Antibiotic use in livestock affects both animal welfare and public health, with overuse driven by conditions that compromise farm animal health.
The link between antibiotic use and welfare is bidirectional. Animals in poor welfare conditions suffer higher disease burdens requiring antibiotic treatment. Conversely, restricting antibiotics without improving underlying conditions increases animal suffering. The most ethical approach addresses root causes: reducing stocking density, improving housing and nutrition, and implementing effective vaccination programmes. This simultaneously reduces antibiotic use and improves welfare outcomes.