Soltan, M.A., R.S. Shewita, and M.I. El-Katcha. 2008. “Effect of Dietary Anise Seeds Supplementation on Growth Performance, Immune Response, Carcass Traits and Some Blood Parameters of Broiler Chickens”. International Journal of Poultry Science 7 (11): 1078–1088. https://doi.org/10.3923/ijps.2008.1078.1088.