Junichi Takahashi, scientist in the field of animal nutrition and environmental science, graduated from Obihiro University of Agriculture and Veterinary Medicine, Japan in 1973, and given master’s degree in 1975 and PhD in 1983 from Kyushu University. President, Hokkaido Society of Animal Science for 2008-2009 and internationally as Expert (Project leader) of Japan International Cooperation Agency, Visiting Professor, National University of Asuncion, Paraguay for 1986-1988, Visiting Scholar, The University of Alberta, Canada for 1989-1990, Visiting Professor, The University of Queensland, Australia for 1995-1996. He has founded the International Conference on Greenhouse Gases and Animal Agriculture, GGAA and has been worked as a President for 2001-Present. Currently, he is professor emeritus, Obihiro University of Agriculture and Veterinary Medicine. He was given the title of National High-End Chair professor from Chinese Government. He worked as a Visiting Professor, College of Environmental Science and Engineering, Tongji University, Shanghai and Distinguished Visiting Professor, IPB, Indonesia and Saitama Institute of Technology, Japan and leaded the international projects on Japanese/Australia Science and Technology (Reference 95AGF05-19), Japanese/Czech Science and Technology (Reference NJ-110CZ), and The joint research projects with The University of Sydney Australia, IPB Indonesia, Nutrivet. s.r.o. Czech, Tongji University and Unilever China. Internationally, he has worked as an editorial board member of some International Journals and External Assessor and Examiner of UPM Malaysia, ETH Switzerland, University of Alberta Canada, Alberta Livestock Meat Association (ALMA) Canada, Japan Atomic Energy Commission “The former Soviet Union nuclear developer support project”. He has published more than 140 refereed Journal articles, 40 Books, Scientific Reviews and 43 Patents.