^○Takita Keigo¹, Watanabe Genya², Motoyama Michiyo², Nakajima Ikuyo², Tajima Atsushi¹, Sasaki Keisuke² (1.Univ. of Tsukuba, 2.National Agriculture and Food Research Organization)

^○Asahina Yui¹, Hagi Tatsuro², Kobayashi Miho², Narita Takumi², Tajima Atsushi¹, Nomura Masaru² (1.Graduate school of Life and Environmental Sciences, Univ. of Tsukuba, 2.Institute of Livestock and Grassland Science, NARO)