I purchased some chicks from Hoover Hachery and they were medicated against mereks and cocci...I've been feeding them regular chick starter...but recently I had someone offer to give me 100 lbs of chick feed. I ask what kind of was and he said it was the 5 lb bags of Manna pro medicated chick feed. He originally pre purchaed the food for chicks that he was going to get but he decided against getting chicks so he told me i could have it. The problem is...my chicks are vaccinated...is it still okay to let my chicks eat this chick start even though its medicated? I don't want to give them too much meds if that's possible since they were vaccinated and now medicated chick feed. Any help would be greatly appreciated. Thanks.