麦洼牦牛生长发育研究  

A Research on Growth and Development of Maiwa Yak

作　　者：文勇立[1] 林小伟[2] 钟光辉[1] 袁季广[2] 左学明 纳花 

机构地区：[1]西南民族学院生命科技学院,成都610041 [2]四川省畜禽繁育改良总站,四川成都610041 [3]四川省阿坝州家畜改良站,四川红原624400 [4]四川省龙日种畜场,四川红原624400

出　　处：《四川畜牧兽医》2002年第6期20-22,共3页Sichuan Animal & Veterinary Sciences

基　　金：四川省畜牧食品局95重点科技项目"麦洼牦牛种质资源保存与开发利用研究"的部分内容。

摘　　要：测定1055头健康、发育良好、雌、雄性、0～4岁麦洼牦牛的体重和胸围、体长、体高等7个线性性状。公犊、母犊初生重分别为13.71、12.90kg,公牦牛1～4岁体重:72.89、127.21、169.19和197.36kg,胸围:113.73、137.67、153.26和159.91cm;母牦牛1～4岁体重:63.79、117.57、159.66和176.26kg,胸围:109.10、133.34、149.00和153.38cm。两种性别的体重和胸围、体长、体高3个大尺度性状增长曲线拐点出现在3周岁,其余4个小尺度性状增长曲线拐点出现在2周岁或稍后。The7linear traits including body weight,heart girth,body length and body height of1055Maiya yak are measured.Those yaks are good health,0to4years old,and include male and female.The new-born weight of male calf and female calf are13.71kg and12.90kg respectively.The body weight from1to4years old male yak are72.89,127.21,169.19and197.36kg,and the heart girth are113.73,137.67,153.26and159.91.The body weight from1to4years old female yak are63.79,117.57,159.66and176.26kg,and the heart girth are109.10,133.34,149.00and153.38.The inflexion of curve of3large scale traits including body length,body height,heart girth and body weight occurs at3years old while inflexion occurs at2years old in curve of other small scale traits.

关 键 词：麦洼牦牛 生长发育 线性性状 生产性能 体重 

分 类 号：S823[农业科学—畜牧学]