1. Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
2. College of Veterinary and Animal Sciences, The Islamia University of Bahawalpur Pakistan, Bahawalpur, Pakistan
3. Department of Poultry Production, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
4. Animal and Poultry Production Department, Faculty of Agriculture, Minia University, Miniya, Egypt
5. Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
6. Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, India
7. Animal Production Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt