Thity-sixlambs, 12 crossbred Texel x Bergamácia (TB), 12 crossbred Texel x SantaInês (TS) and 12 purebred Santa Inês (SI) lambs were individuallyfinished in fedlot for 50 days (from 130 to 180 days of age). Each genetic groupconsisted of six males and six females, fed three different diets: 1 = withoutcoffee hulls (control); 2 = with in nature coffee hulls; 3 = with treatedcoffee hull with urea and grounded soybean grain. The animals were slaughteredat 180 days, in average. Then, the cold carcass cuts and the composition inmuscle, bone and fat of the leg, shoulder and loin were evaluated. The use ofthe coffee hull, treated or not, did not affect the weight of the other carcasscuts and the composition of the leg, shoulder and loin. Santa Inês lambsshowed smaller weight for the leg and loin muscle. The genetic group did notinfluence the weights of the others components, only the shoulder tended toshow significant effect, indicating to be heavier for TB and TS animals. Themales showed higher weights for posterior and previous arms, weights of themuscles of the shoulder, leg and loin and, also, higher bone weights of theshoulder and loin.
