Abstract: This experiment carried on the growth,the carcass quality and the meat quality of （L×Y）、（D×LY）and（PD×LY）. The results indicated that: PD×LY was the best on the averageday gain,the feed/gain ration and the slaughter ration,there was significant different with（L×Y）.The eye muscle area and the hind leg ration of （PD×LY）is 48.09 cm2、34.23%, was highest in three combinations. There was different with（L×Y）(P<0.05), was not remarkable with（D×LY）(P>0.05);The meat color and the tenderness of （D×LY）was the best, the difference was remarkable (P<0.05); The dehydration rate, the cooked meat rate and the tenderness of（PD×LY） was the worst.The cooked meat rate and the tenderness were remarkable different with other groups (P<0.05).The synthesis showed that: the averageday gain, the slaughter ration, the eye muscle area as well as the hind leg ratation were better admited by Pretrain Pigs genes ,but lead to worst meat quality.The production performance of （D×LY）as a classical hybrid combination was stable.

Key words: pigs; hybrid combination; the growth; the carcass quality; the meat quality