1. Laboratory of Fish Nutrition, Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada
2. Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Sharkia, Egypt
3. Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Sharkia, Egypt
4. Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Sharkia, Egypt