Feeding behavior of feedlot lambs fed diets containing levels of cassava wastewater
2018
de Aguiar Silva, Paula | de Carvalho, GleidsonGiordano Pinto | Pires, AurelianoJosé Vieira | Santos, StefanieAlvarenga | dos Santos Pina, Douglas | Silva, RobérioRodrigues | Rodrigues, CarlindoSantos | de Matos, LuisHenrique Almeida | Eiras, CarlosEmanuel | Novais-Eiras, Daiane | Nunes, WilsonSouza
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.
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