Records from 17,796 Angus x Nellore cattle out of 50 Associated Herds from the “Program Nature”, in the states of Goiás, Minas Gerais, Mato Grosso, Mato Grosso do Sul, Paraná, Rio Grande do Sul, São Paulo and Tocantins were analyzed in order to estimate the effects of maternal and individual heterosis on the weight gain from birth to weaning. The used statistical model included the fixed effects of a general mean and contemporary groups, maternal and individual heterozygosity (covariables), random […]