University of Copenhagen, affiliation not provided to SSRN, University of Liverpool, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Toulouse, affiliation not provided to SSRN, University of Copenhagen, affiliation not provided to SSRN, Willows Veterinary Centre and Referral Service Ltd, Iowa State University, University of Copenhagen, affiliation not provided to SSRN, affiliation not provided to SSRN, National Veterinary Institute, University of Nottingham, University of Guelph and affiliation not provided to SSRN