Antibiotic use in farming is both a public health concern and a welfare indicator, with responsible use requiring treating sick animals while not using antibiotics to compensate for poor welfare conditions.
Antibiotic stewardship and farm animal welfare are inseparable. High antibiotic use reflects disease pressure caused by stressful, overcrowded conditions — treating the symptom while ignoring the cause. Metaphylaxis (treating groups of animals when some are sick to prevent spread) is appropriate welfare management in genuine disease situations but becomes welfare-problematic when used routinely to manage chronic poor conditions. The Denmark experience demonstrates that reducing antibiotic use through improved welfare conditions is achievable at scale. Welfare improvements that reduce disease incidence simultaneously improve individual animal welfare and contribute to antimicrobial resistance prevention.