上海农业学报Issue(3)：19-23,5.DOI:10.15955/j.issn1000-3924.2015.03.04
运用主成分综合函数法构建10周龄朗德鹅体尺评估模型
Comprehensive evaluation model of body-size traits in 10-week Lande geese with principal component analysis
摘要
Abstract
This experiment was conducted to study 12 body-size and body-weight traits,such as body weight (x1 ),body slope lengths(x2 ),neck length(x3 ),half-diving length(x4 ),neck girth(x5 ),back width(x6 ),chest width(x7 ),chest girth(x8 ),chest depth(x9 ),chest bone length(x10 ),shank length(x11 ),and shank girth(x12 ) in parternal line of 10-week Lande geese and maternal line of 10-week mother Lande geese.After measuring,the principal component analysis was carried out for the main traits of different geese,and the comprehensive evaluation model was established as y =0.255zx1 +0.231zx2 +0.175zx3 +0.247zx4 +0.225zx5 -0.196zx6 -0.203zx7 +0.221zx8 +0.246zx9 +0.235zx10 -0.185zx11 -0.200zx12 .The results showed that the first three character values were selected as the principal component which occupied 92.64%(>85%)of total information.The three com-ponents contained nearly all the original information.From the models established,the combined scores of body-size traits were obtained,the descending order of the scores was males of parternal line,males of maternal line, females of parternal line,and females of maternal line,which was consistent with expectations.关键词
朗德鹅/主成分分析/体尺/评估模型Key words
Lande geese/Principal component analysis/Body-size traits/Comprehensive evaluation model引用本文复制引用
王惠影,刘毅,龚绍明,王翠,杨云周,何大乾..运用主成分综合函数法构建10周龄朗德鹅体尺评估模型[J].上海农业学报,2015,(3):19-23,5.基金项目
现代农业产业技术体系建设专项资金（CARS-43-26）；上海市科技兴农重点攻关项目［沪农科攻字（2009）第2-1号］ （）
