大白专门化品系W62系的选育

Breeding of Landrance specialized line W62

2001年从法国伊彼得种猪优选公司引进的大白公猪23头、母猪115头,同年从北京养猪育种中心引进的法系大白公猪6头、母猪78头,合并组成基础群,在清远原种场进行选育。采用开放式闭锁繁育方法,期间引入外血,优化血缘血统,加强种猪体型、繁殖性能的选育。经过近10年的选育,培育成了W62系,具有体型高长、产仔数高的突出特点,适合作为高产和大体重上市配套系。

The nucleus herd was composed by 115 sows and 23 boars imported from Hybrid Company of France in 2001,and 78 sows and 6 boars from Pig Breeding Center of Beijing.The open systematic breeding and the Best Linear Unbiased Prediction(BLUP)method were used in the breeding system.The specialized line W62 was obtained after nearly ten years of breeding.The line W62 possessed the characters of high and long body and high reproduction performance.This line was a suitable dam line in the WS501 Synthetic Line.