^○iwamoto Eiji¹, masaki Tatsunori^1,4, ikuta Kentarou², satou Shigeru³, mizuguchi Hitoshi³, kushibiki Shirou^4,5 (1.Hyogo Prefectural Technology Center of Agriculture, Forestry, and Fisheries, 2.Hyogo Prefectural Awaji Agricultural Institute, 3.Iwate Univ., 4.Tsukuba Univ., 5.NARO Institute of Livestock and Grassland Science)

^○Kamiya Mitsuru, Yamada Tomoya, Higuchi Mikito (NARO CARC)