cheeptrick,
My ee is about 20 weeks old now. I switched over to layer about 2 weeks ago becuz my red sex link hen started laying about 3 1/2 weeks ago. They neither one like it, and mine dont free range enuff to get all they need without eating their feed. So unless I get a dif brand of layer to try, am switching back to grower. I also give them oyster shell, the EE is not eating it yet, but the red must feel she needs it cuz she gobbles it up.
I personally wouldnt wait til 24 weeks, usually they start laying before that time. My EE hasnt yet, but it will be any day, she keeps checking out the nestbox the last two days.
Jill