I have a herd sire that is about three and a half. He is a big bruizer rex at 9.5 pounds. I only feed him half a cup of feed and hay a day and only hay on wed. and Sat. The thing is the hide over his shoulders is thick, so thick it's hard to get hold of him. I see nothing wrong with his skin, no infection or swelling, but honestly he could be a boar hog it's so thick over his shoulders. Is this normal? I usually only keep a buck for two years or so, so I really have no idea if this is normal or not.