I just got 2 pullets that are about 10 weeks old from a breeder who had them on medicated starter feed. Should I continue to give them the medicated, or should I give them regular starter? The last group of 4 chickens that are almost a year now that I got as chicks ended up with cocci when they were about 3 months old, it happened when I moved them from brooder to outside, I lost one and 3 ended up spending 2 nights with my vet. They have been great now and are on layer pellets. I never want to go through the sickness thing that bad again. What do you think?