1. School of Animal and Range Sciences, College of Agricultural and Environment Science, Haramaya University, P. O. Box 138, Dire Dawa, Ethiopia
2. Department of Animal Science, College of Agricultural Science, Arba Minch University, P. O. Box 21, Arba Minch, Ethiopia
3. Director of Livestock programs, Ethiopian Agricultural Transformation Agency, Addis Ababa, Ethiopia
4. Center for International Forestry Research (CIFOR), P. O. Box 5689, Addis Ababa, Ethiopia
5. School of Plant Science, College of Agriculture and Environment Science, Haramaya University, P. O. Box 138, Dire Dawa, Ethiopia