Horses kept alone face significant welfare challenges from social isolation. Companion animals including miniature horses, donkeys, and goats can provide important social support.
Social isolation in horses causes genuine welfare suffering through chronic stress, stereotypy development, and impaired psychological wellbeing. The instinctive nature of horses as herd animals means solo housing conflicts fundamentally with their behavioral needs. Where horse companionship is not available due to space, cost, or management constraints, companion animals can provide meaningful social contact that reduces isolation stress. The suitability of different companion species varies: donkeys provide longer-term stable companionship while goats may be more readily available but require careful management for dietary safety. The welfare benefit depends on the quality and duration of social interaction.