1. Department of Animal and Grassland Sciences Faculty of Agriculture University of Miyazaki Miyazaki Japan
2. Center for Animal Disease Control University of Miyazaki Miyazaki Japan
3. Section of Swine Kagoshima Prefectural Economics Federation of Agricultural Cooperatives Kagoshima Japan
4. Miyazaki Prefectural Economics Federation of Agricultural Cooperatives Miyazaki Japan
5. Production Medicine Center Agricultural Mutual Aid Association in Miyazaki Prefecture Shintomicho Japan
6. Graduate School of Medicine and Veterinary Medicine University of Miyazaki Miyazaki Japan
7. Department of Veterinary Sciences Faculty of Agriculture University of Miyazaki Miyazaki Japan