I am brand new to raising chickens. I have gotten 4 hens that are between 2-3 months old. I am wondering what to feed them when they start laying eggs. I am currently feeding them #3 scratch. I have read many conflicting articles on what to feed them. We are raising them for eggs only. Also how about crushed oyster? Should I have that mixed in there food, in a seperate feeder? Also should I be feeding them crushed oysters now or wait until they start laying. Thanks in advance for any responses, I need and appreciate all the advice.