1. Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University
2. Laboratory of Theriogenology, Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine
3. Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine
4. Field Center of Animal Science and Agriculture, Obihiro University of Agriculture and Veterinary Medicine