Abstract: The goal of any swine genetic improvementprogram is rapid genetic progress in economical-ly important traits.Two keys for significant ge-netic improvement are identification of whichtraits are the most important and accurate re-cords of performance for those traits.Tremen-dous progress has been made in the swine indus-try in the reducing backfat and increasing leanmeat percentage over the past decade.In recentyears,meat quality traits have received more at-tention and have become more important inbreeding p...