1. Department of Pathology, Veterinary Medicine, Cairo University, Giza, Egypt
2. Department of Poultry Diseases, Veterinary Medicine, Cairo University, Giza, Egypt
3. Department of Toxicology and Forensic Medicine, Veterinary Medicine, Cairo University, Egypt
4. Department of Biochemistry and Molecular Biology, Veterinary Medicine, Cairo University, Giza, Egypt
5. Department of Nanotechnology, Agricultural Research Center, Giza, Egypt