AUTHOR=Giersberg Mona F. , Renaud David , Kemper Nicole TITLE=Editorial: Perspectives in Dealing With Surplus Male Farm Animals JOURNAL=Frontiers in Veterinary Science VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2021.797081 DOI=10.3389/fvets.2021.797081 ISSN=2297-1769