Reducing antibiotic use in livestock benefits both human health and animal welfare. The two goals are aligned because high disease burden — driving antibiotic need — indicates poor welfare.
Antibiotic stewardship and animal welfare are complementary rather than competing objectives. The high disease burden in intensive livestock systems — the primary driver of prophylactic antibiotic use — reflects welfare failures including overcrowding, inadequate ventilation, immunological stress from production pressure, and the mixing of animals from multiple sources. Reducing disease incidence by improving these welfare-related factors simultaneously reduces antibiotic need. The EU ban on prophylactic antibiotic use has accelerated this virtuous cycle by forcing producers to address the underlying welfare problems that made prophylactic medication necessary. Countries and production systems that have achieved meaningful antibiotic reduction have done so primarily through welfare improvement rather than antibiotic reduction programs alone.