11个地方鸡品种性状间的典型相关分析

Canonical Correlation Analysis of Traits for Eleven Native Chicken Breeds

对中国部分地方鸡品种的体尺性状、屠宰性状、产蛋性状和生态性状等4组性状间的17个变量关系进行了典型相关分析。结果表明,体尺性状和屠宰性状间、体尺性状与生态性状间以及屠宰性状与生态性状间的第1个典型相关系数达极显著水平,分别占总相关信息的38.17%、42.73%和42.13%,其典型相关系数分别为0.998、0.997和0.998;体尺性状与产蛋性状间和产蛋性状与生态性状间的第1个典型相关系数达显著水平,分别占总相关信息的42.55%和66.79%,其典型相关系数分别为0.965和0.984。研究结果对于鸡的遗传育种具有一定的参考价值。

Seventeen variants of four sets of traits including body measurement traits, carcass traits, egg laying traits and ecological traits were analysed using canonical correlation analysis in Chinese native chicken breeds. The results showed that highly significant correlation coefficients of the first canonical correlation were obtained between body measurement traits and carcass traits（0. 998） ,body measurement traits and ecological traits（0. 997）, as well as between carcass traits and ecological traits（0. 998）. They accounted for 38.17%, 42.73% and 42.13% of total correlation, respectively. The first canonical correlation coefficient between body measurement and egg laying traits（0. 965）, as well as between egg laying traits and ecological traits（0. 984） were significant. They accounted for 42.55% and 66.79% of total correlation, respectively. The results of analysis may be useful for genetics and breeding of chickens.