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Cluster Analysis of Laying Performance and Production Area Ecology of 11 kinds of Chicken

ZHANG Xue-yu  SU Yi-jun  LI Guo-hui  TU Yun-jie  JIANG Yong-jun  YANG Fu-sheng  
【摘要】:[Objective] The aim was to explore the classification basis of Chinese local chicken for providing theoretical basis of giving full play to the genetic potential, heterosis, new ideas and methods of new varieties and strains breeding, identification and evaluation. [Method] The multivariate statistical analysis of laying performance and production area ecology of 11 kind of chicken was done by principal component analysis and cluster analysis. [Result] The cluster analysis of 4 egg laying performance indexs indicated that 11 kinds of chicken can be roughly classified into large chicken and small chicken; 10 indexs of multivariate statistical analysis indicated that 11 kinds of chicken can be classified into high altitude type and low altitude type when first 3 eigenvalues were selected as 3 principal component by principal component analysis(94.99% of the total amount of information), and similarity coefficient was computed according to first three principal component values of each kind and then cluster analysis was done with nearest neighbor way. [Conclusion] Ecological factor was also an important aspect of assortment.

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