Not laying eggs and loosing feathers with no new coming up

[MargieG]

So most of my hens were born in June 2023- my 2 welsummers are on eggs strike since September, my black copper maran since October. Everyone else (Ameraucanas and Olive Eggers) have decreased egg production but have been laying weekly until… the third week of December when all of them decided to board the egg strike train including my heaviest layer, TW, my leghorn. I’m not really worried about the egg production because they are all looking healthy except TW. A month ago or so started sleeping in the nesting boxes (she has never done that before) and a week ago I realized that she had poop caked up in her butt feathers and she was acting oddly. So I gave her “a bath”, cleaned her behind and sprayed some stuff I had bought for it and in the process, I realized she is losing an extraordinary amount of feathers but no baby ones coming up. Where she lost feathers she looks like the chicken that they sell at the store. She is also acting oddly and stays behind in the run while normally she would be walking around the property with the others. Is it possible that she is molting now? Isn’t it a bit late for that? I treat monthly (if not biweekly) the coop area and the henhouse with DH but I do have straws in the run.
Should I be worried? All the others look amazing (clean healthy and fluffy) but she looks like she is having a rough time. What should I do? The photos below are right after I gave her a bath
Thank you for your help!

 

[Kiki]

Does she only eat bird seed?

 

[MargieG]

No they all eat kitchen scraps and other things I have fed them in the winter like oats, dried worms and rice, lettuce, greens and bananas…

 

[nuthatched]

Do they get any chicken feed or just treats?

 

[MargieG]

Do they get any chicken feed or just treats?

They do eat chicken feed. I had a few chicks this past spring so until a couple of weeks ago they were all on a whole grain organic grower feed to which I added oyster shells. This past weekend I mixed the grower feed to the layer feed and added pepper flakes.

 

[nuthatched]

They do eat chicken feed. I had a few chicks this past spring so until a couple of weeks ago they were all on a whole grain organic grower feed to which I added oyster shells. This past weekend I mixed the grower feed to the layer feed and added pepper flakes.

Feed them only the chick feed right now.
If it's whole grain, make sure to wet it as whole grain feeds often cause nutrition deficiency because birds pick and choose what they like, with oyster shell available.
No more extras until they get through molt and then cut way back. :]

 

[MargieG]

Feed them only the chick feed right now.
If it's whole grain, make sure to wet it as whole grain feeds often cause nutrition deficiency because birds pick and choose what they like, with oyster shell available.
No more extras until they get through molt and then cut way back. :]

Oh wow. Ok will do. Thank you!

 

[sourland]

I would start feeding a balanced maintenance diet with oyster shell on the side or a balanced laying ration. I'd go for a minimum of 18% protein.

 

[MargieG]

I would start feeding a balanced maintenance diet with oyster shell on the side or a balanced laying ration. I'd go for a minimum of 18% protein.

Will do. Thank you