Funding for this research was provided by:
The Horse Trust (G5018)
Received: 4 May 2020
Accepted: 2 December 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: Synovial fluid was collected as a by-product of the agricultural industry. Specifically, the Animal (Scientific procedures) Act 1986, Schedule 2, does not define collection from these sources as scientific procedures. Ethical approval was therefore not required.
: Not applicable.
: The authors declare no competing interests.