1. Department of Animal Sciences; University of Göttingen; Göttingen Germany
2. Leibniz Institute for Zoo and Wildlife Research (IZW); Berlin Germany
3. Sustainable Agriculture and Food Systems Research Division; Centre for Dairy Research; School of Agriculture, Policy and Development; University of Reading; Reading UK
4. Clinic for Zoo Animals, Exotic Pets and Wildlife; Vetsuisse Faculty; University of Zurich; Zurich Switzerland