbits are more sensitive to viable pathogenic microorganisms or bacterial toxins. Therefore, weaned offspring are particularly susceptible to diarrhea and other gastrointestinal diseases. Third, abdomen cold Abdominal wall muscles in rabbits are relatively thin, especially in the umbilicus of rabbits; the muscles in the abdominal wall are thinner. When the rabbit house temperature is low or the rabbit is lying on a low-temperature floor (such as a cement floor) and the intestinal wall is subjected to cold stimulation, intestinal peristalsis is accelerated, and nutrients that have not been digested and absorbed in the small intestine enter the cecum, and the cecum is reduced due to moisture absorption. The contents quickly dilute and affect the cecal environment. Indigestion of small intestine contents irritates the large intestine, causing motility of the large intestine and causing diarrhea. Puppy rabbits have poor adaptability and adjustment ability to cold and heat stimulation, so young rabbits are particularly prone to cold and diarrhea. At the same time, cold caused by abdominal diarrhea can easily cause secondary infection. Fourth, the feed is too small After the rabbit has eaten a fine feed, it forms a tight and strong food group. It is difficult for stomach acid to infiltrate the food bolus, so that the pH value of the food bolus in the stomach is maintained at a high level for a long time, which is conducive to the reproduction of microbes in the stomach, and allows Gastrointestinal bacteria enter the small intestine and bacteria produce toxins that cause diarrhea or death in rabbits. If the particles are too fine, the load of the cecum will increase, which will help trigger the fulminant growth of bacteria in the cecum. A large number of fermentation products and bacterial toxins will damage the mucosa of the cecum and colon, leading to abnormal permeability, causing gastroenteritis in rabbits and diarrhea. Fifth, the body temperature suddenly drops Rabbits have greater tolerance to changes in outside temperature, but are less resistant to changes in body temperature. In the cold season, if the young rabbits are fed a large amount of frozen wet materials or frozen wet vegetables and juicy feeds with high moisture content, a large amount of heat energy will be consumed immediately. Because rabbits, especially young rabbits, cannot quickly supplement these lost calories, they can cause intestinal allergies, especially by the movement of cold gut, which causes the internal function to lose balance and induce abnormal proliferation of bacteria in the gut. Wall of inflammatory lesions, diarrhea. Sixth, sudden changes in feed and eating unclean Feed mutations and unclean diets make the stomach unable to adapt, change the internal environment of the digestive tract, destroy the normal microflora, cause gastrointestinal dysfunction, induce E. coli disease, Clostridium perfringens and other diseases, which is currently Problems often arise in the production of rabbits. If the feed formula is to be changed, it must be carried out gradually. 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