Play behaviour in pigs is a scientifically validated positive welfare indicator, reflecting a state of good welfare rather than merely absence of suffering.
Play represents a pinnacle welfare indicator - pigs playing are demonstrably experiencing positive emotional states. Farms where pigs regularly play are delivering welfare beyond mere absence of suffering. Aiming to create conditions where play is a routine observable behaviour, rather than a rare exception, represents an aspirational welfare standard that captures the spirit of the five domains framework's fifth domain.