Biosecurity measures in pig farming prevent disease introduction that causes significant welfare harm, making prevention one of the most important welfare tools available.
Pigs in herds with poor biosecurity face higher disease burden causing pain, respiratory distress, and mortality. Prevention through biosecurity is more welfare-positive than treatment as it avoids the suffering of the disease itself alongside any treatment impacts. Biosecurity also reduces antibiotic use, addressing the wider welfare and public health concern of antimicrobial resistance. Well-designed biosecurity systems are achievable at farms of all sizes.