Funding for this research was provided by:
Akademie für Tiergesundheit
Received: 17 May 2020
Accepted: 22 September 2020
First Online: 8 October 2020
Compliance with ethical standards
: The authors declare that they have no competing interests.
: The animal experiments related to the blood sampling were approved by the responsible authorities (Landesdirektion Sachsen, Germany, trial registration number V13/10).
: Not applicable