I bought some co op blended starter/grower today and didn't see that it was medicated until I got it home. I haven't been feeding my 3 barred rock chicks (about 10 weeks old) medicated starter and I really don't want to start now. They are in fine health and growing like weeds. I am of the opinion that if something isnt sick, it doesnt need medication. What is the medication even for? cocosidosis? (spelling?) Is it an antibiotic? Seems like something you wouldn't really want in your food supply if it wasn't really necessary. I will be taking it back monday but wondered if anyone knew exactly what the medication even was?