Research into positive emotional states in pigs is transforming welfare assessment, moving beyond absence of suffering to actively measuring signs of contentment and positive experience.
The science of positive emotions in pigs represents a fundamental shift in how animal welfare is conceptualized and measured. Traditional welfare assessment focused on identifying and reducing negative experiences — injury, disease, behavioral restriction. Positive welfare science asks instead what constitutes a good life for pigs and how we can actively provide it. Research confirms that pigs in richer environments with social opportunities, exploratory stimulation, and positive human interaction show measurable indicators of positive emotional states. These animals make more optimistic choices in ambiguous situations, play more frequently, and show ear and vocalization patterns associated with positive affect. Farming systems designed around positive welfare provision — rather than just harm minimization — produce demonstrably better outcomes for both animals and product quality.