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当前位置: 首页 > 文章 > 皖东牛体尺与体重的主成分分析 安徽农业大学学报 2016,43 (6) 885-890
Position: Home > Articles > Principal component analysis of body weight and size of Wandong cattles Journal of Anhui Agricultural University 2016,43 (6) 885-890

皖东牛体尺与体重的主成分分析

作  者：
刘洪瑜;刘成雪;王恒;李柏旭;张运海
单  位：
安徽农业大学动物科技学院;凤阳县大明农牧科技发展有限公司;安徽地方畜禽遗传资源保护与生物育种省级实验室
关键词：
皖东牛;体尺性状;体重;主成分分析
摘  要：
对皖东公牛体重、体高、体斜长、胸围、胸宽、胸深、管围、坐骨端宽和尻长等9个体尺性状和体重进行了测定,母牛在公牛9个性状基础上增加腹围性状,选择公牛累计贡献率达86.44%、母牛累计贡献率达85.37%的4个主成分进行分析。结果表明,体重、坐骨端宽、胸宽变异系数较大,选育潜力也相对较大。皖东牛成年公、母牛体重与体高、体斜长、胸围呈极显著正相关(P<0.01),其他性状间存在不同程度的相关。各主分量的特征根分布较广,第一主成分反映出皖东牛整体结构的生长发育状况,第二和第四主成分主要反映皖东牛中躯和后躯的发育状况,母牛的第四主成分反映皖东牛后躯的发育状况,公牛的第四主成分反映皖东牛骨骼的发育状况。
译  名：
Principal component analysis of body weight and size of Wandong cattles
作  者：
LIU Hongyu;LIU Chengxue;WANG Heng;LI Baixu;ZHANG Yunhai;School of Animal Science and Technology,Anhui Agricultural University;Anhui Provincial Key Laboratory of Local Animal Genetic Resources Conservation and Biobreeding;Anhui Province Livestock and Poultry Genetic Resources Protection Center;Fengyang Daming Agriculture and Animal Husbandry Science and Technology Development Co.,Ltd;
关键词：
Wandong cattle;;body size;;body weight;;principle component analysis
摘  要：
In the present study, the body size and weight of the Wandong cattle were measured. Four principal components that accounted for > 86.44% in bulls and > 85.37% in cows of the accumulative contribution rate were used for the principal component analysis. The result showed that the coefficient of variation was relatively high in body weight, sciatic wide, and chest width, indicating great potential in breeding selection. Moreover, a significantly positive correlation between the body weight and body height, body length, and chest circumference was found(P<0.01), while different degrees of correlations existed between the rest of measurement traits. The eigenvalue of each of individual principal components was distributed broadly. The first principal component reflected the entire growth and development condition of Wandong cattles, while the second and fourth principal components reflected the development of middle and hindquarter. The fourth principal component reflected the development of the cow hindquarter and the bull bone development, respectively.

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