Moussa I. M.1, Omnia M. E.2, Amin A. S.2, Ashgan, M. H.3 and Selim S. A.4
1Center of Excellence in Biotechnology Research, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia.
2Biotechnology Research Unit, Animal Reproduction Research Institute, Egypt.
3College of Applied Studies and Community Service, King Saud University, Saudi Arabia.
4Microbiology Department, Faculty of Veterinary Medicine, Cairo University, Egypt.
