Awobajo, O.K., O. Grace, A.A. Mako, A.O. Igbosanun, and R.O. Ettu. 2009. “Mortality Rate at the Brooding Stage of Various Broiler Breeds Reared in Sub Sahara Region of West Africa”. International Journal of Poultry Science 8 (8): 792–797. https://doi.org/10.3923/ijps.2009.792.797.