^○Izumi Keiichiro¹, Takagi Ayano¹, Osawa Takefumi², Yamazaki Takeshi³, Hagiya Koichi¹ (1.Obihiro Univ. of Agriculture and Veterinary Medicine, 2.National Livestock Breeding Center, 3.Hokkaido Agricultural Research Center, NARO)

^○Miyake Takeshi (GS of Agriculture, Kyoto Univserisy)

^○kanisawa syota¹, yamada takahisa², taniguchi yukio³, katuta tomohiro⁴, iwaisaki hiroaki⁵ (1.Niigata Univ. Faculty of Agriculture, 2.Niigata Univ., 3.Kyoto Univ., 4.Wagyu Registry Association, 5.Center for Toki and Ecological restoration Institute for Research Promotion,Niigata Univ.)