Horses evolved as wide-ranging grazers, and providing adequate pasture access is fundamental to their physical and psychological well-being in domestic settings.
Pasture access is not a luxury but a core welfare requirement for horses. Horses evolved for continuous movement and grazing — confining them in stalls for most of the day frustrates these deep behavioral drives and causes measurable physical and psychological harm. Stereotypic behaviors like crib-biting and weaving are direct consequences of confinement frustration. Welfare-centered horse management prioritizes maximum turnout time, social contact with compatible horses, and access to forage throughout the day, approaching the continuous grazing pattern their physiology evolved to support.