1. Fish Processing and Biotechnology Department Faculty of Aquatic and Fisheries Sciences Kafrelsheikh University Kafrelsheikh Egypt
2. Department of Aquaculture Faculty of Aquatic and Fisheries Sciences Kafrelsheikh University Kafrelsheikh Egypt
3. Department of Clinical pathology Faculty of Veterinary Medicine Kafrelsheikh University Kafrelsheikh Egypt
4. Department of Zoology College of Science King Saud University Riyadh Saudi Arabia
5. Department of Animal Production Faculty of Agriculture Kafrelsheikh University Kafrelsheikh Egypt