Crude fiber includes cellulose, hemicellulose, lignin and other components. Crude fiber plays an important role in livestock raising, mainly in the following aspects: 1. The cellulose and hemicellulose in crude fiber that supplies nutrition to livestock are used in ruminants. In the digestive tract of livestock, under the action of cellulase produced by cellulolytic bacteria, enzymatic hydrolysis is carried out, part of which becomes carbon dioxide and methane, which is excreted from the body, and the other part becomes volatile fatty acids, which are digested and absorbed and enter the bloodstream for livestock and poultry. utilized. 2. As a filling material, the crude fiber has a large water absorption capacity. After entering the gastrointestinal tract, its volume expands and increases, which plays a filling role. At the same time, crude fiber stimulates the intestinal mucosa of livestock and poultry, promotes gastrointestinal motility, and is beneficial to the excretion of feces. 3. Obstructing digestion Lignin in crude fiber is a substance that is difficult to digest and has no nutritional value. It coexists with cellulose and hemicellulose and is not easy to separate. Lignin hinders bacterial cellulose and hinders the contact of other nutrients with enzymes, reducing digestibility. In addition, too much lignin in the feed is prone to constipation. Therefore, the higher the crude fiber content, the lower the digestibility of various nutrients.

The stems and leaves of crops after the seeds are harvested, including corn straw, rice straw, wheat straw, barley straw, sorghum straw, millet straw, millet straw, oat straw and soybean straw, broad bean straw, pea straw, etc., all contain a large amount of crude fiber.

After the crop straw is crushed, dried and pelletized by Dingli dryer, it can be added to livestock feed in proportion, which not only reduces the cost of feeding, but also protects the environment.

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