1. Clinic for Zoo Animals, Exotic Pets and Wildlife; Vetsuisse Faculty; University of Zurich; Zurich Switzerland
2. Leibniz Institute for Zoo and Wildlife Research (IZW); Berlin Germany
3. Zoo Zurich; Zurich Switzerland
4. Chair of Animal Nutrition and Dietetics; Ludwig-Maximilians-University of Munich; Munich Germany
5. Institute of Agricultural Sciences; ETH Zurich; Zurich Switzerland