I've got this one male chin named Shotput that's been kind of worrying me over the last few months. He's a year old and weighs about 570 grams. His brother from the same litter is about 100 grams heavier. I say I'm kind of worried because while he's rather boney he runs on his wheel constantly. I hear him in it litterally all night long. He'll run for about thirty seconds to a minute, stop stand up, rock back in his flying saucer and start running again. I wouldn't be surprised at all if he ran 30 miles a night. I changed his food about two months ago since the Mazuri didn't seem to be appealing to him. I've got him on Show Hutch Deluxe show rabbit food now and since he went from 430 grams to 470, but he hasn't been gaining since then.
I'm kind of worried that because he's so much more athletic than other chins that his feed isn't giving the optimal nutrition he needs. I'm wondering if there's a supliment that I could get for him that's similar to a body builders diet, something high in complex carbohydrates and protien. Could I also give him glucosimine or MSM for joint health?