贵妃鸡体尺及屠宰性状的测定与相关分析

Measurement and Analysis of Body Size and Carcass Character of Royal Chickens

为研究贵妃鸡体尺及屠宰性状间的相关性,对13周龄贵妃鸡的体尺和屠宰性状进行了测定,并对测定指标进行分析。结果表明:贵妃公鸡所有的体尺指标均高于母鸡,除胸宽、髋骨宽差异不显著外,其余指标差异均达到极显著水平(P<0.01)。贵妃母鸡翅膀质量、胸肌质量和腹脂质量高于贵妃公鸡,但未达到显著水平(P>0.05);其余指标均是贵妃公鸡大于贵妃母鸡,且差异都达到极显著水平(P<0.01)。相关分析结果显示,半净膛质量和全净膛质量相关系数最高,达到了0.997;屠宰性状与体尺性状之间,除翅膀质量、胸肌质量与体斜长、胸深、龙骨长、胫长相关达到显著水平外(P<0.05),其余指标间相关未达到显著水平(P>0.05)。

The body size and carcass traits of 13-week-old Royal chickens were measured and analyzed to study the relationships of each trait.The results showed that all the body size indicators of the cock were higher than that of the hen,showing extremely significant differences between cock and hen（P0.01） except for the chest width and pelvic width.The weight of wings,Breast muscle and abdominal fat of hen were higher than that of cock,but the differences were not signi-ficant（P0.05）.However,other carcass indicators of cock were very significantly（P0.01） higher than that of hen.Correlation analysis indicated that the maximum correlation coefficient（0.997） was found between half-eviscerated weight and eviscerated weight.There were significant correlations among the most indicators of the body size.The result was also found among the most indicators of slaughter traits.Significant correlation was showed between the wings weight,breast muscle weight and body length,chest depth,keel length and tibia length.But the others indicators of the body size were not significant（P0.05） correlated with the indicators of slaughter trait.