新疆褐牛与同龄牦牛放牧增重对比试验

Comparative Test of Gain in Xinjiang Brown Cattle and Same-age Yak Under Grazing Condition

对10头30月龄的新疆褐牛（（??）及牦牛（（?））,进行了128天暖季草原放牧增重对比试验。结果表明:新疆褐牛30月龄的体重为184.7 ±20.2kg,是同龄对照组牦牛的138％。36月龄的体重为253.6±32.5kg,是同龄对照组牦牛的154.7％。日增重538.4±157.5g,是同龄对照组牦牛的227％。两者之间差异极显著（P<0.01）。每头褐牛比牦牛多收入403.65元,经济效益明显。

Ten female Xinjiang brown cattle and female yaks at the age of 30 months were used to conduct a comparative test under grazing condition in grassland during the ragion of 128 days in warming season.The results showed that the body weight of Xinjiang brown cattle was 184.7±20.2kg at the age of 30 months and 253.6±32.5kg at the age of 36 months, being 138% and 154.7% of same-age yaks in the control group respectively.The daily gain of them was 538.4±157.5g,being 227% of same-age yaks in the control group.There was a very significant different between brown cattle and yak( P< 0.01) ,The income of each brown cattle was more 403.65 Yuan than that of yak,There was a significant economy benefit.