Funding for this research was provided by:
National Research Foundation
Red Meat Research and Development South Africa
Received: 15 May 2019
Accepted: 20 December 2019
First Online: 7 January 2020
Ethics approval and consent to participate
: Serum that was used in this study was obtained from the diagnostics laboratory at the Agricultural Research Council, Onderstepoort Veterinary Institute. The serum is used for routine diagnostics. No animals were handled in this study, nor was serum prepared for the sole purpose of this study.
: Not applicable.
: The authors declare that they have no competing interests.