Medidas de eficiência alimentar para avaliação de bovinos de corte

The converting efficiency of feed into products of animal source is an important issue for the profitability and sustainability of the beef cattle production systems. During the last decades, there has been an increased interest at the study of features that can express the feed efficiency, especially the residual feed intake (RFI). These studies guided this review which discusses the results and implications of the genetic selection based on RFI, and also the new perspectives in the studies of feed efficiency in beef cattle.