The relationship between antibiotic use in livestock and antimicrobial resistance has direct welfare implications for both animals and humans.
The use of antibiotics to compensate for poor welfare conditions creates a cycle that harms both animals and humans. Animals in crowded, stressful conditions with poor nutrition and hygiene are more susceptible to disease, requiring antibiotic treatment. This contributes to resistance development. As resistance grows, treatment options decline, meaning future animals with serious infections will face more limited and less effective treatment. Breaking this cycle requires welfare improvements that reduce disease incidence, not just antibiotic restriction.