Iyayi, E.A., et al. “Effect of Three Sources of Fibre and Period of Feeding on the Performance, Carcase Measures, Organs Relative Weight and Meat Quality in Broilers”. International Journal of Poultry Science, vol. 4, no. 9, Aug. 2005, pp. 695–700, https://doi.org/10.3923/ijps.2005.695.700.