Effects of energy level in finisher diets and slaughter age of on the performance and carcass yield in broiler chickens - Albuquerque, Ricardo de; Faria, Douglas Emygdio de; Junqueira, Otto Mack; Salvador, D.; Faria Filho, Daniel E.; Rizzo, M. F. (Revista Brasileira de Ciência Avícola = Brazilian Journal of Poultry Science, 2003)