Further discussion on the problem of crude fiber in piglet teaching trough material

This forum published a post on piglet teaching trough material, but there seemed to be no conclusion at that time. Recently, I have read several reports, which seems to say that piglets are taught to contain coarse county party committee. How high is it so specific? No specific data were found. Here is a summary of the information I have collected. I hope you will continue to discuss this issue-how high is it? The core of raising piglets with dietary crude fiber is to ensure the normal development and health of its digestive system. It is generally believed that the digestive function of piglets is not perfect and carbohydrates can not be fermented, and the fiber in the diet of piglets will damage the intestinal mucosa of piglets. However, it is also reported that the composition of gastrointestinal bacteria in piglets is closely related to the dietary composition, especially the dietary fiber content, and dietary fiber can induce the microecological balance in the gastrointestinal tract of piglets. As the fermentation product of intestinal microorganisms, non-starch polysaccharides (NSP) can be used as the energy of intestinal beneficial microorganisms, which is beneficial to the balance of intestinal microecology and prevent digestive dysfunction, although it is not digested by piglets. At the same time, VFA produced by fiber fermentation in the colon can change the absorption of water, fiber adsorption of water to improve the degree of fecal formation, but also promote gastrointestinal peristalsis and chyme flow, thus increasing the elimination of E. coli and toxins. However, breast milk does not contain crude fiber. According to the bionic principle, it seems that the high level of dietary crude fiber is not good, and the high level of crude fiber at least reduces the utilization rate of protein and amino acids. Although this quantitative relationship has not been determined for piglets, in practice, for every 1% increase in crude fiber level, the apparent utilization rate of protein can be reduced by 1% to 1.5% to consider the appropriate supply of protein in the diet at high crude fiber level. Considering the amount of plant raw materials such as corn and soybean meal in the diet of normal suckling piglets, we believe that the feed formula for piglets should be designed to reduce the level of crude fiber as much as possible-in fact, it is impossible for us to make the diet of normal commercial piglets free of crude fiber. So what is the appropriate level in the diet of suckling piglets? There is no cellulase in the intestines of pigs and chickens, lignin often combines with cellulose and hemicellulose to prevent enzyme contact with other nutrients, thus reducing the digestibility of other nutrients; high lignin can cause constipation, especially in young animals. The relationship between dietary crude fiber content (X) and digestibility (Y) is as follows (the correlation coefficient is-0.66). Therefore, the appropriate dietary fiber level of suckling pigs needs to be further studied. -Thank you, Mr. Shepherd Boy, for your summary, which is instructive! The problem is that if the trough material is to increase the content of crude fiber, what is the best raw material to use? the plant raw material is generally only corn soybean meal, and the initial fiber content is relatively low, while other animal protein and duodorite basically do not have any crude fiber. if you consider increasing crude fiber, corn should not be enough, and the amount of soybean meal is generally not enough. So what should I add? The following is what we see in the partial data: crude fiber provides little nutrition for piglets, but can make piglets feel full, appropriate crude fiber can absorb a large amount of water in feces, and can also alleviate fecal thinning caused by high-protein fodder. therefore, crude fiber is also indispensable in the diet of weaned piglets, and 4% is appropriate. -about the content of crude fiber in the diet of piglets! Just stay in the literature! But I agree with the landlord's point of view! In fact, there are actually non-starch polysaccharides (NSP) in corn and soybean meal. I think the key and fundamental is how to eliminate the antigen in the diet of piglets.-it is beneficial to increase digestible fiber, the key is how to distinguish between digestible and indigestible, the current detection methods can only detect the total amount of crude fiber. Digestible fiber has to do digestion test, which is too troublesome. -I've heard that if the amount of gluten is too large, high crude fiber will reduce digestibility! The best crude fiber should be fresh wheat bran. I wonder if there is a better raw material. I heard that apple pomace is also good. I wonder if anyone has used it in the trough. Under the condition of raising pigs in a relatively extensive way, piglets do not dilute even if they eat straw. I don't understand why. I remember doing a number of experiments in the pig farm before showed that 2% crude fiber is the best, a certain amount of crude fiber can reduce diarrhea, the test results are shown! The test data I did before were accidentally formatted, or I'll pass it on to you! By adding a small amount of rice bran! -OK, thank you for sharing! Personally, I think alfalfa fiber is a good source of fiber.