›› 2018, Vol. 45 ›› Issue (4): 1009-1015.doi: 10.16431/j.cnki.1671-7236.2018.04.022

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Principal Component Analysis Between Body Size Traits and Body Weight of Different Feathers Kirin Hens

WU Haohao, GUO Zhansheng, WU Zhengmin, LIANG Lijiao, WANG Zhijing, GAO Zhenhua   

  1. College of Agronomy, Guangdong Ocean University, Zhanjiang 524088, China
  • Received:2017-10-09 Online:2018-04-20 Published:2018-04-25

Abstract:

In this study,the body weight and body size traits were measured and analyzed by principal component analysis of 5-week-old different feathers Kirin hens to understand the inherent relationship between the body weight and body size traits of different feather Kirin hens and provide the basic information for their selection and breeding.50 one-day-old White feathers Kirin hens and 50 one-day-old Yellow feathers Kirin hens were selected in this experiment and were divided into 2 groups with 5 replicates per group,10 hens per replicate,the body weight and body size were measured at 5 weeks old under the same feeding conditions.The results showed that the variation coefficient of tibia length of White feather Kirin hens and tibia girth of Yellow feather Kirin hens were large which were breeding potential traits.The correlation between body weight and tibia length of White and Yellow feather Kirin hens were both extremely significant (P < 0.01) with the correlation coefficient was 0.931 and 0.944,respectively.And there were significant correlation between body weight and sternal length,tibia girth,tibia length and sternal length (P < 0.05).The 7 body measurement traits of different feathers Kirin hens could simplified to 4 principal components that occupied 94.784% in White feathers Kirin hens and 94.809% in Yellow feathers Kirin hens of total information amount,and each of 4 principal components for information were not identical and could reflect Kirin hens' bodily form feature.In conclusion,there was a significant correlation between body weight and body size traits of different feathers Kirin hens under free feeding conditions.And it suggested that the selected 4 principal components could reflect Kirin hens' bodily form feature and provide the basic information for selecting and breeding in different feathers Kirin hens.

Key words: White feather Kirin hens; Yellow feather Kirin hens; body weight; body size traits; principal component analysis

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