1. Department of Applied Veterinary Science, United Graduate School of Veterinary Sciences; Gifu University; Gifu Gifu 501-1193 Japan
2. Hyogo Prefectural Homeland for the Oriental White Storks; Toyooka Hyogo 668-0814 Japan
3. Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences; Gifu University; Gifu Gifu 501-1193 Japan