Abstract
1 Department of Environmental Education, Sunchon National University, Sunchon 540-742, Republic of Korea
2 Department of Animal Science & Technology, Sunchon National University, Sunchon 540-742, Republic of Korea
3 Department of Life Science, Chung-Ang University, Seoul 156-756, Republic of Korea
4 Environmental Biotechnology National Core Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea
5 Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-701, Republic of Korea