不同育肥模式对奶公牛生长性能和屠宰性能的影响  

Effects of Different Fattening Patterns on Growth and Slaughter Performance of Dairy Bulls

作　　者：张兴隆[1] 乔绿[1] 孙宝忠[2] 

机构地区：[1]北京奶牛中心,北京100192 [2]中国农业科学院北京畜牧兽医研究所,北京100193

出　　处：《中国草食动物科学》2016年第6期24-27,共4页China Herbivore Science

基　　金：北京市博士后工作经费资助项目

摘　　要：该试验旨在研究不同育肥模式对奶公牛生长性能和屠宰性能的影响。随机选择6月龄奶公牛400头,平均分成2组,一组采用直线育肥,一组采用先吊架子再强度育肥的阶段育肥。结果显示：8-11月龄吊架子阶段的牛平均体重和日增重均极显著低于直线育肥牛（P〈0.01）。后经过6个月强度育肥,吊架子牛的体重和屠宰性能都与直线育肥牛没有显著差异（P〉0.05）。结论：直线育肥和阶段育肥对奶公牛体重和日增重在一定阶段内均有极显著影响,吊架子对奶公牛体重生长有显著的抑制作用,后期的强度育肥能让吊架子牛在18月龄时通过完全补偿生长达到直线育肥牛的体重和屠宰性能。The objective of this experiment was to study the effects of the different fattening patterns on growth performance and slaughter performance of dairy bull. Four hundred 6-month-old dairy bulls with similar body weight were randomly and equally divided into two groups. One group was conducted straight fattening,the other group was conducted phase fattening including store rearing first,then fattening strongly. The results showed that the average body weight（BW）and average daily gain（ADG）of feeder cattle were extremely significantly lower than those of the cattle of straight fattening（P〈0.01）. The average body weight and slaughter performance of straight fattening feeder cattle and cattle after fattening strongly for six months had no significant difference（P〉0.05）. It was concluded that straight fattening and phase fattening extremely significantly influenced theBW and ADG of cattle during a certain stage. Store rearing significantly inhibited the BW and ADG of the cattle,but the feeder cattle could reach the BW and slaughter performance of straight fattening cattle at the 18 th month by complete compensatory growth through strong fattening.

关 键 词：直线育肥 阶段育肥 奶公牛 生长性能 屠宰性能 

分 类 号：S823.4[农业科学—畜牧学]