Affiliation: | 1. Research Institute for Animal Breeding and Nutrition, Meheszet, Godollo, 2100 Hungary.;2. International Livestock Research Institute, P.O. Box 30709, Nairobi, Kenya.;3. International Livestock Research Institute, P.O. Box 30709, Nairobi, Kenya. The School of Biology, Institute of Genetics, The University of Nottingham, University Park, Nottingham NG7 2RD, UK |