1. Laboratory of Theriogenology, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University
2. Department of Clinical Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University
3. NOSAI Hidaka, Clinic Center, Mitsuishi
4. Shadai Stallion Station
5. Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University
6. Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology