Education
Digital Array Gas-cell correlation radiometer, Techniche University Berlin, 1974.
educator agricultural engineer
Digital Array Gas-cell correlation radiometer, Techniche University Berlin, 1974.
Professor Georg August University Göttingen, Germany, since 1982. Deputy director general, research International Livestock Research Center, Addis Abeba, Ethiopia, 1985—1990. Professor Technische University Berlin, 1990—1994, Humboldt University zu Berlin, 1994—2009, senior professor, since 2009.
President Council Tropical and Subtropical Agricultural Research, Bonn, Germany, 1992—1998. Member board trustees, ISNAR Consultative Group on International Agricultural Research, Den Haag, Netherlands, 1992—1998, chairman board trustees, World Fish Center, Penang, Malaysia, 1996—2003, chair committee board chairs, Consultative Group of International Agricultural Research, Washington, 2000—2002.
Member of Gesellscahft für Tierzuchtwissenschaften, Berliner Wissenschaftliche Gesellschaft.