Trailer loading problems are among the most common behavioral issues reported by horse owners and can result in dangerous situations for both horse and handler, but positive reinforcement training approaches can transform loading welfare.
Forced loading using escalating pressure methods causes acute fear and distress in horses, and can result in severe injuries to both horse and handler from the flight response. Horses that have experienced traumatic loading retain fear memories that make subsequent loading increasingly difficult. Positive reinforcement approaches recognize that loading into a small, moving vehicle is genuinely challenging for a prey animal, and build confidence through systematic desensitization. Welfare during transport itself requires non-slip footing, adequate ventilation, access to hay and water, and appropriate journey duration limits.