麦洼牦牛若干选育性状的主成分分析  

Analysis of Principal Component about Several Breeding Traits of Maiwa Yaks

作　　者：钟金城[1] 陈智华[1] 马力[1] 字向东[1] 文勇立 

机构地区：[1]西南民族学院动物科学技术系,成都610041

出　　处：《西南民族学院学报（自然科学版）》2000年第4期407-410,共4页Journal of Southwest Nationalities College(Natural Science Edition)

基　　金：四川省科委应用研究项目基金

摘　　要：对麦洼牦牛的 9个数量性状进行了主成分和聚类分析 .结果表明 ,9个性状可分为体尺类、产乳类、角毛类等 3类 ;而前 2类对牦牛的生长发育最重要 .因而 ,对麦洼牦牛的选育 ,重点应对这 2类性状 。The article analyzes the 9 quantitative traits of Maiwa yaks for principal component and cluster analysis. The result shows that the 9 traits can be divided into 3 groups as body size,milk,hair and horn, while the first two groups are the most important for growth and development of yaks. So, the first two groups will be the keynote for Maiwa yak breeding to get better effect.

关 键 词：麦洼牦牛 主成分分析 聚类分析 选育 

分 类 号：S823.85[农业科学—畜牧学] S823.2[农业科学—畜牧兽医]