Vargas Junior, Fernando MirandaMartins, Charles FerreiraPinto, Guilherme dos SantosFerreira, Marcos BarbosaRicardo, Hélio de AlmeidaLeão, André GustavoFernandes, Alexandre Rodrigo MendesTeixeira, Alfredo2014-10-132014-10-132014Vargas Junior, Fernando Miranda de; Martins, Charles Ferreira; Pinto, Guilherme dos Santos; Ferreira, Marcos Barbosa; Ricardo, Hélio de Almeida; Leão, André Gustavo Fernandes, Alexandre Rodrigo Mendes; Teixeira, A. (2014). The effect of sex and genotype on growth performance, feed efficiency, and carcass traits of local sheep group Pantaneiro and Texel or Santa Inês crossbred finished on feedlot. Tropical Animal Health and Production. ISSN 0049-4747. 46:5, p. 869-8750049-4747http://hdl.handle.net/10198/10808This study aimed to assess and compare the growth performance, feed efficiency, and carcass traits of Pantaneiro sheep and their Texel and Santa Inês crossbreds. Ninety-six lambs, fifty-one males, and forty-five females, with a mean weaning weight of 15.21±1.25 kg and 78±13 days of age, were slaughtered at a 32-kg body weight. The results showed better production efficiency from males compared with females. Texel-crossed lambs had a better growth performance than the other genotypes. The Texel×Pantaneiro lambs were more efficient with a better feedlot performance, higher ribeye muscle area, and better carcass characteristics with an adequate amount of fat cover. Pantaneiro lambs and their crosses with meat breeds could be useful in meat production systems under Savanna environmental conditions.engAnimal performanceBreed crossesCarcassPantaneirojournal article10.1007/s11250-014-0579-4