^○Osawa Ryo¹, yoji Fukui², Yuji Sakakibaara³, Masayuki Kachi⁴, Chieko Iwamoto⁵, Shigeki Morikawa⁶, Yuki Akiyoshi⁷, Keiko Nishimura⁸, Itoko Nonaka⁹, Naozumi Tagusari¹⁰ (1.Saitama Prefectural Agricultural Technology Research Center, 2.Chiba Prefectural Nanbu Livestock Hygiene Service Center, 3.Pig Farming Research Office, Ibaraki Prefectural Livestock Research Center, 4.Gifu Prefectural Livestock Research Institute, 5.Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, 6.Tokushima Agriculture, Forestry, and Fisheries Technology Support Center, 7.Kumamoto Prefectural Agriculture Research Center, Animal Husbandry Research Institute, 8.Miyazaki Livestock Research Institute, 9.Institute of Livestock and Grassland Science, NARO, 10.Hokkaido Agricultural Research Center, NARO)

^○Miyake Ayumi¹, Sato Sei², Ito Takahiro³, Miyakoshi Yuichi⁴, Inui Kiyoto⁵, Shinkai Takumi⁶, Ito Fumiaki⁷, Aoki Mari⁷, Kiku Yoshio⁸, Nonaka Itoko⁶, Takusari Naozumi⁷ (1.Okayama Livestock Research Institute, 2.Aichi Agricultural Testing Station, 3.Iwate Miyako Agricultural Dissemination Center, 4.Niigata Livestock Research Center, 5.Mie Livestock Research Institute, 6.Institute of Livestock and Grassland Science, NARO, 7.Hokkaido Agricultural Research Center, NARO, 8.National Institute of Animal Health, NARO)