Funding for this research was provided by:
Kennel Club Charitable Trust (2)
Received: 21 June 2019
Accepted: 31 July 2019
First Online: 3 September 2019
Change Date: 28 October 2019
Change Type: Correction
Change Details: In the original publication of this article , due to an error in a single count relating to the denominator used for this study, some of the derived values were wrong, so that abstract, plain English summary, results and Fig. 1 all need to be revised.
Ethics approval and consent to participate
: Ethics approval was granted by the RVC Ethics and Welfare Committee (reference number URN 2015 1369).
: Not applicable
: The authors declare that they have no competing interests.