摘要
选用泌乳性能中等的当地母牛15头和其平均出生日龄115天的利木赞杂一代哺乳公犊15头．母、子牛自由采食青贮玉米秸，犊牛补料配方为两种全价饲料．经73天补料试验，两个补料的试验组的平均日增重均显著高于不补料的对照组，其中试验1组平均日增重0．823kg，试验2组0．792kg．试验1组的平均总增重比对照组多24．65kg，试验2组则多22．45kg；试验1组的平均每kg额外增重所耗饲料2．77kg，试验2组为3．16kg．
A herd of 15 draught cows and their Limousin crossbred beef calves(average age of 115 days old ) were chosen and confined to drylot. Corn stover silage was fed and two formulations for creep diets were wellbalanced- After a period of 73 day creep feeding,the average daily gains of two lots of creep fed calves were singificantly higher than that of no creep fed calves(0. 823kg vs. 0. 485kg and 0. 79kg vs. 0. 485kg, respectively,p<0.01). The average gains of two lots of creep fed calves were 24. 65kg and 22. 45kg more than that of no creep fed calves. The amounts of the feed required per extra-kilogram gain of the two test lots were 2. 77 and 3. 16kg, resp.
出处
《黄牛杂志》
1994年第3期12-13,共2页
Journal of Yellow Cattle Science
关键词
哺乳犊牛
补料
生长
牛
Creep feeding
Suckling beef calve
Gain
