The overuse of antibiotics in livestock farming creates antimicrobial resistance that threatens human and animal health while indicating underlying welfare problems in production systems.
The connection between antibiotic overuse and animal welfare runs in both directions. Poor welfare conditions including overcrowding, stress, and inadequate housing create the disease pressure that drives antibiotic use. Reducing antibiotic use without addressing underlying welfare problems causes animal suffering to increase. The most effective antibiotic stewardship programs address root causes through better housing, lower stocking density, improved nutrition, and stronger biosecurity — all of which also improve animal welfare directly.