Antimicrobial resistance threatens both human and animal health, and reducing antibiotic use in farming requires improving animal welfare conditions that currently drive disease and dependency.
Antimicrobial resistance creates a link between animal welfare and human health outcomes that is both scientifically clear and politically potent. Factory farming conditions that necessitate prophylactic antibiotics accelerate resistance development. Improving welfare conditions — more space, better ventilation, lower density — reduces disease incidence and antibiotic need simultaneously, making the welfare and public health cases mutually reinforcing.