Manna Pro Medicated Chick Starter Grower is formulated for the development of active immunity to help prevent coccidiosis, increase rate of weight gain and improve feed efficiency in replacement chickens. This feed is a medicated (with Amprolium) complete crumble for chicks from 0 to 16 weeks. It has 18% protein for weight gain and muscle development, and is fortified with vitamins and minerals for healthy growth and sound development.