Abstract
Two studies will be conducted to determine energy and protein requirements, as well as the carcass and meat traits of feedlot ½ Dorper × ½ Santa Inês crossbred lambs fed diets with different quality roughages. In the first study, 84 lambs weaned at 56 days of age will be assigned, according to the initial body weight, to one of two groups (VBQ - animals fed with a diet composed by a low q…