The leaves are more important, the coarse and fine materials are well matched, and the single roughage is not fed. It is more important that the straw is chopped and fed. The leaf parts of various hay and straw have more nutrient content than stems. For example, the digestible protein content of the leaves of alfalfa hay is more than 3 times higher than that of the stem, the crude fat and calcium are 2.5 times higher, and the phosphorus is 0.5 times higher. The carotene is mainly present in the leaf part, while the crude fiber content of the leaf is only the stem part. 1/3. Therefore, be careful when processing seasonings, do not allow the blades to be lost or discarded.
The coarse and fine materials are well matched. Crude feed, especially straw and clam shell, has a low net energy content and a large volume. As a basic feed for livestock such as growth, fattening, labor, and milk production, it should be matched with a fine material with a high net content. However, roughage is indispensable as a feed for horses and cattle during leisure periods.
Do not feed a single roughage. A single grassy straw, such as straw, wheat straw, etc., can not meet the nutritional requirements of maintaining livestock, and should be fed with leguminous straw with more protein and calcium content to improve Feed utilization. In particular, do not use a single straw to feed livestock for a long time, because a single wheat straw can easily cause ruminal flaccid disease in ruminant livestock, making a single stomach livestock chronically indigestible. The roughage is generally deficient in phosphorus, and the content of carotene is very little or not contained except for fine hay. Therefore, when feeding, appropriate amount of bone powder, stone powder, shell powder and greenish feed should be added.
Straw should be chopped and fed. The rough part of the lower part of the straw should be cut before feeding. The upper part of the straw can be cut into 3 cm long and fed to the cow; cut into 1.5 cm long to feed the horse, donkey, donkey and sheep; the pig should be crushed.
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