1. Animal Resources Development Division, Animal Sciences Group, Wageningen University and Research Centre, P.O. Box 65, NL-8200 AB Lelystad, The Netherlands
2. Department of Animal Health and Welfare, Danish Institute of Agricultural Sciences, Tjele, Denmark
3. Animal Breeding and Genetics Group, Wageningen University, Wageningen, The Netherlands
4. Ethics Institute, Utrecht University, Utrecht, The Netherlands
5. Environmental Science, Bayer CropScience AG, Monheim, Germany
6. Department of Microbial Food Safety, Danish Institute for Food and Veterinary Research, Copenhagen, Denmark
7. Department of Biology, University of Antwerp, Antwerp, Belgium
8. Danish Pest Infestation Laboratory - Research Center Sorgenfri, Danish Institute of Agricultural Sciences, Kongens Lyngby, Denmark
9. Sustainable Ecosystems, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Canberra, Australia
10. Institute for Nematology and Vertebrate Research, Federal Biological Research Centre for Agriculture and Forestry, Minister, Germany
11. Applied Research Division, Animal Sciences Group, Wageningen University and Research Centre, Lelystad, The Netherlands