1. Department of Animal Environment and Health, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Skara, Sweden
2. The Rural Economy and Agricultural Society Sjuhärad, Rådde Gård, Länghem, Sweden
3. Department of Animal Science, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, Brazil
4. LKS mbH, Lichtenwalde, Germany
5. Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegårdsvej, Frederiksberg C, Denmark