No eggs, help please.
I expect mature hens to stop laying for at least a couple of months in fall -- and for even longer as they age -- due to decreasing light of shorter days and molt. Some hens may molt more lightly so that process may be less obvious. Stress from adding new birds is often cited also as a reason for them to stop laying.
Since you have at least two of these things going on, I'd just let them settle in and assume they are taking a normal break from laying, if they all seem healthy, have a good diet, etc. When the days get longer, I'd expect them to start back up. Or add light to stimulate.
I was wondering the same about my layers, as of the last few weeks. Originally thought it was we had too many roosters (6). We returned 4 and now even 2 seems too many. Then we learned it was really that the days are getting shorter as fall falls effecting the chicken's endocrine (hormone) system. So I got a light timer and incandescent bulb lamp set up in the coop. Learned from the experienced folk here to set it for the to extend the daylight from the morning side. However I wanted to just flick on a light for a while in the evenings after I shut them into the coop, the chickens like getting up earlier and light to bed down early (early bird gets the worm), so using a timer is best and in the evenings would be destructively disruptive to their circadian cycle. Yes, it's also disruptive on the morning side but far less so and t least we'll eventually get eggs again out of it. Good Luck, Nick
A bird needs a certain amount of food and water to produce an egg.
If you are providing all they can eat, perhaps that nipple system isn't letting them drink as much as a bowl would?
At the end of each day, I take a big bowl of crumble and make it into mash.
They eagerly gobble it up. It's funny though, if their dry food gets wet via rain, they avoid it like it's poison.
My birds lay all Winter long.
Next depends on how old they are..if there hatchery production birds lay are usally only good for few years