Join Date: Jun 2009
Location: Somewhere, over the rainbow
• Horses: 0
I also have a Mustang that had issues with eating rocks after I brought her to my farm. He may have mineral deficiency problems, and he may also be bored. Try the loose minerals, and be ready for the horse to consume a lot of them the first few weeks. It is a new thing to play with, and a new taste. As it becomes 'not-so-new' he will eat less.
Jamie Jackson has written books about the natural life of Mustangs, and the differences with domesticated life. I highly suggest reading them. The horse may need to move more, may need turnout with another horse, and may need less rich hay and feed. Be aware that the Mustangs have a 'frugal' or 'easy keeper' gene. They are prone to becoming insulin resistant when fed grain or alfalfa, or kept too fat. Try giving a lower quality grass hay spread around the paddock. Also put out some toys that the horse can manipulate. A branch, ball, toy that drops treats if moved, or short length of nylon rope with knots. How about a plastic weave feed bag containing crushed aluminum cans?
I agree with the others - call a vet. However, I'd call a vet that has had experience with Mustangs. They tend to have different issues with transitions than domestic bred horses. Stalling the horse 24/7 may make him more neurotic.