荷斯坦牛体型线性性状间的通径分析  

PATH ANALYSIS FOR LINEAR TRAITS IN SHANXI HOLSTEINS

作　　者：刘小军[1] 吴龙洋 黄应祥[1] 刘振禄 郭江 

机构地区：[1]山西农业大学畜牧系,大同市奶牛场

出　　处：《山西农业大学学报》1994年第4期402-404,共3页

摘　　要：木文利用大同奶牛场从１９９１年到１９９３年５次共６５４头成母牛体型线性鉴定的资料，对１５个主要性状及由此计算出的体型整体评分进行了通径分析，结果表明：体型线性性状间的相关，除少数达到中等或中等以上程度外，大部分都很小。应用体高、蹄角度、前房附着、尻宽、体强等性状来直接选择体型整体评分将是有效的。Recods of 684 Holsteins evalusted 5 times from 1991-1993 on Datong Dairy Farm were studied using path analysis to investigate the ralationship between 15 type traits scored on a linear scale and final score.The results showed that the correlations between different type traits were lower except a few of them were moderately highter.Selection for stature,foot angle,fore udder attachment,thurl width,strength and dairy form, vould be effective in improving final score.

关 键 词：体型性状 荷斯坦牛 通径分析 

分 类 号：S823.2[农业科学—畜牧学]