Feeding older hens and young hens?

[bran411]

I am a little new to this and any information is greatly appreciated. I have a couple pullets about 10 months old and laying and I have 2 pullets about 7 weeks from laying, and I have 5 pullets that are about 3 months old. How do I go about feeding? Some need layer some need started?

 

[Firekin1]

Feed them all grower and offer oyster shell seperately for the calcium. The layers with eat the shell when they need it and the younger ones will pick at first but won't bother once the novelty wears off until they start laying and their body craves it.