放牧牦牛暖棚补饲效果观察

通过对放牧牦牛全舍饲进行补饲,期中试验组公牛组增重1.19kg,增重率为1.71%。对照组公牛增重-8.02kg,增重率为-13.13%。试验组公牛比对照组公牛多增重9.21kg,高14.306%,差异性极显著(Pp<0.01)。期中试验组母牛增重4.78kg,增重率为6.63%,对照组母牛增重-7.82kg,增重率为-13.80%,试验组母牛比对照组母牛多增重12.60kg,高20.43%,差异性极显著(P<0.01)。期末试验组公牛增重4.47kg,增重率为6.01%,对照组公牛增重-11.55kg,增重率-23.31%,试验组公牛比对照组公牛多增重16.02kg,高29.32%,差异性极显著(P<0.01)。期末实验组母牛增重10.20kg,增重率为12.39%,对照组母牛增重-10.38kg,增重率为-22.42%,组母牛比对照组母牛多增重22.48kg,高34.81%,差异性极显著(P<0.01)。

Effect of Feed Supplement in Grazing Yaks in Warm - shelter

Supplement experiment was conducted in Grazing Yaks in warm-shelter.The results showed that gaining weight,rate of gaining weight are 1.19kg and 1.71% respectively in male yaks in experimental group;but for control group,These are-8.02kg and-13.13%.There is 9.21kg more than control group,increasing by 14.306%,There is very significant difference between experimental group and control group(P<0.01).For female yaks,These are 4.78kg,6.63% and-7.82kg,-13.80% respectively in experimental group and control group in the middle term of experiment Experimental group is 12.60kg more than control group,increased by 20.43%.There is very significant difference between them(P<0.01).The gaining weight,gaining rate of male yaks in both group are 4.47kg,6.01% and-11.55kg,-23.31% respectively in end term of experiment.The experimental group is 16.02kg more than control group,increased by 29.32%.There is very significant difference.Meanwhile for female yaks,are 10.20kg,12.39% and-10.38kg,-22.4%.The experimental group is 22.48kg more than control group,increased by 34.81% respectively,There is very significant difference(P<0.01).