The objective ofthis research was to evaluate the dry matter intake (DMI) and nutrient consumptionin Nellore and Red Norte steer finished in a feedlot and compare the actualand predicted values by NRC (2000), CNCPS 5.0 and BR-CORTE systems. Forty-oneanimals, 19 Nellore and 22 Red Norte steers, with initial live weight of 361± 31 kg and 367 ± 30 kg, respectively, were used. The experimentlasted 84 days, with 28 days for adaptation and 56 experimental days. The animalswere weighed at the beginning and at end of each 28-day period after 16 hoursfasting. The dry matter intake was estimated by LIPE, chrome oxide and indigestibledry matter (DMi) markers. There were no differences between Nellore and RedNorte DMI when expressed in kg/day (10.66 vs. 10.44). When intake was expressedin percentage of live weight (% LW), Nellore steer presented higher intake thanRed Norte steer (2.55 vs. 2.39%). All the systems evaluated presented a lowerpredicted intake than the observed intake. However, these differences were smallerfor crossbreed animals.
