^○Tomohisa Tomaru¹, Keito Yunokawa¹, Yoshie Morooka², Ai Inukai², Hitomi Nishimura³, Junko Nakajima³, Kouji Higuchi⁴ (1.Gunma Prefectural Livestock Experiment Station, 2.Chiba Prefectural Livestock Research Center, 3.Nagano Animal Industry Experiment Station, 4.National Agriculture and Food Research Organization)

^○Morooka Yoshie¹, Inukai Ai¹, Tomaru Tomohisa², Yunokawa Keito², Nishimura Hitomi³, Nakajima Junko³, Higuchi Kouji⁴ (1.Chiba Prefectural Livestock Research Center, 2.Gunma Prefectural Livestock Experiment Station, 3.Nagano Animal Industry Experiment Station, 4.National Agriculture and Food Research Organization)

^○Itoh Fumiaki, Yamazaki Takeshi, Takusari Naozumi (Hokkaido Agricultural Research Centre, NARO)