Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (WI 1754/16‐1, WI 3719/8-1, RO 1217/10‐1)
Leibniz-Institut für Nutztierbiologie
Received: 15 October 2020
Accepted: 17 June 2021
First Online: 29 June 2021
: <b>Ethics approval and consent to participate</b>
: The animal trial was approved by the local authority, the Regierungspräsidium Tübingen, Germany (HOH50/17TE) and performed at the Agricultural Experiment Station of the University of Hohenheim, Germany. All procedures were in accordance with the German Animal Welfare Legislation and complied with the European Union Directive 2010/63/EU on the protection of animals used for scientific purposes.
: Not applicable.
: The authors declare that they have no competing interests.