Basiouni G, Najib H, Zaki M, Al-Ankari A. Influence of Extra Supplementation with Arginine and Lysine on Overall Performance, Ovarian Activities and Humoral Immune Response in Local Saudi Hens. Int. J. Poult. Sci. 2006;5(5):441–448. doi:10.3923/ijps.2006.441.448