Funding for this research was provided by:
Natural Sciences and Engineering Research Council of Canada
Received: 29 November 2018
Accepted: 1 October 2019
First Online: 28 October 2019
Ethics approval and consent to participate
: The study was approved by both the Veterinary Sciences Animal Care Committee (protocol AC16–0246) and Calgary Zoo Welfare, Ethics and Research Committee (protocol 1039994), implying consent to use previously taken serum samples from animals at UofC animal resource centres or the Calgary Zoo, respectively.
: Not applicable.
: The authors declare that they have no competing interests.