What needs to be done if a horse exhibits signs of illness or distress?

If a horse exhibits signs of illness or distress, placing the horse on the veterinarian's list is crucial. This action ensures that the horse is properly assessed and treated by a qualified veterinarian before being allowed to participate in racing activities again. Being on the veterinary list indicates that the horse has been identified as needing further evaluation, which is essential for the health and safety of both the animal and the racing community. This process helps prevent the potential worsening of the horse's condition during a race and upholds the integrity of the sport by ensuring that all competing horses are fit to race.

The other options do not prioritize the horse's health. Allowing a horse to race when it shows signs of distress could lead to severe injuries or exacerbate health issues. Relying solely on the owner's decision regarding the horse's treatment may not guarantee an objective and medically sound judgment, as owners may not always have the necessary expertise in equine health. Neglecting to check up on the horse would disregard the animal’s well-being and could violate racing regulations designed to protect horses in the sport. Overall, the veterinarian's list serves as a critical measure for safeguarding the health of racehorses.