Effect of Different Selection Criteria on Performance, Carcass and Meat Quality of Nellore Young Bulls

This study was carried out to evaluate the effects of selection criteria for post-weaning daily gain (PWDG) and early sexual heifer precocity (PP14) on performance, carcass traits meat quality Nellore bulls. In year one, 50 animals were selected according their expected progeny differences (EPDs) PWDG grouped as high (HG) or low (LG) groups. two, EPD PP14 also (HP) (LP). After slaughter, samples longissimus muscle area (LMA) used quality. Most performance not affected by criteria. However, HG group had higher dressing percentage (p = 0.028), LMA 0.02) fat trim in forequarter 0.04) compared LG group. The HP tended have greater dry matter intake 0.08), 0.05), rump 0.04), heavier striploins 0.07), tenderloins 0.09) briskets 0.08) with LP conclusion, based divergent groups has a small impact traits.