I just got back from my local feed store, and I am confused. I tried to buy some non-medicated chick starter because all my babies that are coming next week are being vaccinated at the hatchery. Everything that I have read says that if you have your babies vaccinated, do not feed medicated chick starter. The people at the feed store said that they had never heard such a thing, and only carry medicated chick starter. What now? Any advice?