About the Authors

Ida C. N. Thøfner

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Validation, Visualization, Writing – original draft, Writing – review & editing

icnt@sund.ku.dk

Affiliation Department of Veterinary & Animal Sciences, University of Copenhagen, Copenhagen, Denmark

Jan Dahl

Roles Conceptualization, Formal analysis, Investigation, Methodology, Resources, Software, Validation, Visualization, Writing – review & editing

Affiliation Danish Agriculture & Food Council, Copenhagen, Denmark

Jens Peter Christensen

Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Writing – review & editing

Affiliation Department of Veterinary & Animal Sciences, University of Copenhagen, Copenhagen, Denmark

Competing Interests

One author (JD) is employed at The Danish Agriculture & Food Council, which represents the farming and food industries of Denmark including companies, trade and farmers’ associations resulting in a potential or perceived conflict of interest. However, the two independent academic partners (ICNT and JPC, University of Copenhagen) explicit endorses that the work is at “arms length” from commercial interest. The first and senior author have led the process and are satisfied that the results are independent. This does not alter our adherence to PLOS ONE policies on sharing data and materials.