[1] Industrial Research Institute of Shizuoka Prefecture Fuji Technical Support Center, 2590-1, Obuchi, Shizuoka, Fuji,417-0801, Japan
[2] Nippon Institute of Technology, 4-1, Gakuendai, Miyashiro-machi, Minamisaitama-gun, Saitama,345-8501, Japan
[3] Seibu Livestock Disease Diagnostic Center of Shizuoka Prefecture, 392, Nakagori-chou, Chuo-ku, Shizuoka, Hamamatsu,431-3111, Japan