1. Faculty of Veterinary Medicine Department of Fish Diseases and Management Zagazig University Zagazig Sharkia Egypt
2. Faculty of Veterinary Medicine Department of Microbiology Zagazig University Zagazig Sharkia Egypt
3. Faculty of veterinary medicine Department of Pathology Zagazig University Zagazig Sharkia Egypt
4. Biochemistry, Nutritional deficiency Unit Animal Health Research Institute, Agriculture Research Central (ARC), Mansoura branch Mansoura Egypt
5. Department of Clinical Laboratory Sciences Turabah University College Taif University Taif Saudi Arabia