Doaa Mahmoud Kirat, Professor and Head of Physiology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt. Bachelor of Science in Veterinary Medical Sciences, Faculty Veterinary Medicine, Zagazig University, Egypt, 1996. Master of Science in Veterinary Medical Sciences, Faculty of Veterinary Medicine, Zagazig University, Egypt, 2000. Doctor of Philosophy in Veterinary Medical Sciences, Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan, 2006. Japan Society for the Promotion of Science-postdoctoral fellow, School Veterinary Medicine, Ebetsu, Hokkaido, Japan, 2007-2009.