Tropical animal health and production · 2017
Feeding behavior of feedlot lambs fed diets containing levels of cassava wastewater.
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de Aguiar Silva Paula, de Carvalho Gleidson Giordano Pinto, Pires Aureliano José Vieira, Santos Stefanie Alvarenga, Dos Santos Pina Douglas, Silva Robério Rodrigues, Rodrigues Carlindo Santos, de Matos Luis Henrique Almeida, Eiras Carlos Emanuel, Novais-Eiras Daiane, Nunes Wilson Souza
Аннотация
In this study, we evaluated the effects of including cassava wastewater in the diet on the feeding behavior of feedlot lambs in 35 male uncastrated Santa Inês × Dorper crossbred lambs at an approximate age of 3 months, with an average live weight of 20.0 ± 3.4 kg. Diets were formulated with hay of cassava shoots (roughage) and a concentrate based on corn and soybean, with a roughage:concentrate ratio of 50:50, plus inclusion of cassava wastewater at the levels of 0, 12, 24, 36, or 48 g/kg of the total diet. Feeding behavior was evaluated between the 46th and 52nd days of the experiment. Increasing cassava wastewater levels in the diet reduced (P < 0.05) the intakes (kg/day) of dry matter and neutral detergent fiber as well as the efficiency of rumination (g/cud and g/h) of dry matter and neutral detergent fiber. The other behavioral parameters were not affected by wastewater inclusion in the diet. Therefore, the inclusion of up to 48 g/kg of cassava wastewater on fresh matter of diets is not recommended for feedlot lambs.