Chickens often stop laying in response to changes. Our existing flock stopped laying for about two weeks after we added the 2013 pullets to the coop and didn't get back to normal for a month.Well I've got five mature hens that I moved to a new coop and they haven't laid an egg in ten days!!!! New young rooster in with them. That may be the problem....... Twiddling my thumbs.... Ain't buy grocery sto eggs!! LOL
A new coop and a new roo are a lot for their tiny brains to process but the bigger issue is more likely the coop that the roo.
As stress effect more then just egg laying add some protein to their diet and some liquid vitamins ( I use the kind for human babies) to their water.