Stereotypic behaviors in horses — cribbing, weaving, box walking — are welfare indicators arising from management deficits, and prevention is far more effective than intervention after onset.
Horse stereotypies represent welfare-significant behavioral indicators of chronically frustrated motivational systems. Horses evolved to roam 10-16 km daily, forage up to 18 hours, and maintain continuous social contact within herds. Stable management restricting movement, limiting forage to twice-daily meals, and isolating horses in individual stalls frustrates all three core behavioral systems simultaneously. Stereotypy development is the nervous system response to this chronic deprivation — a coping mechanism that, once established in neural pathways, persists even when management improves. Prevention is the only fully effective intervention: foals raised correctly rarely develop stereotypies. Anti-weaving bars and crib collars suppress behavior expression, potentially increasing psychological suffering without addressing the underlying motivation. Welfare-positive management provides ad libitum forage, social turnout, and maximum movement opportunity.