Applying knowledge of pig cognitive complexity to enrich farm environments goes beyond physical enrichment to engage their problem-solving, social intelligence, and emotional capacities.
Pig cognitive enrichment applies insights from their demonstrable intelligence to create environments that engage their problem-solving capacity. Pigs in cognitively enriched environments show lower cortisol responses to challenges, more exploratory behavior, and better stress resilience. Novel object presentation requires regular rotation to prevent habituation — pigs quickly learn new stimuli and lose interest in familiar ones. Social cognition enrichment through group problem-solving tasks allows their cooperative intelligence to be expressed. Cognitive bias testing — using ambiguous cue presentations to measure optimistic or pessimistic interpretation — is a validated welfare indicator that directly measures affective state. Farms that provide cognitive enrichment alongside physical enrichment demonstrate the highest welfare outcomes in research settings.