RESUMOAvaliou-se o efeito da substituição do milho pela manipueira + ureia (0; 25; 50; 75 e 100%) na dieta de ovinos sobre as características de carcaça e a composição tecidual da perna. Quarenta animais foram distribuídos em delineamento inteiramente casualizado, sendo o peso inicial utilizado como covariável, e abatidos após 70 dias de confinamento. O peso corporal ao abate e os pesos de carcaça decresceram linearmente com a substituição, assim como os rendimentos de carcaça quente (42,77 a 39,12%) e comercial (41,22 a 37,55%) e área de olho-de-lombo (9,80 a 7,14 cm²). Os pesos dos cortes cárneos decresceram linearmente, mas o rendimento dos mesmos não foi alterado. Verificou-se decréscimo linear para a largura da garupa e os índices de compacidade da perna e da carcaça. Os pesos dos componentes tissulares da perna, o percentual de músculos, a relação músculo:osso e o índice de musculosidade da perna (0,37 a 0,34 g cm) decresceram linearmente com a substituição. O percentual de ossos aumentou linearmente (20,07 a 22,58%), mas o percentual de gordura não foi influenciado, assim como as relações músculo:osso e gordura subcutânea:gordura intermuscular. Não se recomenda a substituição do milho pela manipueira + ureia.Palavras-chave: alimento alternativo, energia, mandioca, morfometria, musculosidade Carcass characteristics and tissue composition of Santa Ines sheep fed manipueira ABSTRACTThe effects of replacing corn with manipueira + urea at 0; 25; 50; 75 and 100% in the diet of sheep on the carcass characteristics and tissue composition of the leg were studied. Forty sheep were distributed in a completely randomized design, with initial weight used as covariate, and slaughtered after 70 days of confinement. Slaughter body weight and carcass weights decreased linearly with the substitution, as well as hot carcass (42.77 to 39.12%) and commercial yields (41.22 to 37.55%) and longissimus muscle area (9.80 to 7.14 cm²). The weight of all meat cuts decreased linearly, but the yield of the same has not changed. There was a linear decrease to the rump width and carcass and leg compactness index. The weights of the tissue components of the leg, the percentage of muscles, the muscle: bone ratio and muscularity leg index (0.37 a 0.34 g cm -1 ) decreased with the replacement. The percentage of bones increased linearly (20.07 to 22.58%), but the fat percentage was not affected, as well as the muscle: bone ratio and subcutaneous fat: intermuscular fat ratio. It is not recommended to replace corn by manipueira + urea.

The effect of the replacement of corn with the liquid residue of cassava was evaluated at levels of 0, 25, 50, 75, and 100% in the diets of sheep on the intake and nutrient digestibility, weight gain, and carcass characteristics. Forty non-castrated crossbred Santa Ines sheep at 4 months of age and an initial body weight of 19.5 ± 2.5 kg were slaughtered after 90 days at the feedlot. A quadratic effect was found for intake of dry matter (DM), organic matter (OM), non-fiber carbohydrates (NFC), and digestible OM, with estimated values of 1130, 1080, 558, and 777 g/day at 11.2, 11.9, 30.8, and 2.18% of replacing corn with liquid residue of cassava, respectively. However, the intake of crude protein (CP) and neutral detergent fiber (NDF) decreased linearly around 105 to 45.3 g CP/day and 413 to 284 g NDF/day. The same effect was found for digestibility of DM (715 to 649 g/kg), OM (725 to 669 g/kg), CP (801 to 759 g/kg), and NDF (486 to 379 g/kg), which decreased linearly as the dietary liquid residue of cassava increased. The maximum average daily gain (174 g/day) was estimated with a 22.4% replacement level. Liquid residue of cassava can replace up to 25% of the corn in the diets of sheep, since it was possible to obtain a gain above 100 g/day, which is considered to be satisfactory.