Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (2): 22-26.doi: 10.11924/j.issn.1000-6850.2014-1954

Special Issue: 畜牧兽医

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Canonical Correlation Analysis among Some Traits of Suqin Green-eggshell Layer

Ma Meng1,2, Wang Kehua1, Qu Liang1,2, Guo Jun1, Shen Manman1, Dou Taocun1,2   

  1. (1Institute of Poultry Science of Jiangsu Province, Jiangsu Yangzhou 225003;2Yangzhou Xianglong Poultry Co., Ltd., Jiangsu Yangzhou 225200)
  • Received:2014-07-16 Revised:2015-01-07 Accepted:2014-09-29 Online:2015-03-19 Published:2015-03-19

Abstract: In order to study the relationship between first laying traits, laying traits in the whole period of laying and body measurement traits of Suqin Green-eggshell layers, we selected 13 variables in 3 traits of 30 Suqin Green-eggshell layers which had the laying record in the whole period to conduct canonical correlation analysis. As the results showed that: the 1st and 2nd canonical correlation coefficients between first laying traits and the whole period laying traits of Suqin Green-eggshell layers were 0.849(P<0.01) and 0.716(P<0.01),accounting for 70.5% and 28.6% of the total correlation, respectively. The 1st and 2nd canonical correlation coefficients of first laying traits and body measurement traits were 0.821(P<0.01) and 0.749(P<0.05), accounting for 59.3% and 36.6% of the total correlation, respectively. The 1st canonical correlation coefficient of the whole period laying traits and body measurement was 0.861(P<0.05), accounting for 77.5% of the total correlation. The analysis indicated that main traits of the canonical correlation coefficients in 3 traits were the first egg age, body weight at first egg, body weight at period when the egg weight reached average egg weight, average egg weight, body slanting length and keel length, the whole period laying traits and first laying traits had the highest correlation in 3 traits.