Smoky (1933)

"The fascinating story of a horse in a romance of love and adventure."

Rodeo star forms a strong bond with the noble horse he took from the wilds and trained. Unfortunately, they end up on different life paths and are separated. When at last they are reunited, the cowboy is appalled to discover that Smoky has become a broken down cart horse with an appointment at the local abattoir. Fortunately the cowboy intervenes and saves the horse from death