Kgwatalala , P. M.; Segokgo, P.; Simon, E. Comparative Growth Performance of Cross-Bred (50% Orpington: 25% Australorp: 25% Tswana) and Pure-Bred Tswana Chickens under an Intensive Management System. Int. J. Poult. Sci. 2015, 14 (2), 63–66. https://doi.org/10.3923/ijps.2015.63.66.