Funding for this research was provided by:
Rural Development Administration (PJ010530)
Received: 14 January 2020
Accepted: 29 April 2020
First Online: 6 May 2020
Ethics approval and consent to participate
: Animal materials used in the present study were received as routine diagnostic submissions and were used under the agreement of Jeonbuk National University-Veterinary Diagnostic Center (JBNU-VDC). Furthermore, written consent for the use of sow samples were obtained from the owners. The authors also confirmed that ethical approval is not essential to use animal materials received for diagnostic purpose in accordance with the guidelines of the Jeonbuk National University-Institutional Animal Care and Use Committee (JBNU-IACUC).
: Not applicable.
: The authors declare that they have no competing interests.