Horse Stereotypies: Causes, Prevention and Management

Stereotypic behaviours in horses including crib-biting, weaving and box-walking indicate chronic stress and unmet behavioural needs requiring management changes.

Key Facts

Stereotypies develop in approximately 10-15% of stabled horses
Crib-biting involves grasping a fixed object, arching the neck and swallowing air
Weaving involves rhythmic swaying from side to side with weight shifting
Once established, stereotypies cannot be cured - only management can reduce frequency
Collar devices prevent crib-biting but do not address the underlying welfare cause
Foals who observe stereotypic behaviour from other horses are more likely to develop it
Horses with free access to forage show dramatically reduced stereotypy rates

Welfare Considerations

Stereotypies in horses are not bad habits or vices - they are coping mechanisms that develop in response to chronic welfare deficits. The most common triggers are insufficient forage, excessive confinement, social isolation and lack of opportunity for natural movement. Once a stereotypy is established, it indicates that the horse is or was experiencing a welfare problem serious enough to drive the development of a coping mechanism. Anti-weaving grilles and crib-biting collars prevent the behaviour without addressing its cause, effectively removing a coping mechanism from an animal that may still need it.

What You Can Do

Provide constant access to hay or forage to prevent hunger-driven stereotypies
Maximise turnout time with appropriate horse companionship
Never use crib-biting collars or anti-weaving grilles without also addressing the underlying cause
Allow horses to see, smell and touch other horses from their stable
Increase environmental complexity in stables with appropriate enrichment
Consider whether management changes can reduce existing stereotypy frequency
Consult an equine behaviourist if stereotypies are persistent or worsening