Crude fiber includes components such as cellulose, hemicellulose, and lignin. Crude fiber plays an important role in animal husbandry. It mainly has the following aspects: 1. Feeding animal nutrition to crude fiber in cellulose and hemicellulose, in rumination In the digestive tract of livestock, enzymolysis is performed under the action of cellulase produced by cellulolytic bacteria. A part of it is converted into carbon dioxide and methane, excreted from the body, and the other part is turned into volatile fatty acid, which is digested and absorbed into the blood for livestock and poultry. Used by. 2, as the filling material of crude fiber water absorption is large, enter the gastrointestinal tract, its volume expansion increases, play a filling role. At the same time, crude fiber stimulates the intestinal mucosa of livestock and poultry, promotes gastrointestinal motility, and facilitates the excretion of feces. 3. The lignin in the digestible crude fiber is difficult to digest and has no nutritional value. It exists at the same time as cellulose and hemicellulose, and is not easy to separate. Lignin blocks bacterial cellulose and impedes the contact of other nutrients with enzymes, leading to reduced digestibility. In addition, excessive lignin in the feed is prone to constipation. Therefore, the higher the crude fiber content, the lower the digestibility of various nutrients.
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