Received: 6 January 2020
Accepted: 11 May 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: All samples were obtained with owner’s permission and the study was approved by the Research Committee of the Koret School of Veterinary Medicine, Veterinary Teaching Hospital (KSVM-VTH/23_2014).
: Not applicable.
: The authors declare that they have no competing interests.