| 摘要: |
| 【目的】 探讨福建闽清毛脚鸡体尺性状与屠体性状的相关关系，为闽清毛脚鸡的选育提供依据。【方法】 对闽清毛脚鸡的8个体尺性状（体斜长、胸宽、胸深、胸角、龙骨长、骨盆宽、胫长、胫围）和7个屠体性状（活体质量、屠体质量、半净膛质量、全净膛质量、胸肌质量、腿肌质量、瘦肉质量）进行相关和典型相关分析。【结果】 成年公、母鸡体质量分别为2 350.60和2 063.80 g,公鸡的体尺（除胸角外）和屠体性状均显著或极显著（P＜0.05或P＜0.01）高于母鸡。体尺与屠体性状呈不同程度的表型相关，其中以胸深与屠体质量的相关性最高。体尺性状与屠体性状间的第1和第2典型相关系数分别为0.958和0.895，均达到极显著水平(P＜0.01)，其所解释的相关信息占2组性状间总相关信息的94.5%。体尺性状与屠体性状间的相关性主要是由胸深、体斜长、胸宽与活体质量、胸肌质量、全净膛质量的相关性引起的。【结论】 闽清毛脚鸡体尺性状与屠体性状存在相关关系，通过选择体尺性状可达到提高屠体性状的目的。 |
| 关键词: 闽清毛脚鸡 体尺性状 屠体性状 典型相关分析 |
| DOI： |
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| 基金项目:福建省科技厅畜牧科技重大专项（2006NZ0003-3） |
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| Canonical correlation analysis of body measurement traits and carcass traits for Minqing feather-feet chicken in Fujian |
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| Abstract: |
| 【Objective】The purpose of this study was to investigate the correlation between body measurement traits and carcass traits of Minqing feather-feet chicken in order to provide scientific basis for breeding and improving the native breeds.【Method】 The analysis of canonical and canonical correlation for 8 body measurement traits(body slanting length,chest width,chest depth,chest angle,sternum length,pelvic width，shank length and shank circumference) and 7 carcass traits(live body weight，carcass weight，semi-eviscerated weight，eviscerated weight，breast weight，leg weight and lean weight)of Minqing feather-feet chicken was conducted.【Result】 The results showed that the adult body weight of male and female chickens was 2 350.60 and 2 063.80 g,respectively.The body measurement traits and carcass traits of chicken (except the chest angle) were significantly or extremely significantly higher in males than in females(P＜0.05 or P＜0.01) and these indices had correlation in different extents,especially the relationship between chest depth and carcass weight.The first and second coefficients of canonical correlation for body measurement traits and carcass traits were highly significant (P＜0.01).The canonical correlation coefficients of the first and second were 0.958 and 0.895 respectively,which represented 94.5% for the total correlation.The analysis indicated that the main traits for the canonical correlation coefficients were chest depth,body slanting length,chest width and live body weight,breast weight,eviscerated weight.【Conclusion】 It indicated that body measurement traits and carcass traits had correlation,and carcass traits could be increased by selecting body measurement traits. |
| Key words: Minqing feather-feet chicken body measurement trait carcass trait canonical correlation analysis |
