1. Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
2. Applied and Analytical Palaeontology, Institute of Geosciences Johannes Gutenberg University Mainz Germany
3. Department of Natural Environmental Studies, Graduate School of 12 Frontier Sciences The University of Tokyo Chiba Japan
4. Animal Nutrition Group, Department of Animal Sciences Wageningen University AH Wageningen The Netherlands
5. Department of Animal Sciences University of Göttingen Göttingen Germany
6. ETH Zurich Institute of Agricultural Sciences Zurich Switzerland
7. Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty University of Zurich Zurich Switzerland