Sugar cane bagasse in feedlot / Bagaço de canade-açúcar na engorda de bovinos confinados

ABSTRACT

Twenty four years old steers with 3/4 European and 1/4 zebu blood were allocated to three different rations, in order to test the sugar cane bagasse as main source of a diet in a feeding trial, The steers weighted 298kg in average and the trial was 112 days long. The three diets had the following composition A sugar cane bagasse, dried grnd 50%,corn grain grnd 24% and cotton seeds solv extd grnd (4-11-744) 26%; B Sugar cane bagasse, dried grnd 30%, filter cake 20%, corri grain 28%and cotton seeds solv extd grnd 22%; C Sugarcane bagasse, dried grnd 30%, Hyparrhenia rufa, aerial part, dehy 20%, corn grain grnd 27% and cotton seeds solv extd grnd 23%. After 112 days the steer had the following averaqe daily gain per treatment A 0.664, B 0.781 and, C 0.828kg. There were not statistical differences among treatments. The average daily comsumption of dry matter was respectiveIy; A 7.898, B 9.992 and C 10.091 kg.

RESUMO

Vinte e quatro garrotes, com idade média de 23 meses, mestiços 3/4 europeu 1/4 zebu e com peso médio inicial de 298kg, foram confinados por um período de 112 dias, recebendo as seguintes dietas A bagaço de cana seco e moído 50%, quirera de milho 24% e farelo de algodão 26%; 8 bagaço 30%, torta de filtro 20%, quirera de milho 28% e farelo de algodão 22%; C bagaço 30%, feno Jaraguá 20%, quirera de milho 27% e farelo de algodão 23%. Os garrotes apresentaram os seguintes ganhos/dia/cabeça A 0,664; 8 0,781 e C 0,828kg. A análise estatística não evidenciou diferença significativa entre os tratamentos. O consumo médio de matéria seca/dia/cabeça foi A 7,898; 89,992 e C 10,091kg.