The routine use of antibiotics in livestock farming to compensate for poor welfare conditions contributes to antimicrobial resistance. The link between animal welfare and antibiotic use reveals how improving welfare protects both animals and human health.
The relationship between animal welfare and antibiotic use illustrates how poor welfare has consequences beyond individual animal suffering. Overcrowded, stressful conditions suppress immune function making animals more susceptible to infectious disease. The industry response has been to administer antibiotics prophylactically rather than address the underlying welfare conditions driving disease. This creates selection pressure for resistant bacteria that can transfer to human pathogens. Higher welfare systems that provide adequate space, enrichment, outdoor access, and good stockmanship inherently reduce disease pressure, lowering antibiotic need. Improving animal welfare is therefore simultaneously an animal welfare intervention and a public health intervention.