不同营养水平对肉牛肥育效果的研究

Effects of Different Nutrition Levels on Beef Cattle Fattening Performance

为了探索酒泉地区舍饲肉牛的肥育模式,用3个不同营养水平的精料对62头小公牛进行了肥育试验,并从日增重、耗料量和经济效益3方面进行了分析。结果表明:3个营养水平对肉牛日增重差异不显著,中营养组日增重略高于其它两组;从耗料情况来看,高营养组耗料最多,中、低营养组耗料基本相同;从经济效益看,中营养组最好,高营养组最差。综合分析表明在酒泉地区肥育肉牛应以中等营养水平为宜。

To investigate the fattening pattern of housed beef cattle in Jiuquan area, 62 male calves were used to conduct the fattening trial under 3 different nutrition levels of concentrate to analyze the average daily gain （ADG）, feed efficiency and economic return. The results showed that there was no significant difference in ADG among 3 treatments, the middle nutrition group had the highest A DG; high nutrition group consumed most feeds, there were a similar feed costs for another two groups; middle nutrition group demonstrated the best profit, which suggested the middle nutrition level in the beef cattle fattening in Jiuquan area.