Oral stereotypies and locomotor stereotypies in horses are indicators of welfare problems. Understanding their origins helps prevent development and manage established behaviours.
Stereotypies in horses are chronic behavioural disorders that develop as coping mechanisms in response to welfare-inadequate environments. They indicate that the horse has experienced or is experiencing significant stress, frustration or deprivation. Once established, stereotypies typically persist even if management improves, because they become self-reinforcing through endorphin release. The most effective approach is therefore prevention: providing adequate forage, turnout, social contact and environmental complexity from the earliest stages of life. Cribbing collars and anti-weave bars that physically prevent the behaviour cause additional distress by blocking a coping mechanism without addressing the underlying problem. Management changes that improve overall welfare can reduce the frequency of established stereotypies even if they cannot eliminate them entirely.