Received: 23 December 2021
Accepted: 20 March 2022
First Online: 13 June 2022
: All farms enrolled in the study followed their own management practices. No protocol approval from the ethics committee of Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna (IZSLER) was required.
: The authors declare that they have no competing interests.