1. Artificial Insemination and Embryo Transfer Department, Animal Reproduction Research Institute, Agriculture Research Center (ARC), Giza, Egypt
2. Immunity Department, Animal Reproduction Research Institute, Agriculture Research Center (ARC), Giza, Egypt
3. Agricultural Microbiology Department, Faculty of Agriculture, Cairo University, Giza, Egypt
4. Biotechnology Department, Faculty of Graduate Studies and Environmental Researches, Ain Shams University, Cairo, Egypt