瘦肉型猪早期选种技术研究  

Technique of early stage selection on lean-type pigs:

作　　者：周海深[1] 王增刚[1] 姜彦军[1] 车晶[1] 

机构地区：[1]黑龙江省农垦科学院红兴隆科学研究所

出　　处：《浙江农业学报》1994年第S1期16-18,32,共4页Acta Agriculturae Zhejiangensis

摘　　要：可以应用早期活体性状进行早期选择。用４月龄时活体平均背膘（Ｐ－）预测９０ｋｇ胴体瘦肉率的准确性较高（ｒ＝０．６９４３），４月龄时可根据体重和平均背膘（Ｐ－）、胸围和平均背膘（Ｐ－）或腹围和平均背膘（Ｐ－）对瘦肉型猪进行早期选择，较６月龄选择提前２个月，且准确性较高。It is illustrated that the application of early livebody traits to early stage selection is feasible. The average backfat of a hog at forth month age can be used to predict it's carcass lean meat percentage at 90kg live weight with a higher precision(0.6943). Replacement can be selected according to live weight and average backfat, circumference of chest and average backfat or circumference of abdomen and average backfat. The method made selection two monthes earlier with a higher precision than classical method at sixth month age.

关 键 词：早期选择 活体性状 平均背膘 

分 类 号：S828.2[农业科学—畜牧学]