摘要
１９９２年冷季（２～４月），在大通种牛场对海福特×黄牛×牦牛幼龄公牛进行６１天饲喂尿素试验。在白天放牧、早晚单槽拴系补饲，每日每头补饲１．５ｋｇ干草，０．５ｋｇ精料的条件下，试验组（５头）每日每头补喂尿素５０ｇ（分早晚两次），对照组（５头）不喂尿素。试验结果：试验组平均日增重２３７．７ｇ，对照组为－１１．５ｇ，两组差异极显著。
bull Calves of Hereford×Cattle×Yak Were used in a 61-day trial to ob-serve the effect of urea sulplemented in diet on growth rate of the animals in winter in 1992.All animals were grased in day and given 1.5kg hay and 0.5kg Concentrate in night, five ofthem were also fed urea (each animal 50g Per day). The meam daily gain of the ured-fedgroup was significantly higher (237.7g) than that of the contral group (-11.5g).
出处
《青海畜牧兽医杂志》
1995年第4期1-2,共2页
Chinese Qinghai Journal of Animal and Veterinary Sciences
关键词
尿素
增重
牦牛
种间杂交
杂种
Urea, growth, crossbred of yak and others
