摘要： 中国瘦肉猪母本新品系（DVI）系，是利用国内外优秀猪种资源：太湖猪、长白猪和施格猪杂交育成的，经过6个世代的选育，其经产猪的平均窝产仔数13头以上，平均日增重665g，胴体瘦肉率59.32%，DVI系经产母猪与大白猪、杜洛克和皮特兰杂交，其窝产瘦肉量分别是462kg，470kg，和492kg。

关键词: 猪, 育种, 杂交利用, 母本新品系, 瘦肉型

Abstract: The new dam line (D VI) in Chinese lean type pigs, which was formed by reciprocal cross breeding among famous breeds like Taihu, Landrace and Seghers. Through six generations selection, the multiparious sows had an average litter size above 13, average daily gain 665g, and 59.32% lean meat percentage with good quality of muscles during fattening. The multiparious sows of D VI mated with Large White , Duroc or Pietrain, and the lean meat yield per litter reached 462 kg, 470 kg or 492 kg respectively.

Key words: Pigs, Breeding, Cross Utilization, New Dam Line (D VI)