Funding for this research was provided by:
Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail
Direction générale de l'Alimentation
French National Animal Health Farmers’ Organization
French Institute for Research in Agriculture, Food & the Environment
Received: 21 October 2020
Accepted: 19 March 2021
First Online: 14 April 2021
: All sampling procedures complied with national and European regulations, and no specific ethics approval was therefore required.
: The authors declare that they have no competing interests.