1. Institute of Livestock and Grassland Science; National Agriculture and Food; Research Organization (NARO); Tsukuba Ibaraki Japan
2. Komatsu Laboratory of Computational Biology for Domestic Animals; Ryugasaki Ibaraki Japan
3. Ibaraki Prefecture Livestock Research Centre; Hitachi-Ohmiya Ibaraki Japan
4. Nagano Animal Industry Experiment Station; Shiojiri Nagano Japan
5. Ibaraki Prefecture Agricultural College; Tsuchiura Ibaraki Japan
6. Ibaraki Prefecture Ken-nan Livestock Office of Agriculture and Forestry; Tsuchiura Ibaraki Japan