Sustainable technological alternatives, which will maintain a constant uniform beef supply year round, are needed, if Brazil is to maintain its position, as one of the most important players in the world beef market. One approach is to more intensively use the alternatives available for pasture management and feed supplementation. However, the responses obtained could be enhanced by using animals with superior genetic makeup, to make better use of the resources provided. Thus, a grazing experiment was designed to evaluate combinations of pasture grasses (Brachiaria and Panicum), pasture management (feed supplementation and rotational grazing) and animal genetic groups.