Características de carcaça de cordeiros Santa Inês em função da substituição de farelo de milho por farelo de palma.

Abstract

The objective of this study was to evaluate the effect of the levels of substitution of corn crumb for spineless cactus crumb in the diet on the carcass characteristics body constituents from Santa Inês lambs finished at feedlot. This study was carried out at Pendência Experimental Station belonging to State Company of Agricultural Research of Paraíba (EMEPA-PB). Forty male Santa Inês lambs were used, feedlot. The treatments were randomly assigned to the animals according to a completely randomized design, with four treatments, that consisted of growing levels of substitution of corn crumb for spineless cactus crumb: 0, 33, 66 and 100% of substitution and ten replications (lambs). The animals were slaughtered, then, they were evaluated the slaughter body weight, empty body weight, hot carcass weight, cold carcass weight, non components of carcass (NCC), hot carcass yield, cold carcass yield, biological yield, revenue of non components of carcass, revenues of non components groceries of carcass, relative weight and relative value of the commercial cuts and viscera and organs yield. The averages were submitted it to variance and regression analyzes to 5% of probability. There wasn t effect of treatment (P>0.05) for biological yield, revenue of the non components of carcass, relative weight and relative value of the first and second cuts and on relative weight of viscera and organs. The substitution of the corn crumb by spineless cactus crumb, on the ration of Santa Inês lambs feedlot, doesn't interfere in the biological yield, relative weight and relative value of first and second category cuts and in the relative weight of viscera and other organs.