So from what I know hock sores generally come from a horse being in a stall that is not clean for long periods of time like in bad weather. Ever since we have switched barns my Arabian has had hock sores on his back legs. They look fine and have scabs over them but they are not going away. You can touch them and he does not notice but it concerns me since they do not go away. His stall is always kept very clean and he is out all the time in good weather. He also doesn't lay down when he sleeps. Could the cause of his sores be from the switch in shavings at the new barn?