1. The United Graduate School of Veterinary Sciences, Gifu University
2. Laboratory of Theriogenology, Obihiro University of Agriculture and Veterinary Medicine
3. Institute of Agriculture and Animal Science, Tribhuvan Universit
4. National Livestock Breeding Center, Niikappu Station
5. Laboratory of Anatomy, Obihiro University of Agriculture and Veterinary Medicine
6. Graduate School of Animal and Food Hygiene, Obihiro University of Agriculture and Veterinary Medicine