El-Safty, S.A., U.M. Ali, and M.M. Fathi. “Immunological Parameters and Laying Performance of Naked Neck and Normally Feathered Genotypes of Chicken under Winter Conditions of Egypt”. International Journal of Poultry Science 5, no. 8 (July 15, 2006): 780–785. Accessed September 21, 2025. https://ijpsjournal.org/index.php/ijps/article/view/622.