*Kasumi Meguro¹, Hitomi Satou¹, Kai Tomizawa¹, Gakuto Nakamura², Keniti Izumi², Rika Fukumori¹, Shin Oikawa¹, Kyouko Tisato¹ (1. Rakuno Gakuen Univ., 2. Rakuno Gakuen Univ. Agri)

*Kai Tomizawa¹, Hitomi Sato¹, Kasumi Meguro¹, Gakuto Nakamura², Keniti Izumi², Rika Fukumori¹, Kyouko Tisato¹, Sin Oikawa¹ (1. Rakunogakuen Univ. vet, 2. Rakunogakuen Univ. agri)

*Hanon OHBAN¹, Megumi ITOH¹, Tadashi KURAMOTO², Wataru MIKI², Eiji TAKAHASHI¹ (1. Obihiro Univ., 2. Obihiro Univ Veterinary Medical Center.)

*Yadanar Chit Mya¹, Nobuyuki KUSABA¹, Tomas Javier Acosta¹, Takehiro NISHIDA¹, Naoki FUKUMA¹, Masaaki HANADA¹ (1. Obihiro University of Agriculture and Veterinary Medicine)

*Yuko Shingu¹, Koichiro Ueda², Takuji Wakatsuki¹, Yoshitaka Matsui¹, Shumpei Sakurai², Haruto Hosoji¹, Daiji Konno¹ (1. Dairy Research Ceter, 2. Hokkaido Univ.)

*Fumiaki Itoh¹, Takeshi Yamazaki¹, Naozumi Takusari¹ (1. Hokkaido Agricultural Research Center, NARO )

*Momoko Yachida¹, Megumi Itoh¹, Keita Tokimitsu¹, Yasuhiro Morita¹ (1. Obihiro University of Agriculture and Veterirary Medicine)

*Jun-ichi SHIRAISHI^1,2, Takahiro KAWASE³, Mina SAITO¹, Manaka AKATSUKA¹, Kei SHIMIDZU², Yujiro HAGITA⁴, Masahiro OSADA^1,2,4, Yoshiyuki OHTA^1,2 (1. Nippon veterinary life science Univ. Faculty of Applied Life Science, 2. Nippon veterinary life science Univ. Graduate School of Veterinary Medicine and Life Science, 3. Kyoto Institute of Nutrition & Pathology, 4. Nippon veterinary life science Univ. Fuji Animal Research Farm)