1. Research-Institute for Farm Animal Biology (FBN), Institute of Muscle Biology and Growth, Dummersdorf, Germany.
2. Staatliches Museum für Naturkunde Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany.
3. Department of Fisheries, Wildlife, and Conservation Sciences, Oregon State University, 104 Nash Hall, Corvallis, Oregon 97331; Email: . Send reprint requests to this address.