| 新疆肉牛体尺体重主成分分析 |
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| 引用本文： | 李娜,李红波,闫向民,袁理星,张金山,杜玮,周振勇,张杨. 新疆肉牛体尺体重主成分分析[J]. 安徽农业科学, 2017, 45(31): 103-105. DOI: 10.3969/j.issn.0517-6611.2017.31.033 |
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| 作者姓名： | 李娜 李红波 闫向民 袁理星 张金山 杜玮 周振勇 张杨 |
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| 作者单位： | 甘肃农业大学,甘肃兰州730070;新疆畜牧科学院畜牧研究所,新疆乌鲁木齐830011;新疆畜牧科学院畜牧研究所,新疆乌鲁木齐,830011 |
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| 基金项目： | 现代农业产业技术体系建设专项资金资助，自治区重点研发专项 |
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| 摘 要： | 选择52头成年的新疆肉牛进行体尺、体重统计分析,选择累计贡献率达72.767%的2个主成分进行分析。结果表明:新疆褐牛体尺指标尻长、腰角宽、髋宽、坐骨宽及体重的变异较大,选育潜力大。从主成分的特征根与累计贡献率来看,第1、2主成分起主导作用。第1主成分主要反映体型外貌特征,第2主成分主要反映胸宽特征。
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| 关 键 词： | 新疆肉牛 体尺性状 体重 主成分分析 |
Principal Component Analysis of Body Size and Weight of Xinjiang Beef |
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| Abstract: | Fifty-two adult Xinjiang beef cattle were selected for analyzing body size and body weight,and two principal components with cumulative contribution rate of 72.767 ％ were selected.The results showed that the variation of rump length,lumbar hips,hip width,horn width and body weight of Xinjiang beef cattle was obvious,and the potential for breeding was large.From eigenvalue and cumulative contribution rate of the main component,the first and second principal components played a leading role.The first principal component mainly reflected the appearance characteristics of the body,the second principal component mainly reflected the chest width characteristics. |
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| Keywords: | Xinjiang beef cattle Body size traits Weight Principal component analysis |
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