What about based on follicle development?
This is a tough one. For me personally it's
Age > Follicle Development > Weight
I like my girls to be as healthy and well sized as possible so that first clutch is a good one and sets the tone for the next few years for her.
BUT if she's old enough and developing follices but under 1500g I'd attempt to breed her.
I think breeding a female too young and too light can hinder their egg production for the first few years of laying and potentially longer.
Hope that helps![]()