Makram, A.; Galal, A.; Fathi, M.; El-Attar, A. Carcass Characteristics and Immunocompetence Parameters of Four Commercial Broiler Strain Chickens under Summer Season of Egypt. Int. J. Poult. Sci. 2010, 9 (2), 171–176. https://doi.org/10.3923/ijps.2010.171.176.