1. Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 11221, Egypt
2. Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Tripoli University, Tripoli, Libya
3. Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 11221, Egypt
4. Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 11221, Egypt
5. Department of Surgery and Anesthesiology, Faculty of Veterinary Medicine, Cairo University, Giza, 11221, Egypt
6. Department of Hydrobiology, Veterinary Division, National Research Center, Dokki, Giza, Egypt