| 摘要: |
| 选取长白后备猪109头，肥育猪64头为试材。测试结果表明，体尺性状与胴体性状存在极显著相关。在制定的三个选择指数中，利用典范相关分析和作者提出的决定系数遗传力提供的信息所构造的选择指数最适合。其决定系数为60.72%，中选符合率为87.5%，体高为正向选择性状，管围和膘厚为负向选择性状，建议该指数为现猪群的选择指数。 |
| 关键词: 长白猪，选择指数，胴体品质，通径分析，典范分析 |
| DOI： |
| 分类号:S828 |
| 基金项目:陕西省科委资助项目 |
|
| Selection of Carcass Quality in Landrace Pigs |
|
Sun Chcngcong, Sun Shiduo, Yuan Zhifa, Zhang Yinghan,Sun Chcngcong, Sun Shiduo, Yuan Zhifa, Zhang Yinghan,Sun Chcngcong, Sun Shiduo, Yuan Zhifa, Zhang Yinghan
|
| Abstract: |
| 109 replacement pigs and 64 fattening hogs were used as the trial materia1s for the experiment.The results showed that the body measurement traits and carcass quality traits had significant correlation.Of the three established indexes,the one,based on the information of the canoncial correlation analysis and determinant coefficient
heritability which was put forward by the writer,was the best.Its determinant coeffiecient was 60.72%,the qualification rate of seleetion 87.5%,body height positive,and circumference of cannon and fat thickness negative.The index can be adopted as the
selection index in the current herd of the Landrace Pigs. |
| Key words: Landrace Pigs,seleetion index,carcass quality,path analysis,canoncial
analysis |
