Funding for this research was provided by:
swedish norwegian foundation for equine research
Received: 14 August 2018
Accepted: 13 June 2019
First Online: 20 June 2019
Ethics approval and consent to participate
: The study was approved by the Norwegian Animal Research Authority (Forsøksdyrutvalget 2013/61618-1). The study originally published in [CitationRef removed] was approved by the Ethics Committee for Animal Experiments, Uppsala, Sweden (C333/11).
: Not applicable.
: The authors declare that they have no competing interests.