V. and Ravindran, V. (2001). Proceedings of the Australian Poultry Science Symposium, Ed. ... Noy, Y., Geyra, A. and Skan, D. (2001). Poultry Science, 80: 912-919.
20. Y. Singh, D.V. Thomas, T.W. Webster, G. Ravindran and V. ... In African villages, for example, such free-range production has been estimated to produce over 70 % of the poultry products and 20 % of the animal protein eaten (Aboe et al., 2006a).