Zootechnic and economic indicators of termination in feedlot of different genetic groups of lambs

The objective of this work was to evaluate the performance, carcass traits and economic indicators Santa Inês lambs their crossings finished in feedlot. Thirty whole (10 Inês, 10 ½ Dorper + ¾ ¼ Inês) were used, with 115 days age initial live weight 20.07 kg. kept for 60 receiving sorghum silage concentrate, after which they slaughtered. showed higher dry matter intake water intake, greater daily gain body score relation lambs. carcasses better conformation, finishing marbling. gross profit margin positive values all genetic groups, covering effective operating cost. crossbred had a compared cost diet represented on average 61.35% price paid per kilo sheep meat. In meat production system, group influences zootechnical feedlot