Age of hen before eggs used in incubator

[PostCarbonPioneer]

I've tried searching this forum but haven't been able to find an answer, or even the question.

I'm trying to breed for black s*x link. My Barred Rock hens are 6 months old, and my roo is about 8 months. How old do my hens need to be before I start keeping their eggs for use in an incubator? Or should I think more of the size of the egg?

Thanks.

 

[AllCoop'dUp]

I just recently asked this question and was told that the hen needed to be laying for at least a month before you used her eggs.

 

[Mahonri]

It's best if they've been laying for a month, but this past week I hatched out two eggs that were first eggs for two different hens.

Tiny chicks but pretty... we'll see how big they get or if they stay bantam size.