Two of my 3 1/2 month old Seramas have developed bad legs. Apperars one leg on each. One leg just seems too weak to support them. One showed up yesterday and the other one today. The roo cannot stand on either leg now. I vaguely remember something about vitamin E or something. Please help asap before anymore go down on me. They just sit there. Comb color os not real good. No other symptoms.