El-Deek, A.A., and M.A. Al-Harthi. “Post Molt Performance Parameters of Broiler Breeder Hens Associated With Molt Induced by Feed Restriction, High Dietary Zinc and Fasting”. International Journal of Poultry Science, vol. 3, no. 7, June 2004, pp. 456–462, https://doi.org/10.3923/ijps.2004.456.462.