Line 1 is a European Large White Landrace which represents the upper 5 th percentile for percent lean. Line 2 is a commercial terminal cross which represents average U.S. pigs for percent lean. Liveweight from a population reared using segregated early weaning procedures. Carrier pigs had small but nonsignificant advantages for carcass composition. No significant effect of the halothane gene was detected for marbling or any of the carcass composition traits.
Least squares means for meat quality and carcass composition.