Funding for this research was provided by:
Biotechnology and Biological Sciences Research Council (BB/M012085/1)
Received: 23 July 2019
Accepted: 29 March 2020
First Online: 1 May 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the University of Nottingham, School of Veterinary Medicine and Science ethical review committee ERN: 1144 140506 (Non ASPA). Informed consent was obtained in writing from each of the farmers who participated in the study.
: Not Applicable.
: The authors declare that they have no competing interests.