Funding for this research was provided by:
Received: 18 April 2019
Accepted: 29 July 2020
First Online: 24 August 2020
Ethics approval and consent to participate
: This study was approved by the Research Committee of the Bureau of Disease Control and Veterinary Services, Department of Livestock Development, Thailand.
: <i>Not Applicable.</i>
: The authors declare that they have no competing interests.