Post-legged describes a condition in which the joints in an animal are not set correctly.
Four-legged animals must have some bend in the hocks, otherwise the hooves would wear unevenly, and this may result in lameness, or at least a rougher gait.
Animals with a problem in their leg joints are recommended to be removed from the breeding line, as this condition will only pass on, and cause much pain and suffering to the young of this species.
Also, animals with an incorrect joint placement such as this will not do well in the ring at agricultural shows.
This condition may affect cattle, horses, sheep, and many other livestock animals.