1. Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan, Transfusion Medicine, Hokkaido University, Sapporo 060-8648, Japan, and Research and Development for Biology, Indonesian Institute of Sciences, Bogor 16122, Indonesia