*Rei Ichikawa¹, Seiya Higashi¹, Sho Nakamura¹, Satoshi Ohkura¹, Koji Kimura², Shuichi Matsuyama¹ (1. Graduate School of Bioagricultural Sciences, Nagoya Univ. , 2. Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan)

*Koji Sugiura¹, Edure Taichi¹, Matsuno Yuta¹, Fujii Wataru¹, Naito Kunihiko¹ (1. University of Tokyo)

*Ayaka Ishihara¹, Kanako Morohaku¹, Ikuo Tomioka¹ (1. Shinshu Univ)

*Kayo Yamaoka¹, Takeshi Koyama¹, Hirotaka Kasuya¹, Hiroki Mitsuishi¹ (1. Hokkaido Research Organization・agricultural research department animal research center)

*Jin Kobayashi¹, Motoko Morimoto¹, Masaki Yokoo³, Kazuhiro Kawamura² (1. Miyagi University, 2. Juntendo University, 3. Akita prefectural University)

*Ryotaro Miura¹, Yujiro Hagita², Tsuyoshi Tajima¹, Tadaharu Ajito¹, Seizo Hamano³, Komei Shirasuna⁴ (1. Nippon Veterinary and life Science Univ., 2. Nippon Veterinary and life Science Univ. Fuji Animal Farm, 3. Artificial Insemination of Animal in Japan, 4. Tokyo University of Agriculture)

*Tomoaki Kubo¹, Yuko Shingu¹, Tomoki Tanabe¹, Takuji Wakatsuki¹, Haruto Hosoji¹, Keisuke Koyama² (1. Hokkaido Research Organization, 2. Osaka Metropolitan Univ.)

*Koyama Takeshi¹, Hirayama Hiroki² (1. Hokkaido Research Organization, Animal Research Center, 2. Tokyo University of Agriculture)

*Hisashi Nabenishi¹, Norihiko nozaki², Shigeharu Ochi², Takafumi Sasaki², Atusi Yamazaki¹ (1. School of Veterinary Medicine, Kitasato University, 2. Research & Development Center for Dairy Farming)

*Kei Horihata¹, Yuji Kaji¹, Naoki Takenouchi¹, Naoki Fukuju¹, Takuo Hojo¹ (1. Kyushu-Okinawa Agricultural Research Center, NARO)

*kenji wada¹, Suguru Isogaya¹, Aoi Masumoto¹, Takuma Goto¹, Sakura Nakamura¹, Akihiro Hata¹, Yui Kawata¹, Atsuko Kageyama¹, Jumpei Terakawa^1,2, Junya Ito^1,2, Naomi Kashiwazaki^1,2 (1. Azabu Univ., 2. azabu Univ.)

*Toru Egi¹, Masaaki HANADA¹, Yuji TOKURA¹, Tomas Javier ACOSTA¹ (1. Obihiro Univ.)