猪的性状相关与聚类分析

Character Interaction of Pig and Gathering Type Analyse

对淮南猪82头半同胞测定猪13个经济性状进行相关与聚类分析,结果表明:同类性状间的相关程度较高,不同类的性状相关程度较弱,体长与产肉性能存在强的正遗传相关,与产脂性状存在弱负相关的规律,在选育中加大体长,可提高瘦肉率,这在淮南猪选育中有着非常重要意义;聚类图呈树枝状,基本上将13类性状分为4大类,第一类为增重速度,第二类为肥肉率,第三类为屠宰率,第四类为瘦肉率,与传统的性状分类结果基本相同,而应用多元统计中的聚类分析方法,可将相关程度较高的经济性状聚为一类,清晰地反映在一张图上.

13 economie character of 82 half-brothers Huainan pig interaction and gathenng type analyse was performed. Result show;similar characters interaction level relatively high,different characters interaction level relatively poor,body long and producting pork performance with strong positive interaction and producting fat performance with poor negative interaction,gathering type picture with htanch type, 13 economie characters are divided 4 types,and traditional character classify result is basic alike.