1. Affiliations:
International Livestock Research Institute, PO BOX 30709-00100, Nairobi, Kenya
2. Discipline of Genetics, School of Life Sciences, University of Kwazulu-Natal, Durban South Africa
3. Department of Animal Science, School of Agriculture, University of Ghana, Legon, Accra, Ghana
4. Department of Agricultural Production, School of Agricultural Sciences, College of Agricultural & Environmental Sciences, Makerere University, Box 7062, Kampala, Uganda
5. University of Hohenheim, Institute of Agricultural Science in the Tropics, Germany
6. Research & Development Department, Aviagen Ltd, 11 Lochend Rd, Newbridge EH28 8SZ, Scotland, UK