Funding for this research was provided by:
Maa- ja MetsätalousministeriÖ (2212/03.01.02/2015)
Received: 2 November 2019
Accepted: 20 February 2020
First Online: 4 March 2020
Ethics approval and consent to participate
: Study design was approved in advance by the Animal Experimental Board of the Regional State Administrative Agency in Finland (ref. number: ESAVI/9788/04.10.07/2016). Written consent to participation was obtained from the owners of the calf rearing unit.
: Not applicable.
: The authors declare that they have no competing interests.