1. Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
2. Faculty of Biology-Oriented Science and Technology, Kindai University, Kinokawa, Wakayama, Japan
3. Division of Animal Genetics, Laboratory Animal Research Center, Institute of Medical Science, the University of Tokyo, Minato-ku, Tokyo, Japan
4. Institute of Experimental Animal Sciences, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
5. Faculty of Agriculture, Niigata University, Niigata, Japan
6. Graduate School of Biostudies, Kyoto University, Kyoto, Japan
7. Department of Gastroenterology, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
8. Laboratory for Intestinal Ecosystem, Riken Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
9. Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
10. Institute of Food Research, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan