1. Laboratory of Integrative Physiology in Veterinary Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
2. Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan
3. Laboratory of Veterinary Pharmacology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 598-8531, Japan