Overuse of antibiotics in livestock production contributes to antimicrobial resistance that threatens both human and animal health, while also masking welfare problems that should be addressed through management improvement.
Antibiotic overuse in livestock is simultaneously a public health issue and a welfare indicator. High antimicrobial use in a livestock system often reflects management conditions that cause disease — overcrowding, stress, poor nutrition — that are then treated pharmacologically rather than corrected. The farms with lowest antibiotic use and best welfare outcomes demonstrate that these goals are aligned rather than opposed. Reducing antimicrobial use by improving welfare conditions benefits animals, humans, and antibiotic stewardship simultaneously.