Good info here. One other thing I've noticed through experience with my own girls, any change will mess with production. It sounds like each time they've adjusted to a new change, you've thrown something new at them. Even little things like switching food or changing the daily routine will potentially throw them off anywhere from a couple days, to a couple weeks.
In so many ways, less is more with chickens. Find a routine that works for you and them, and stick with it as best you can, and don't give up!!
In so many ways, less is more with chickens. Find a routine that works for you and them, and stick with it as best you can, and don't give up!!