I usually start trimming babies when they're still on their dams, somewhere between 2 - 4 weeks. Much easier to influence growth and correct problems, and much easier to handle a baby holding him next to his dam than to handle a weanling. Even if all the farrier does is trim a little toe and shape the foot, it's well worth the trouble.
I would say at 9 months it's high time. Even if he's wearing off his hooves to an appropriate length, at least get the farrier to examine, watch him move, handle his feet, get him used to the rasp, and shape the feet to prevent chipping and breaking.
Last edited by maura; 02-01-2012 at 10:03 AM.
Reason: changed months to weeks