Canonical correlation analysis of main breeding traits for Landrace
长白猪主要选育性状间的典型相关分析

The analysis of canonical correlation for 14 traits in 3 groups was carried out in the study. The growth and development traits composed of 4 traits, body size 6 traits and fat thickness and appearance 4 traits. The results showed that the first and second coefficients of canonical correlation for the growth and development with the body size, as well as the growth and development with the fat thickness and appearance, was highly significance. The canonical correlation coefficients were 0.647 8 and 0.353 1 with 0.925 and 0.241 7, they represented 96.52% and 99.9% respectively for the total correlation between 2 groups. It was only the first coefficients of canonical correlation highly significance between the body sizes and the fat thickness with appearance, it was 0.328 7 and expressed about 75.59% for the total correlation. The results also showed that the body weights for 2 months and end of the test, chest circumference, ham circumference, back fat thickness and adjusted back fat thickness were the main traits in the study.