Abstract
1 Environmental Biotechnology National Core Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea
2 Department of Life Science, Chung-Ang University, Seoul 156-756, Republic of Korea
3 Department of Biology, Sunchon National University, Sunchon 540-742, Republic of Korea
4 Department of Animal Science & Technology, Sunchon National University, Sunchon 540-742, Republic of Korea