冷季藏羊补饲试验效果观察

Observation on the Effect of Supplementary Feeding of Tibetan Sheep in Cold Season

为进一步研究寒冷冬季对藏羊进行饲料补充所带来的增重效果,从一个藏羊养殖场中选择30头1.5岁藏羊开展补饲试验,按照随机原则将其划分成试验组和对照组,试验组羊除了采用常规养殖模式之外,向羊每天投喂0.4 kg青干草和0.1 kg混合精饲料,对照组羊按照常规方法进行放牧管理,在试验中期和试验末期各称重1次。补饲结束后将羊放置在夏季牧场进行放牧养殖,分别在6、7、8、9月进行1次称重处理,进一步计算增重情况和增重率。研究结果表明,寒冷的冬季通过对试验组的藏羊进行补饲处理,中期和末期的增重分别为3.44、4.25 kg,增重率分别为17.52%、21.45%,试验组和对照组相比差异性比较显著。补饲结束后,分别在6、7、8、9月对羊进行1次称重处理,发现试验组羊的增重情况要比对照组好,试验组绵羊的生长发育速度更好,增重最为显著。显示在冬季对羊进行适当补饲处理能维持羊的表情,进入夏季放牧时间后,藏羊的身体膘情恢复速度相对较快,保证藏羊更好的生长发育。

In order to further study the effect of supplementary feed on Tibetan sheep in cold winter,30 Tibetan sheep aged 1.5 years were selected from a Tibetan sheep farm to carry out supplementary feeding experiment,they were divided into experimental group and control group according to the random principle.The experimental group sheep were fed with 0.4 kg hay and 0.1 kg mixed concentrate feed every day in addition to the conventional breeding mode,the control group sheep were herded according to the routine method,and weighed once in the middle and the end of the experiment.After supplementary feeding,the sheep were placed in summer pastures for grazing and were weighed once in June,July,August and September to calculate their weight gain and rate.The results showed that the weight gain of Tibetan sheep was 3.44 kg and 4.25 kg,and the weight gain rate was 17.52%and 21.45%,respectively,in the middle and the end of the cold winter.The difference between the experimental group and the Control Group was significant.When the sheep were weighed in June,July,August and September respectively after supplementary feeding,it was found that the weight gain of the experimental group was better than that of the control group,and the growth and development speed of the experimental group was better than that of the control group,weight gain was the most significant.This shows that proper supplementary feeding in winter can maintain the expression of the sheep,and after grazing in summer,Tibetan sheep's body fat recovery rate is relatively fast,thus ensuring better growth and development of Tibetan sheep.