A. Tahmasbi, E. Kashefi, G. Moghadam, A. Taghizadeh, and H. Ghasemi, “Influence of β-Adrenergic Agonist (Metaproterenol) and Lysine on Growth, Carcass Quality in Broiler Chickens”, Int. J. Poult. Sci., vol. 5, no. 11, pp. 1082–1086, Oct. 2006, doi: 10.3923/ijps.2006.1082.1086.