Ghaffari, M. et al. 2007. Effects of Different Levels of Metabolizable Energy and Formulation of Diet Based on Digestible and Total Amino Acid Requirements on Performance of Male Broiler. International Journal of Poultry Science. 6, 4 (Mar. 2007), 276–279. DOI:https://doi.org/10.3923/ijps.2007.276.279.