So this is my first year raising chicks and we purchased through mail order and had them vaccinated. My husband bought all supplies needed (feed, heat lamp and water/feeders. We have had the chicks for a full week today and I just noticed he bought medicated feed and read if vaccinated it will void the vaccination. So advice on what i should do? toss the medicated 20lb feed bag!!!!!? continue to feed it to them? yikes? any advice would be helpful! thanks in advance.