What all and how exactly are you feeding?
..... and......
Where in this world are you located?
Climate, and time of year, is almost always a factor.
Please add your general geographical location to your profile.
It's easy to do, and then it's always there!
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Yes, I use lights but don't crank them up until mid-December when all the hens are done molting. Lighting is tricky.
Here's a
pretty good article on supplemental lighting. Some folks think that using lighting shortens the years a hen will lay, I don't agree with that theory.