Stereotypic Behaviours in Horses: Causes and Prevention

Stereotypies like weaving, crib-biting, and wind-sucking develop in horses kept in environments that fail to meet their behavioural needs. These behaviours indicate chronic welfare problems and are irreversible once established.

Key Facts

Approximately 5% of horses develop stereotypies, with higher rates in competition horses
Crib-biting (grasping objects and sucking air) is associated with stomach ulcer risk
Weaving (swaying head and neck) develops from social isolation and restricted movement
Stereotypies cannot be unlearned once established — prevention in young horses is essential
Full-time stabling, limited turnout, and concentrate-heavy diets are the primary risk factors

Welfare Considerations

Stereotypies in horses develop as coping responses to barren, socially isolated environments. Horses are highly social animals that evolved to graze 14-16 hours per day and live in stable herds. Stabling for most of the day on a concentrate diet deprives them of continuous foraging and social contact. The development of a stereotypy indicates the horse has been chronically unable to perform motivated natural behaviours. Anti-stereotypy devices that physically prevent performance do not address the underlying welfare cause and are condemned by welfare organisations.

What You Can Do

Ensure horses have maximum possible turnout time with equine companions
Provide ad libitum forage (hay or haylage) to simulate natural grazing patterns
Avoid anti-weave bars or devices that prevent stereotypy performance without addressing causes
Seek a vet or behaviourist assessment if a young horse begins showing repetitive behaviours
Support stable design standards that require social contact and adequate forage access