1. Department of Clinical Research and Veterinary Public Health, Division of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
2. Department of Livestock Science, Research Institute of Organic Agriculture (FiBL), Frick, Switzerland
3. Department of Animal Science, Aarhus University, Aarhus, Denmark
4. Freie Universität Berlin, Institute of Pharmacy, Berlin, Germany