Lighting is a hot topic....some folks don't bother to ask or read how the light is to be used.Chicalina I didn’t find any studies, which is why I asked if you had any. I guess you dont have any either. I’ve seen more information saying what aart said (they have more eggs than they will ever lay). Similar to humans. They stop laying as they get older and the egg quality decreases. More to do with age than how many they have laid.
Also, the supplemental light for me was because their coop is in a dark garage (to help protect them from predators). There is a small window but it does’t let much light in. I put a light on a timer going on and off with our natural sunrise/sunset. Two days after I added it one girl started laying. I just wanted to know if it was related, didn’t need a lecture. Thanks though!