Routine antibiotic use in livestock production contributes to antimicrobial resistance while masking the welfare problems that necessitate their use in the first place.
Antibiotic use in livestock sits at the intersection of animal welfare and global public health. From a welfare perspective, routine prophylactic use of antibiotics is a symptom of inadequate conditions rather than a solution — animals requiring preventive medication are typically experiencing welfare challenges including overcrowding, poor ventilation, nutritional stress, or genetic disease susceptibility. Addressing these root causes improves both animal welfare and antibiotic stewardship simultaneously. The Danish example demonstrates this powerfully: welfare-improving housing reforms reduced disease pressure enough to halve antibiotic use while maintaining productivity. The global health stakes — antimicrobial resistance is projected to cause 10 million deaths annually by 2050 — give livestock welfare improvement a public health urgency that strengthens the case for reform.