| 荷斯坦牛体型线性性状对泌乳量的主成分分析 |
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| 引用本文： | 程郁昕,江汪洋,许春香.荷斯坦牛体型线性性状对泌乳量的主成分分析[J].中国牛业科学,2003,29(4):5-7. |
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| 作者姓名： | 程郁昕 江汪洋 许春香 |
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| 作者单位： | 1. 安徽技术师范学院动物科学系,安徽凤阳,233100
2. 安徽淮南乳品公司,安徽淮南,232000 |
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| 基金项目： | 安徽省教育厅自然科学基金项目(2000JL057)资助. |
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| 摘 要： | 在荷斯坦牛体型性状与泌乳量相关性分析的基础上进行主成分分析，选取累计贡献率达85％以上的前9个主成分，并进行这9个主成分与泌乳量的相关分析。结果表明，主成分I、Ⅱ是荷斯坦牛泌乳量选择时应考虑的主要指标。
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| 关 键 词： | 荷斯坦牛 体型线性性状 泌乳量 主成分分析 相关性 选择育种 |
| 文章编号： | 1001-9111(2003)04-0005-03 |
| 修稿时间： | 2003年5月14日 |
Principal Component Analysis between Body Conformation Linear Traits and Milk Yield in Holstein Cows |
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| CHENG Yu-xin,JIANG Wang-yang,XU Chun-xiang.Principal Component Analysis between Body Conformation Linear Traits and Milk Yield in Holstein Cows[J].China Cattle Science,2003,29(4):5-7. |
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| Authors: | CHENG Yu-xin JIANG Wang-yang XU Chun-xiang |
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| Abstract: | Principal component analysis based on correlation analysis between body conformation linear traits and milk yield was conducted, the first nine components whose cumulative contribution were accumulated more 85% were selected, and the correlation relationship was studied between them and milk yield. The results showed that the principal components I and I were the key indexes to be considered while milk yield of Holstein cows was rselected. |
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| Keywords: | Principal component analysis Linear trait Milk yield |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
