to determine the effect of the feeding system (concentrate and wheat straw: T; total mixed ration comprised of the same concentrate, maize silage and wheat straw: TMR) and breed (Limousine: LI; Retinta: RE) on growth performance, carcass characteristics and meat quality. The diets were administrated ad libitum for 193 days. The average daily weight gain was similar (P N 0.05) for both diets, while the LI bulls grew significantly (P b 0.05) more than RE. T bulls showed