What animal is most commonly associated with the use of stocks for restraint?

The animal most commonly associated with the use of stocks for restraint is horses. Stocks are specifically designed to secure a horse safely while it is being examined or treated, minimizing the risk of injury to both the animal and the handler. This form of restraint prevents the horse from moving its legs and body, allowing for procedures such as veterinary care, dental work, or even routine grooming to be performed more easily and safely.

While stocks might be used with other animals in varying contexts, such as cattle or pigs, their primary association is indeed with horses due to their size and strength, which necessitates such equipment for safe handling. Additionally, the unique anatomy and behavior of horses make stocks particularly effective for managing these animals during necessary interventions.