寒冷季节犊牛补饲试验研究

Experimental Study on Supplementary Feeding of Calves in Cold Season

牦牛是青海省特有的牲畜动物,也是当地畜牧养殖产业的基础,是农牧民群众重要的生产生活资料。在传统放牧养殖模式下,冬春季节青绿饲料供给不足,无法满足牦牛的营养需求,很容易造成牦牛营养缺乏,身体逐渐消瘦,抵抗能力下降,甚至会引发严重的死亡。在冬季通过向牦牛提供一定量的精饲料,能有效弥补青绿饲料供给不足所造成的营养失衡,确保牦牛健康生长。为进一步验证寒冷季节补饲对犊牛生长发育的影响,于2019年12月—2020年4月开展补饲试验,试验结果显示通过向犊牛提供适量的精饲料,有利于增加犊牛的体重。试验组牦牛犊牛增重为10.66 kg,增重率为27.18%,试验组与对照组相比增重7.66 kg,增重率为18.14%。同时通过补充适量的精饲料,还能改善犊牛的体高、体长和胸围,对促进犊牛生长发育能力有很大帮助。

The yak is a unique livestock animal in Qinghai province.It is also the foundation of the local livestock breeding industry and an important means of production and living for farmers and herdsmen.Under the traditional grazing farming model,the supply of green feed in winter and spring is insufficient to meet the nutritional needs of the yak.It is easy to cause the yak's nutritional deficiency,gradually lose weight,reduce resistance,and even cause serious death,causing economic losses.Estimate.In winter,providing a certain amount of concentrated feed to Yaks can effectively compensate for the nutritional imbalance caused by the lack of air in the green feed and ensure the healthy growth of the yak.In order to further verify the effect of supplementary feeding in the cold season on the growth and development of calves,supplementary feeding trials were carried out from December 2019 to April 2020.The test results showed that by providing appropriate amounts of concentrated feed to the calves,it is beneficial to increase the calf's growth.body weight.The weight gain of the yak calves in the experimental group was 10.66 kg,and the weight gain rate was 27.18%.The weight gain of the experimental group was 7.66 kg compared with the control group 18.14%.At the same time,by supplementing the appropriate amount of concentrated feed,the body height,body length and bust circumference of the calf can also be improved,which is of great help in promoting the growth and development of the calf.