Sedeik , Mahmoud E., Nahed A. El-Shall, Ashraf M. Awad, Hatem S. Abd-Elhamid, Hany F. Ellakany, Abeer F. El-nahas, and Wael K. Elfeil. 2019. “Identifying Intra-Specific Variability in the Virulence of Eimeria Tenella Using SCAR Markers”. International Journal of Poultry Science 18 (4): 151–158. https://doi.org/10.3923/ijps.2019.151.158.