I have a few questions: 1) Has anyone heard that you should not give chicks vitamins if they are on Medicated feed starter because the thiamin interferes with the amprolium? True or False? 2)You should not feed a lot of protein if a chick has cocci because the cocci "feeds" on it? True or False? 3)When treating chicks (that are eating med. chick starter that has amprolium in it) with Sulmet , should i change the starter to unmedicated?