Antibiotic Stewardship in Animal Agriculture: Welfare and Resistance

Overuse of antibiotics in animal agriculture drives antimicrobial resistance, a global health crisis — but reducing antibiotic use also requires addressing the underlying welfare conditions that drive disease.

Key Facts

Approximately 73% of global antibiotic consumption occurs in animal agriculture, primarily for growth promotion and disease prevention.
Medically important antibiotics used in farm animals are a significant contributor to the rise of antibiotic-resistant infections in humans.
The EU banned growth-promoting antibiotic use in 2006; the US followed with significant restrictions in 2017.
Antibiotic reduction programs in Denmark reduced agricultural antibiotic use by 50% without significant productivity losses.
Overcrowding, poor ventilation, and stress are the primary drivers of disease requiring antibiotic treatment in farm animals.
Prophylactic antibiotic use — routine administration to healthy animals to prevent disease — is widely considered irresponsible.
Alternative disease prevention strategies including vaccines, probiotics, and improved hygiene can partially replace antibiotic use.

Welfare Considerations

Antibiotic stewardship and animal welfare are deeply intertwined issues. Antibiotic overuse in animal agriculture is primarily a symptom of poor welfare conditions: animals kept in overcrowded, stressful environments with inadequate ventilation and sanitation become sick and require treatment. Reducing antibiotic use without improving underlying welfare conditions simply means allowing disease to progress untreated — which is a welfare disaster. The welfare-positive path to antibiotic reduction involves improving the conditions that drive disease: lower stocking densities, better ventilation, richer environments, and earlier detection of illness through monitoring technology. This approach benefits animal welfare, reduces antibiotic resistance risk, and frequently improves production efficiency. Supporting this dual agenda is one of the most impactful positions available to animal welfare advocates.

What You Can Do

Support certification schemes that prohibit routine prophylactic antibiotic use as a condition of welfare certification.
Choose meat and dairy products from producers with documented antibiotic stewardship programs.
Advocate for a complete ban on growth-promoting antibiotic use in all remaining countries.
Support research into alternative disease prevention strategies that reduce antibiotic dependence.
Engage with food companies to publish antibiotic use data for their animal agriculture supply chains.