egg laying stopped

[3 NH reds]

I have some Ranger meat birds and I wanted to hatch a new generation of a Ranger/Giant mix. at 22 weeks the egg laying started and I got eggs like every other day. now 2 weeks later it stopped. No change in diet living space or any other stress. They are young so no molting going on.I have no idea why.

 

[Fred's Hens]

Usually, if they aren't laying off site somewhere, it is simply a matter of light. The days are very short this time of year, heading for the shortest day of the year, Dec 22.