中国美利奴羊(新疆型)主要性状的主成分分析和聚类分析

摘要

收集了新疆巩乃斯种羊场1999-2008年的中国美利奴羊(新疆型)母羊鉴定记录,采用多元分析方法,对一个品种5个品系(中美体格大品系、中国美利奴羊品系、肉用型多赛特品系、多胎品系、毛密品系)的14个主要性状(头毛评分、毛长度、毛细度评分、毛弯曲评分、毛密度评分、毛油汗评分、毛匀度评分、毛光泽评分、体型外貌评分、鉴定时体重、剪毛后体重、剪毛量)进行主成分析和聚类分析.结果表明,14个主要性状按不同品系可简化为7～10个主成分因子,所提供信息量占14个主要性状信息量的85％.在主成分的基础上把14个性状划分为2个大类群.%The study was used to collect the detected data of Chinese Merino Sheep (Xinjiang type) in Xinjiang Gongnasi Tupping Ram Farm in 1999 - 2008 in order to reveal the main traits of Chinese Merino Sheep (Xinjiang type) and to provide the basic materials for selection and breeding of Chinese Merino Sheep,the principal component analysis and cluster analysis were carried out on five strains including 14 main straints. The results showed that 14 main straits can be simplified into 7-10 main component factors according to different straits,the information capacity provided was 85% of 14 main characteristic information capacity. Based on principal component, 14 straits were divided into two big groups.