有益微生剂在肉绵羊育肥上的试验研究

Study on Effect of Useful Microorganism Preparation on Fattening of Mntton Sheep

将从山东引入的小尾寒羊羔羊 2 0只 ,等分为两组 ,Ⅰ组为试验组 ,夜间补饲混合饲料加有益微生剂。Ⅱ组为对照组 ,夜间补饲混合饲料。共试验 10 0d ,试验组全期平均日增重 64 2 8± 0 .42g ,对照组全期平均日增重 3 8 79± 0 .65g ,试验组比对照组平均日增重增加 2 5 49± 0 .5 2g ,增重提高 65 71% ,差异极显著 (P <0 0 1) 。

Small tail lambs introduced from Shandong Province were averagaly divided two groups.The sheep in the tset group(Ⅰ group) were supplemently fed the mixed feed with useful microorganism preparation and the sheep in the control group(Ⅱ group) were supplemently fed the mixed feed on nights during the periog of 100 days.The results were that the average daily gain of the sheep in the test group and in the control group were 64.28±0.42 and 38.79±0.65 g,resp.The average daily gain of sheep in the test group was more 25.49±0.52 g (increasing 65.75%) than that in the control group(P<0.01),Suggesting that econmic benefit was obvious.