Nose ringing of pigs prevents rooting behavior in outdoor systems but causes significant pain and denies a fundamental behavioral need. The welfare trade-offs of this practice are actively debated.
Nose ringing exemplifies a welfare compromise accepted in some higher-welfare production systems that is rarely examined critically. Organic and free-range pig production is rightly recognized as better than conventional in many respects, but the use of nose ringing trades one welfare compromise for another - the rooting prevention that makes outdoor systems feasible comes at the cost of a fundamental behavioral need. Sweden's approach - banning ringing entirely and requiring alternative land management - demonstrates that outdoor pig production without nose ringing is viable. This should set the benchmark for what higher-welfare outdoor pig production means.