I am getting 12 Buckeye chicks soon and bought a bag of the Purina Start N Grow medicated chick feed. I have never used medicated before and now am wondering if I should. So I would like to hear some opinions from other BYCers about why or why not you used medicated. I am trying to find out how long the chemicles stay in a chicks body if they do eat medicated feed. Does this weaken their immune system or am I overly concerned? Does this mean we will eventually eat the medicine in our chickens when we process them? Or will it be out of their system by then? I have read about cocci alot and want to prevent an outbreak if possible but not if it comprimises their immune system and then they will always need medicine to fight illness in the future. I will be googling to look for some info but would love to hear opinions of those who have personal experience.