Acknowledgments
We thank Shinya Ohshimoda and Yusuke Okamoto of the Faculty
of Applied Life Science, Nippon Veterinary and Life Science
University (Musashino, Japan) for technical assistance and Dr.
Masahiro Osada of Fuji Animal Farm, Nippon Veterinary and Life
Science University (Yamanashi, Japan) for provision of UBM. The
study was funded by the Ryoushokukenkyukai.