First, the application of beef cattle weighting agent. Commonly used beef cattle weighting agents are: 1 corn zearalanol (also known as animal Da Zhuang). After the cattle are slaughtered 90 days before the ear, the cow's daily gain can be increased by 15.5%-20%, and the feed conversion rate can be increased by 6%-12%. 2FP218 weighting agent. 60-90 days before cattle slaughter a time, can increase the daily weight gain of 10% -15%, a small number of cattle up to 20%, improve feed utilization rate of 10% -15%. Second, improve the modulation of roughage. That is, the use of feed silage, ammoxidation of straw and micro-producing techniques will improve the palatability and nutritional value of the straw, and increase the feed intake and digestibility of beef cattle. Third, the application of rumen buffer. Adding 1%-2% sodium bicarbonate or 0.3%-0.6% magnesia and bentonite to the diet can prevent the ruminal pH of the beef cattle from decreasing and the occurrence of hepatic abscess disease, and increase the ratio of beef to high concentrate diets. Feed utilization rate. Fourth, the amount of added minerals, vitamins and trace elements. According to the feeding standards, in addition to the need to supplement salt, the beef cattle diet should also be supplemented with calcium, phosphorus and other minerals. Selenium-deficient areas should also be supplemented with 0.1% selenium in beef cattle diets. In addition, it is also essential to supplement adequate amounts of vitamin A, vitamin D, and vitamin E.
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