1. Department of Inorganic Analysis, Tama Laboratory, Japan Food Research Laboratories, 6–11–10 Nagayama, Tama, Tokyo 206–0025, Japan
2. Department of Applied Science, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1–7–1 Kyonancho, Musashino, Tokyo 180–8602, Japan
3. Laboratory of Veterinary Surgery, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1–7–1 Kyonancho, Musashino, Tokyo 180–8602, Japan
4. Department of Veterinary Nursing, School of Veterinary Nursing and Technology, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1–7–1 Kyonancho, Musashino, Tokyo 180–8602, Japan
5. Laboratory of Veterinary Public Health, School of Veterinary Medicine, Faculty of Veterinary Science, Nippon Veterinary and Life Science University, 1–7–1 Kyonancho, Musashino, Tokyo 180–8602, Japan
6. Department of Animal Sciences, Teikyo University of Science, 2–2–1 Senjusakuragi, Adachi 120–0045, Japan
7. Laboratory of Structural Bioinformatics, Nippon Veterinary and Life Science University,1–7–1 Kyonancho, Musashino, Tokyo 180–8602, Japan