高寒牧区冷季不同补饲方式对天祝白牦牛犊牛生产性能的影响

Effects of different supplementary feeding methods in cold season on productivity of Tianzhu white yak calves in alpine pasture

为了防止天祝高寒牧区天祝白牦牛犊牛寒冷季掉膘损失和生长发育缓慢,于2011年11月10日-2012年4月10日在天祝县抓喜秀龙乡高寒草甸区对天祝白牦牛犊牛进行补饲试验,考察不同饲喂量燕麦籽实对犊牛增重和经济效益的影响。结果表明,在150 d试验期内,各处理组犊牛日增重比单一放牧组分别提高192.39%、228.32%、214.58%、35.35%,且补饲燕麦籽实处理组增重效果极显著高于传统补饲组和纯牧组（P〈0.01）,纯收益较放牧组分别增加404.92、500.96、422.76和94.00元/头;0.2 kg/（头·d）的补饲方式可达到最佳犊牛增重效果和经济效益。

Supplementary feeding experiments were carried out for solving the problems of shedding weight and stunted grow in cold season of Tianzhu white yaks calves. From November 10, 2011 to April 10, 2012, the effects of different Oat seed fee amounts on calves weight gain and economic benefits were investigated in alpine pasture in Zhuaxixiulong Town of Tianzh County. The results indicated that in the 150 d period, the daily weight gain of calves in Oat seed supplementary groups we increased by 192.39%, 228.32%, 214.58% and 35.35% compared with that of single grazing group, respectively, while the calv weight rise in Oat seed supplementary groups were more higher significantly than those of traditional supplementary treatments an pure grazing treatments（P〈0.01）. Besides, the net income of different Oat seed supplementary treatments were increased by 404.9500.96, 422.76 and 94.00 yuan（RMB）/tou compared to grazing group. The supplementary feeding amount of 0.2 kg/（tou·d） cou obtain the best weight gain and economic benefits in Tianzhu white yak calves.