I have noticed that many of you feed medicated feed to your growing chicks. What is the purpose of this? I am fairly new to chickens (about 7 months) and the property I live on the previous tennant left a few of his chickens on his property. When hubby and I found them there was a hen and 10 little babies. Since I new nothing about chickens at that time I basically let the hen rear her own babies. I did give them food and water, but they had access to free range during the day. I did not give any medicated feed to them or vaccinate them. In the future my husband and I possibly plan to raise chicks/chickens to sell and for their eggs. Is giving medicated feed and vaccinating necessary, if so why? My babies are now almost 8 months old (have only 1 left as I sold a few, and traded a few for some different breeds). My babies grew into very healthy birds. The guy that I traded w/ yesterday commented on healthy my birds were. I like to do things in a more natural/wholistic approach. I don't like to give my animals a lot of chemicals, and I worm only naturally (I don't use chemical wormers), and am against vaccinating. I do give my animals nosodes (homeopathic vaccines) instead of regular vaccines.