They already do it in the coops to increase number of day night cycles.

Thanks, im sure there is some research, but coops i've driven past seam to still use normal day/night cycles with like skylights... anything with entirely artificial light?

The dark is required, so many are all but blacked out. But I'm not sure on 100% artificial. I do know it's completely over reasearched.

Coops are now one of the most crazy over-specified engineering things you'll ever see. They test and maximize cost efficiency of things like: how often to wipe dust off the light bulbs, given 50 different variables, and then contractually write it out.

For every tiny thing, and that was 10+ years ago.

I can believe that, chicken coops probably one of the oldest studied things.