陕北细毛羊净毛量影响因子通径分析  

Path Coefficient Analysis on the Influencing Factors of Clean-fleece Weight of Shaanbei Fine-wool Sheep

作　　者：武和平[1] 周占琴[1] 

机构地区：[1]西北农林科技大学畜牧兽医学院,陕西咸阳712039

出　　处：《西安联合大学学报》2002年第2期30-33,共4页

摘　　要：经对定边种羊场 4 5只陕北细毛羊的 11个数量性状与净毛量的相关分析、通径分析 ,证明净毛率和污毛量是直接影响净毛量的两个关键因素 ,周岁体重、体长、胸围、体高等性状则是通过污毛量与净毛率的互作而间接影响净毛量的 .因此提高陕北细毛羊净毛量 ,首先应对净毛率和污毛量进行选择提高 ,其次应兼顾周岁体重、体长。Shaanbei fine wool sheep were used to determine the correlation coefficient and path coefficient between the 11 quantitative characters and clean fleece weight. The results indicated that both the clean yield and greasy weight were the key factors influencing the clean fleece weight. The yearling weight, body length, heart girth and height acted on clean fleece weight indirectly by the interaction between greasy weight and clean yield. It was suggested that to increase the clean yield, the clean fleece rate and greasy weight be improved first, together with other factors such as yearling weight, heart girth and height.

关 键 词：陕北细毛羊 净毛量 影响因子 通径分析 

分 类 号：S826.91[农业科学—畜牧学]