Comportamento ingestivo de ovinos alimentados com silagens de capim- elefante contendo casca de café, farelo de cacau ou farelo de mandioca
Data
2009-12
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Editor
Sociedade Brasileira de Zootecnia
Resumo
Um experimento foi conduzido para avaliar o comportamento ingestivo de ovinos alimentados com dietas contendo silagem de capim-elefante com diversos aditivos. Foram utilizados 20 ovinos machos, não-castrados, em um delineamento inteiramente casualizado, com 4 tratamentos e 5 repetições. Os animais receberam dietas com média de 11% de proteína, compostas de 60% de volumoso e 40% de concentrado, com base na matéria seca (MS). Como volumoso, utilizou-se silagem de capim-elefante sem aditivo ou com 15% de casca de café, farelo de cacau ou farelo de mandioca, misturados ao capim-elefante no momento da ensilagem, com base na matéria natural (peso/peso). As variáveis comportamentais foram obtidas a cada dez minutos, durante 24 horas de observação. Os tempos despendidos em alimentação e ruminação foram semelhantes entre as silagens utilizadas nas dietas. Contudo, os animais que consumiram silagem de capim-elefante com farelo de mandioca apresentaram maior tempo de ócio. O consumo de matéria seca e as eficiências de alimentação (g de MS e de FDN/hora) e ruminação (g MS/hora) foram maiores nos animais alimentados com a silagem contendo 15% farelo de mandioca, o que indica que esse subproduto é um bom aditivo para utilização na ensilagem de capim-elefante. A inclusão de farelo de mandioca na ensilagem de capim-elefante melhora alguns parâmetros do comportamento ingestivo.
The experiment was carried out to evaluate the ingestive behavior of sheep fed diets containing elephant grass silage with different additives. Twenty sheep non-castrated male kids were used in a randomized complete design, with four treatments and five replications. The treatments were: elephant grass silage (control); elephant grass silage (75%) + coffee hulls (15%); elephant grass silage (75%) + cocoa meal (15%) and elephant grass silage (75%) + cassava meal (15%). The additives were added at ensilage moment was realized in natural matter basis (weight/weight). The animals received diets with 11% protein in 60% forage and 40% concentrate proportion, on dry matter basis. The behavior variables were obtained every ten minutes during 24 hours of observation. The time spent feeding and ruminating was similar for the different silages. However, the animals that consumed diets with elephant grass silage with the addition of cassava meal showed higher idle time. The dry matter intake and the feeding (g of DM and NDF/h) and ruminating (g DM/h) efficiency were higher for diets with elephant grass silage with addition of 15% cassava meal, that was shown to be a good additive for use in elephant grass ensilage. The inclusion of cassava meal positively affected some parameters of ingestive behavior.
The experiment was carried out to evaluate the ingestive behavior of sheep fed diets containing elephant grass silage with different additives. Twenty sheep non-castrated male kids were used in a randomized complete design, with four treatments and five replications. The treatments were: elephant grass silage (control); elephant grass silage (75%) + coffee hulls (15%); elephant grass silage (75%) + cocoa meal (15%) and elephant grass silage (75%) + cassava meal (15%). The additives were added at ensilage moment was realized in natural matter basis (weight/weight). The animals received diets with 11% protein in 60% forage and 40% concentrate proportion, on dry matter basis. The behavior variables were obtained every ten minutes during 24 hours of observation. The time spent feeding and ruminating was similar for the different silages. However, the animals that consumed diets with elephant grass silage with the addition of cassava meal showed higher idle time. The dry matter intake and the feeding (g of DM and NDF/h) and ruminating (g DM/h) efficiency were higher for diets with elephant grass silage with addition of 15% cassava meal, that was shown to be a good additive for use in elephant grass ensilage. The inclusion of cassava meal positively affected some parameters of ingestive behavior.
Descrição
Palavras-chave
Alimentação, Consumo, Ruminação, Subprodutos
Citação
PIRES, A. J. V. et al. Comportamento ingestivo de ovinos alimentados com silagens de capim- elefante contendo casca de café, farelo de cacau ou farelo de mandioca. Revista Brasileira de Zootecnia, Viçosa, v. 38, n. 8, p. 1620-1626, ago. 2009.