Quote:
Not that I'm an old timer or know everything about this, but it is my understanding that they won't molt if you're using supplemental lighting. Recently my 2 16.5 week olds went through a mini molt; they suddenly dropped all their gorgeous tail feathers and the yard looked like they'd been attacked! Those feathers grew back very quickly (I attribute that to always keeping them on a high protein feed) and they're starting to look ready to lay soon. My big girls went through a mini molt around that age too, I think they were somewhere around 12-14 weeks when they molted.
http://www.the-chicken-chick.com/search/label/molting and effect on egg production