In the summer and autumn season, the green feed has grown vigorously and has a wide variety of types. In the process of using the green feed, the farmers should pay attention to correctly grasping the feeding method of the green feed, and reduce or avoid the toxic side effects of the green feed to the livestock. (i) Nitrite Poisoning Chinese cabbage, spinach, leeks, beets, radish leaves, sweet potato vines and other vegetable crops all contain a certain amount of nitrate, especially when a large amount of nitrogen fertilizer is applied. Feed, if livestock (especially pigs) are fed excessively or improperly prepared, such as in a sweltering environment or during rotten degeneration, frost, and withering, nitrates therein can be reduced to strong nitrites by nitrifying bacteria. Causes livestock poisoning, so the vegetable crops should adopt the method of fresh feed to avoid livestock poisoning. (b) Hydrocyanic acid poisoning sorghum, forage sweet sorghum, high-Dandgrass, sudan grass and other fresh seedlings of sorghum and corn, especially in regenerated seedlings containing cyanogenic glycosides, can be fat when chewing livestock Hydrocyanic acid is produced by the action of enzymes, causing hydrocyanic acid poisoning. The disease occurs quickly, and those who are fast can die within 3 to 5 minutes. Generally, they are fed by airing or silage before feeding, or they can be fed to livestock from heading to full flowering to avoid poisoning. (c) The known toxic components in the cotton leaf poisoning cotton leaves are 15 species such as free gossypol, cotton violet poison, cotton green poison, and lutein, etc. When using untreated cotton leaves as feed, if feeding time Excessive use or excessive use can cause livestock poisoning. Proper detoxification (such as heated cooking or pit burying) can help avoid poisoning in livestock. (4) The protein quality of the leguminous grasshoppers, red clover, white clover, and grass clover, etc. is good, rich in vitamins, calcium and trace elements, good palatability, especially the young stage contains saponin, rumination Excessive consumption of livestock results in a large amount of foam in the rumen, which is prone to rumen hernias. Special attention should be paid to feeding hay before grazing. Grazing grazing should be carried out before the dew has dried. The amount of feed intake should not be too large. For example, mixed legumes of legumes and grasses can also prevent or reduce the occurrence of radon. At the same time, green feed cannot be used as a single feed for livestock. Green feed contains too much water (800 grams per 1,000 grams of green feed). Dry matter is very low. If only green feed is used to feed livestock, it will be very full. However, the dry matter energy absorbed by the body cannot meet the needs of growing and depositing fat. Therefore, when feeding the livestock with green feed (especially during the late period of livestock fattening), it is necessary to supplement and incorporate appropriate amount of high quality hay, grain energy feed (corn, sorghum, etc.) and protein feed (beancake, peanut cake, etc.) The effect of feeding can be more pronounced.
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