Funding for this research was provided by:
Michigan State University College of Veterinary Medicine Endowed Research Funds
Boehringer-Ingelheim Animal Health USA
Received: 7 May 2020
Accepted: 11 September 2020
First Online: 25 September 2020
Ethics approval and consent to participate
: The protocol was approved in advance by the Michigan State University and complied with its Institutional Animal Care and Use Committee (approval number AUF 11/08-191-00). Horses were owned by another individual and informed written consent was obtained from all horse owners.
: Not applicable.
: The authors declare that they have no competing interests.