RESUMO -Avaliou-se a digestibilidade dos nutrientes de dietas contendo silagem de capim-elefante amonizado e farelo de cacau ou torta de dendê em substituição parcial ao concentrado (à base de milho e farelo de soja) na alimentação de ovinos. Foram utilizados 18 machos Santa Inês não-castados (peso corporal 22,6 kg) distribuídos em um delineamento inteiramente casualizado, em esquema fatorial 2 x 3, com três repetições. O período experimental consistiu de 77 dias (14 dias de adaptação e três períodos de 21 dias para coleta dos dados) e as dietas foram compostas de 60% de volumoso e 40% de concentrado. Como volumoso, utilizou-se silagem de capim-elefante com ou sem uréia e três concentrados: um à base de milho e farelo de soja, outro contendo milho, farelo de soja e farelo de cacau e o outro contendo milho, farelo de soja e torta de dendê.A amonização e a substituição de 40% do concentrado à base de milho e farelo de soja por farelo de cacau ou torta de dendê não afetaram a digestibilidade das dietas. O farelo de cacau e a torta de dendê podem ser utilizados como alternativas ao concentrado na dieta de ovinos, visto que substituição parcial do concentrado por esses subprodutos não afetou a digestibilidade dos nutrientes da dieta.Palavras-chave: amonização, composição químico-bromatológica, subprodutos, uréia Digestibility of nutrients in diets containing ammoniated elephantgrass and cocoa meal or palm kernel cake fed to sheepABSTRACT -The objective of this trial was to evaluate the apparent total tract digestibility of nutrients on sheep fed diets containing ammoniated elephantgrass silage plus cocoa meal or palm kernel cake, which partially replaced corn and soybean meal in the concentrate. Eighteen non-castrated Santa Inês sheep averaging 22.6 kg of body weight were assigned to a completely randomized design with a 2 x 3 factorial arrangement of treatments. The experiment lasted 77 days with 14 days for diet adaptation and three 21 days periods for data and sample collection. Diets were composed by 60% of forage and 40% of concentrate. Treatments containing treated (urea) or untreated elephant grass silage plus one the following concentrate mixture: 1) corn and soybean meal, 2) corn, soybean meal and cocoa meal, or 3) corn, soybean meal and palm kernel cake. Ammoniation and replacement of 40% of corn and soybean meal in the concentrate with cocoa meal or palm kernel cake did not significantly change the dietary digestibility of nutrients. It is recommended the partial replacement of corn and soybean meal with cocoa meal or palm kernel in diets of sheep.
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