Funding for this research was provided by:
University of Veterinary Medicine Vienna
Received: 7 September 2021
Accepted: 11 October 2021
First Online: 19 October 2021
: This study was discussed and approved by the institutional ethics and animal welfare committee of the Vetmeduni Vienna in accordance with GSP guidelines and national legislation (ETK-10/07/2018).
: The authors declare that the owner of the slaughterhouse, which is simultaneously the owner of the animals once they arrived at the slaughterhouse, gave a written consent for publication of the data.
: The authors declare no conflict of interest. The provider of the ELISA test kits had no role in the design of the study, in the collection, analyses, or interpretation of data, in the writing of the manuscript, or in the decision to publish the results.