Horses are highly social herd animals that experience significant stress when isolated. Management practices that prevent appropriate social contact are a major welfare concern in equine husbandry.
Isolating horses, which is common in competition yards where horses are kept in individual stables with limited social contact, imposes significant welfare costs. Stereotypic behaviors including weaving (rhythmic swaying) and box-walking develop in response to this isolation and, once established, persist even when social needs are later met. These behaviors indicate chronic stress and frustration that represents genuine suffering. Even where full field group housing is not possible, management systems that allow regular social contact, mutual grooming, and shared turnout in compatible pairs or small groups significantly improve welfare.