1. Department of Applied Biological Chemistry (T.I., T.S.), Faculty of Science, Shizuoka University, Shizuoka 422-8529, Japan
2. Department of Agricultural Science (N.Y.), Gifu University, Gifu 501-1193, Japan
3. Faculty of Agriculture, and Department of Biology (T.T.), Faculty of Science, Shizuoka University, Shizuoka 422-8529, Japan
4. Graduate School of Bioagricultural Sciences (H.O., T.Y., A.T.), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
5. Laboratory of Animal Genetics and Breeding (N.K.), Azabu University, Fuchinobe, Sagamihara 229-8501, Japan