郏县红牛成年母牛体尺指标与体重的相关性分析
2021-06-17刘贤张花菊吴胜军李志明孙红霞王献伟徐泽君黄永震张子敬茹宝瑞
刘贤 张花菊 吴胜军 李志明 孙红霞 王献伟 徐泽君 黄永震 张子敬 茹宝瑞



摘要 为探讨郏县红牛成年母牛体尺指标与体重的相关性,运用SPSS 26.0软件对47头郏县红牛成年母牛体尺指标、体重的测定结果进行相关分析和通径分析,并建立了最优回归方程。结果表明:郏县红牛的体重( )与体高(X1)、体长(X2)、胸围(X3)、坐骨端宽(X4)、管围(X5)呈极显著正相关(P<0.01);胸围、体长、坐骨端宽对体重的直接影响较大,而管围、体长、坐骨端宽对体重的间接影响较大。构建的最优回归方程为=-739.750+1.859X2+4.158X3+5.559X4。
关键词 郏县红牛;体尺;体重;相关性
中图分类号 S823文献标识码 A
文章编号 0517-6611(2021)02-0075-02
doi:10.3969/j.issn.0517-6611.2021.02.022
开放科学(资源服务)标识码(OSID):
Analysis of Correlation between Body Size Indices and Body Weight of Adult Cow of Jiaxian Red Cattle
LIU Xian1,ZHANG Huaju2,WU Shengjun1 et al (1.Henan Animal Husbandry General Station,Zhengzhou,Henan 450008; 2.Pingdingshan Animal Husbandry Technology Promotion Station,Pingdingshan,Henan 467000)
Abstract In order to investigate the correlation between body size indices and body weight of adult cows of Jiaxian Red Cattle,the correlation analysis and path analysis were carried out on the determination results of body size indices and body weight of 47 adult cows of Jiaxian Red Cattle by using SPSS 26.0 software.And the optimal regression equation was established.The results showed that body weight () was positively correlated with body height (X1), body length (X2), chest circumference (X3), hucklebone width (X4), and circumference of cannon bone (X5) (P<0.01).The chest circumference, body length and hucklebone width had greater direct effects on the body weight, and circumference of cannon bone, body length and hucklebone width had greater indirect effects on the body weight.The optimal regression equation constructed was=-739.750+1.859X2+4.158X3+5.559X4.
Key words Jiaxian Red Cattle;Body size;Body weight;Correlation
郏县红牛是我国八大地方优良黄牛品种之一,主要分布于河南省郏县、鲁山和宝丰等地,具有体格大、体质结实、肌肉发达、耐粗饲、抗病力强、遗传性能稳定等优点[1-2]。近年来,平顶山市郏县将郏县红牛作为畜牧业主导品种,以高档牛肉的生产与开发为主要方向,大力推进郏县红牛产业发展,郏县红牛的品种保护、选育提高及高档牛肉生产专用类群的培育成为重点突破方向。体尺与体重是研究家畜个体生长发育情况的重要指标[3],目前常采用体高、体长、胸围、管围等体尺性状来制定体重估计公式[4-5]。不同品种间体尺指标与体重的相关性具有一定差异,而对郏县红牛体尺指标与体重相关性的研究尚未见报道。笔者运用SPSS软件对郏县红牛成年母牛的体重、体尺指标进行了相关性分析和通径分析,建立了最优回归方程,以期揭示郏县红牛成年母牛各性状间的相关关系,指导郏县红牛的选种选育工作。
1 材料与方法
1.1 试验材料……p>
