广丰白翎鹅体重与体尺性状指标主成分分析

本研究测定了5.5月龄广丰白翎鹅体重与体尺性状指标,并进行了体重与体尺性状的主成分分析。结果表明,母鹅的体重与体斜长、龙骨长、胫围、跖长存在极显著相关(P＜0.01),与其他各体尺指标均无显著相关性;公鹅的体重与体斜长、龙骨长、胫围、半潜水长、跖长、骨盆宽、胸宽存在极显著相关(P＜0.01),与颈长显著相关(P＜0.05)。从主成分的特征根和贡献率来看,第Ⅰ主成分主要反映体型外貌特征,第Ⅱ主成分主要反映体躯特征,第Ⅲ主成分主要反映颈部特征,第Ⅳ、第Ⅴ主成分主要反映胸部特征。广丰白翎鹅的体重和大部分体尺性状有显著相关关系,因此主成分分析指标对广丰白翎鹅的选种选育具有重要的意义。

Principal Component Analysis of Body Weight and Body Measurement of Guangfeng White Geese

In this study,to provide the basis for the breeding and comprehensive evaluation of Guangfeng White geese,the body weight and body measurement traits were measured and analyzed by principal component analysis. The body weight and body measurement index of 5.5 months old Guangfeng White geese were analyzed,with body length,keel length,tibia girth and long plantar(P<0.01),but had no obvious relation with other body size indexes; the body weight of the gander had significant correlation with body length,keel length,tibia girth,semi submersible long,long plantar,broad pelvis and chest width(P<0.01),and also had relation with the long neck(P<0.05). Seeing from the characteristic root and contributing rate of the principal component,the first principal component mainly reflected body appearance characteristics,the second principal component largely reflected body characteristics,the third reflected neck characteristics,the forth and the fifth reflected chest characteristics. The body weight and most traits of Guangfeng White geese had significant correlation,and it suggested that the analysis indicators of principal component had important implication to breed selection.