Stereotypies in horses including crib-biting and weaving indicate chronic frustration and inadequate environmental conditions.
Stereotypies in horses are permanent indicators that the animal has experienced chronic frustration during development. Once established, they cannot be eliminated though they can be reduced in frequency. They develop because horses are highly motivated to move, socialise, and forage continuously, but stabling, restricted turnout, and limited roughage frustrate these fundamental drives. Prevention through appropriate management is far more effective than attempting treatment.