1. Department of Animal Sciences, Teikyo University of Science, Uenohara, Yamanashi, Japan
2. Wildlife Research Center, Kyoto University, Kyoto, Kyoto, Japan
3. Wildlife Genome Collaborative Research Group, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
4. Department of Animal Science and Biotechnology, Azabu University, Sagamihara, Kanagawa, Japan
5. Department of Physiology, Jichi Medical University, Shimotsuke, Tochigi, Japan