1. Department of Animal Production and Welfare, Mekelle University, Mekelle 231, Ethiopia
2. Center for Food Science and Nutrition, Addis Ababa University, Addis Ababa 1176, Ethiopia
3. LiveGene, International Livestock Research Institute (ILRI), Addis Ababa 5689, Ethiopia
4. Research Methods Group, International Livestock Research Institute (ILRI), Nairobi 30709, Kenya
5. Center for Tropical Livestock Genetics and Health (CTLGH), The Roslin Institute, Edinburgh EH25 9RG, UK
6. School of Life Sciences, University of Nottingham, Nottingham NG72UH, UK
7. Research Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany