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
Federal University of Triângulo Mineiro, Iturama, Minas Gerais, Brazil.
Federal University of Bahia, Salvador, Bahia, 40170-100, Brazil.
Trop Anim Health Prod. 2018 Apr;50(4):721-726. doi: 10.1007/s11250-017-1487-1. Epub 2017 Dec 19.
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.
在本研究中，我们评估了在日粮中添加木薯废水对35只约3月龄、平均体重20.0±3.4千克的未阉割雄性圣伊内斯×杜泊杂交育肥羔羊采食行为的影响。日粮由木薯嫩茎叶干草（粗饲料）和以玉米及大豆为基础的精料配制而成，粗饲料与精料比例为50:50，另在日粮中分别添加0、12、24、36或48克/千克木薯废水。在试验的第46天至第52天评估采食行为。日粮中木薯废水添加水平的增加降低了（P<0.05）干物质和中性洗涤纤维的摄入量（千克/天）以及干物质和中性洗涤纤维的反刍效率（克/反刍周期和克/小时）。日粮中添加废水对其他行为参数没有影响。因此，不建议在育肥羔羊日粮鲜物质中添加高达48克/千克的木薯废水。
