My rooster got sick 6 days ago so I gave him wormer, penicillin, and plenty of fluids. He won't eat so I've been force feeding him wet cat food. He sleeps all day. His lungs sound clear. His stool is liquid and sometimes light green. His comb goes from red to black sometimes. He can't walk without stumbling and dropping a wing to catch himself. It is almost as if he got a fever and it made him retarded. Is it possible he has fowl cholera? I really don't want to put my hens down because of that.