I have a year and a half old Sicilian buttercup rooster, he is very deformed, but happy. About a month ago his comb and wattles went white and I wormed him but now his comb is shriveling up. I took him to the vet Monday and they did a fecal float and he has no parasites at all. We wormed him again anyway, and now we are going to try antibiotics to see if he improves. Aside from being severely anemic he acts totally normal, eats and drinks good, no diarrhea. What could be wrong with him? He lives with his girlfriend and some babies and they are all fine. Also what can I give him for an iron supplement? I've been making him lots of snacks with high iron food, but I think he could use an extra boost.