Article History
Received: 7 March 2019
Accepted: 16 July 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: No ethical approval was obtained because the present study did not involve laboratory animals and only involved blood samples. All samples used for this study were bovine blood samples which were obtained in the framework of the daily routine dairy herd supervision. All samples were processed with the owners’ consent.
: Not applicable.
: The authors declare that they have no competing interests.