to keep hens laying and not molt, you need to add artificial lighting. A good practice is about 3 extra hrs of lighting. Some do it in the evening, others in the morning. A hens system is based on the natural light of the sun. When daylight naturallly shortens, they go into a molt. So adding art. Light makes them think the days are still the same length and they don't lose feathers. And their laying will stay up to par all yr long. A good method is put light on a timer.
This keeps them producing, but shortens the hens laying life dramatically. If you do let them moult, their feathers need extra protein to grow back. A good source of protein is dog food or cat food. Soak it in water till soft. They absolutely love this. Good source of meat proteins. Which they need and don't get in their store bought laying pellets/crumbles/mashes which is generallly all vegetarian based.