Zahraddeen, D.; Butswat, I.; Kalla, D.; Sir, S.; Bukar, M. Effect of Frequency of Ejaculation on Semen Characteristics in Two Breeds of Turkeys (Meleagris Gallopavo) Raised in a Tropical Environment. Int. J. Poult. Sci. 2005, 4 (4), 217–221. https://doi.org/10.3923/ijps.2005.217.221.