We have a 2 1/2 year old Angus bull, We had noticed that his front hooves were cracking vertically on the inside toe nail. Took him to the vet today to get his hooves trimmed up and to cut horizontal grooves about the cracking to keep the cracking from getting to his nerves. Much like you would fix cracking concrete. He got a mineral shot and out the door we went. Hope this helps his hooves out, trying to stop a problem before it got worse or he gets lame. Wish I would have taken before and after pics.