Horses are transported long distances for racing, breeding, sales, and slaughter. Transport welfare standards vary enormously and long journeys cause significant suffering.
Long-distance horse transport causes welfare problems through exhaustion, dehydration, respiratory infection from accumulated dust and ammonia, and injuries from vehicle movement. EU regulations allow journeys of 24 hours with only brief water stops — welfare organizations consider this far too long. Transport to slaughter across international borders involves horses from multiple sources in poor condition. Horses transported for slaughter experience the highest welfare costs as they are often in compromised condition before transport begins.