Farm welfare auditing is the mechanism through which welfare standards are verified in supply chains. Understanding what current auditing systems measure, what they miss, and how they can be improved supports better welfare outcomes.
Welfare auditing systems have genuine limitations that affect their ability to detect and prevent welfare problems. Scheduled audits create perverse incentives for temporary welfare improvement before inspection, rather than sustained welfare culture. Input-based measurement (does the farm have straw? what is the pen size?) misses the welfare outcomes that actually matter - are pigs in pain, are they able to express natural behaviour, are they positively engaged with their environment? Animal-based measures including lameness scoring, tail and ear injury assessment, and positive welfare indicators provide more valid welfare assessment. Strengthening auditing systems to include unannounced visits, animal-based outcomes, and technology-assisted continuous monitoring would significantly improve welfare assurance credibility.