Funding for this research was provided by:
Ministerio de Economía y Competitividad (AGL2016-75935-C2-1-R, AGL2013-44694-R, BES-2014-070723)
Comunidad de Madrid (PLATESA2-CM P2018/BAA-4370)
Universidad Complutense de Madrid-Santander
Received: 3 May 2020
Accepted: 15 July 2020
First Online: 25 July 2020
Ethics approval and consent to participate
: Handling of cows and blood sampling were conducted in accordance with Spanish and EU legislation (Law 32/2007, concerning animals, their exploitation, transportation, experimentation and sacrifice; Royal Decree 53/2013 for the protection of animals employed in research and teaching; Directive 2010/63/UE, related to the protection of animals used for scientific goals). Protocols were approved by the Animal Welfare Committee of the Community of Madrid, Spain (permit number PROEX 236/17).
: Not applicable.
: The authors declare that they have no competing interests.