鲁西斗鸡体尺、体重及屠宰性状间的典型性相关分析

Canonical Correlation Analysis of Body Size, Growth Character and Carcass Performance in Luxi Cockfighting

对鲁西斗鸡的体尺、体重和屠宰3组14个性状进行测定,并对这些变量进行了典型性相关分析。结果表明,体尺指标(胸深、胸宽、胫长、体斜长、龙骨长)间的相关系数为0.682～0.767;体重性状(初生重、180日龄重、日增重)间的相关系数为0.306～0.935,屠宰性能(胴体重、屠宰率、半净膛重、半净膛率、全净膛重,全净膛率)各项指标间高度相关,相关系数为0.945～0.986。体重性状和体尺性状间、体重性状与屠宰性状间及体尺性状与屠宰性状间的第一个典型相关系数差异极显著,其典型相关系数分别为0.705、0.560和0.878,贡献率分别为0.979、0.984和0.820。

Fourteen variants of three sets of traits including body size traits,growth traits and carcass traits were measured and analyzed using, canonical correlation analysis in Luxi cockfighting. The resuks showed that correlation coefficients were 0. 682 to 0. 767 between body size index （chest depth, chest width, shank length, bias length, chest bone length）, 0. 306 to 0. 935 between growth traits（birth weight, 180 day weight, daily gain）, and 0. 945 to 0. 986 between carcass performance （car- cass weight, slaughter rate, semi-eviscerated weight, semi-eviscerated rate, and eviscerated weight, eviscerated rate） which were highly relevant. The results showed that the first canonical correlation were obtained between growth traits and body size traits（0. 705）, growth traits and carcass traits（0. 560）, body size traits and carcass traits （0. 878）. They accounted for 0. 979, 0. 984 and 0. 820 of total correlation,respectively.