The cattle prefer to eat grasses and tall straw plants, followed by legumes. Forage species suitable for feeding cattle include hybrid pennisetum, sudangrass, alfalfa, pineleaf herb, wintergrass-70 rye, chicory, and rutabaga. Dairy cows generally have a green feed requirement of 50 kg per head per day, and a mixed herd of young cattle and yaks requires an average of 30 kg of green feed per head per day. In order to ensure the uninterrupted supply of green feed for the whole year, the combination of annual pastures and perennial pastures, tropical pastures and temperate pastures should be the main method. Single-species and interplanting should be combined as far as possible. Taking dairy cows as an example, the seasonal distribution method of forages is to select temperate grasses from March to June, such as perennial red clover, white clover, alfalfa, gramineous grasses, and annual ryegrass as the main cultivars; 6 From October to October, tropical forages were planted, such as hybrid pennisetum and Sudan grass. In the weeping period from November to the beginning of March of the following year, the silage was mainly fed with a juicy feed and some hay. Crops suitable for silage include corn, sorghum, barley, and ryegrass. Legumes such as alfalfa, red clover and white clover are not suitable for silage alone.
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