肉牛2号对放牧条件下西杂牛的增重效果

Growth and Fattening of Grazing Semmental Crossbreds Using Beef No 2

本文研究了放牧条件下使用肉牛生长促进剂的效果 ,通过为期 60天的试验 ,喂添加剂组和不喂添加剂组的增重分别为 2 5kg、1 7.8kg,试验组平均比对照组提高 7.2 kg( P<0 .0 1 )。试验还表明 :在低日粮水平下 ,添加该添加剂具有显著的增重效果 ,试验组头均收益较对照组高 36元 ,投入产出比为 1 :3,经济效益十分显著 ,具有推广应用价值。

Sixty days feeding trail was conducted under the grazing condition to investigate the effects of beef growth promoter on semmental crossbreds The weight gain of experiment (with supplements) and control group were 25 and 17 8 kg respectively, cattle in experiment group gained 7 2 kg more than those in control group (P <0 01) The supplements demonstrated a more significant growth result at the low nutrient level of ration, the average income per head of cattle in experiment group was 36 RMB yuan higher than in control group with the ratio of input and output of 1:3, so the obvious economic return showed high value of extension \;