For a long time, the diarrhea of ​​weaned piglets is a key problem that plagues the healthy growth of piglets. The diarrhea usually occurs 3 days to 10 days after weaning, and reaches the climax on the 7th day. It usually forms atheroma or watery diarrhea. Digested food. If not discovered and treated in time, piglets will soon die from dehydration. The reasons are mainly the following:
1. After weaning, the maternal antibody drops sharply, causing a decrease in resistance.
2. The digestive physiology of piglets is not perfect, and it is not suitable for feeds with high vegetable protein, causing gastrointestinal disorders. In addition, the pH value of the gastrointestinal tract is high, and the digestive enzyme activity can not play its due role to induce diarrhea.
3. Weaning stress, especially environmental stress, when the temperature difference between day and night exceeds 10 °C, the diarrhea rate will increase by 25% to 30%, and the environment with high humidity will also increase the number of diarrhea.
4. Excessive feeding and feeding, forming hunger and overeating diarrhea.
5. Immune response, especially when feeding corn-soybean-type diets, and containing more anti-nutritional factors, the raw bean cakes and soybean meal cause delayed intestinal allergic reaction of intestinal epithelial cells, causing watery diarrhea.
6. Gastrointestinal flora imbalance.
The use of xylooligosaccharide as a functional oligosaccharide in feed has a negligible effect. It is not decomposed by the digestive enzyme system of the body, but is preferentially utilized by the bifidobacteria in the body, which promotes the proliferation of bifidobacteria, effectively inhibits the growth of other harmful bacteria, regulates the micro-ecological balance of the organism, and effectively reduces The pH value of the body's intestines; improve the immunity of piglets.
1% of xos (polyxylose) was added to the diet of 21-day-old weaned piglets. On day 6 and day 8, the pH of the ileum decreased significantly.
Xylo-oligosaccharides have a certain effect on the digestive enzyme activity of weaned piglets. Adding 80 mg/kg and 100 mg/kg xylooligosaccharide to daily feed can significantly increase duodenal and jejunal lipase activity; increase ileal amylase activity. When 100 mg/kg and 120 mg/kg xylooligosaccharide were added to the daily feed, duodenal protease and jejunal protease were significantly increased in weaned piglets.
Under normal circumstances, the average length of E. coli in the small intestine of healthy piglets is 105.9, and that in the large intestine is 107.1; the logarithm of Bifidobacteria in each gut of intestinal contents is 8.0~8.5. When the number of E. coli in the intestine exceeds the health index, some unsuitable or pathological changes will occur in the organism. Studies have found that adding 43.75 grams of xylooligosaccharide to tons of feed can effectively inhibit the proliferation of E. coli in the intestines of weaned piglets; adding 87.5 grams of xylooligosaccharide to tons of feed can effectively proliferate bifidobacteria in the cecal of weaned piglets The amount of xylooligosaccharide added to the ton feed is 131.25 g, which can effectively proliferate the number of bifidobacteria in the colon and rectum of weaned piglets.
Serum immunoglobulin is an important indicator of the body's immunity. When the xylo-oligosaccharide is added to the piglet's feed of 43.75 grams, the serum immunoglobulin G content can be effectively increased.
In summary, the proper addition of Longli Xylo-oligosaccharide can increase the number of beneficial microbes in the intestine, improve the intestinal microbial structure of piglets, and digestive enzyme activities in piglets, thereby reducing the diarrhea of ​​piglets and has a very good health for piglets. Significance. When the amount of xylooligosaccharide added is 100 mg/kg of daily feed, it has a desirable effect on piglet production.
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