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Feeding behavior of feedlot lambs fed diets containing levels of cassava wastewater

Author:
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
Source:
Tropical animal health and production 2018 v.50 no.4 pp. 721-726
ISSN:
0049-4747
Subject:
Dorper, body weight, cassava, corn, feeding behavior, feedlots, hay, lambs, males, neutral detergent fiber, roughage, rumination, shoots, soybeans, wastewater
Abstract:
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.
Agid:
5919673