Help! I don't know what's going on with my hen

[Dft2275]

Just yesterday we got 18 adult laying hens from somebody we know. Their living conditions were just awful and are expirenceing several deformities (twisted claws, missing feathers, ect) we have a much better setup for them now but I went to the coop to check on them this morning and one hen was laying down eyes closed and breathing badly.
I immediately removed her from the coop and I checked for gapeworms and things stuck in her throat and there wasn't any.
I gave her cold water to drink and stood her in some cold water for eat exhaustion she doesn't seem to want to drink so I gave her water thru an eye dropper and she drank some of that and she looks a bit better. I'm not sure if she's egg bound (no gloves in house) but no tail pumping or penguin walk.

I'm really not sure what's going on she is about 3 years of age and I have no idea what breed. Probably a red sexlink or a road island red.

 

[azygous]

Since you don't really know the individual laying history of these hens, it's not going to be easy to guess what's going on. But it does appear she could have reproductive issues. While she may not be egg bound, she could have an infection or worse, egg yolk peritonitis (EYP).

I would start from scratch and cover the bases. Begin by giving her a nice long soak in warm Epsom salt water to clean her up and relax her. At the same time, give her a calcium citrate tablet, minimum of 400mg each day for a few days. If there is an egg or egg material stuck inside, this can help her expel it.

Monitor her behavior for signs of lethargy loss of appetite, and tail held low and pumping that could indicate pain and discomfort. If these symptoms persist, she may need an oral antibiotic.

In addition to the above, check her crop in the morning for fullness. She could also have crop issues that need treating. She may also have scaly leg mites. It's not easy to see since zooming in only reveals a blurry image. Scales lifting up and not flush with the leg indicates the presence of mites and need treating. They can be quite painful.

I further recommend you gather a random stool sample from the flock and have a vet run a fecal float for coccidia and worms. If the others also have scaly leg mites, Ivermectin "pour-on" can treat all of these parasites.

 

[coach723]

If you have a vet that will do a fecal for you to test for internal parasites I would get that done, you can take a mixed sample from a bunch of them to get a good sample (since they are new birds to you), if any of them have them then they have all been exposed. There are also mail in options if you don't have a vet that will do it.
https://www.amazon.com/dp/B000J5SOZ4/?tag=backy-20
Give her (all of them really) a good going over to check for lice/mites. I can't see her legs and feet real well in the pictures, but looks like she may have scaly leg mites.
https://the-chicken-chick.com/poultry-lice-and-mites-identification/
Moving is stressful and the stress can bring out hidden illness in them. At 3 years old reproductive problems are not uncommon. I would monitor her eating and drinking (some electrolites in the water for half the day would help), and pooping. Make sure her crop is functioning properly (it should be empty first thing in the morning before food or water), feel it to see if it's hard, soft and squishy, empty. Check her abdomen to see if it feels bloated at all (compare with others if you are not sure), if it's hard or water balloon like. You can give her some poultry nutri-drench if you have it, to give her a boost. Check for any discharge from the nares or beak or eyes. See if she lays at all in the next few days. Sometimes it's hard to tell from a still picture, but her stance doesn't really look egg bound, more like she just doesn't feel well.

 

[Dft2275]

UPDATE:
Sadly, she passed away during the bath I don't know exactly how she died she either broke her neck trying to escape or had a heart attack or somthing
I found some gloves and felt inside she was egg bound.

 

[coach723]

I'm very sorry for your loss.

 

[azygous]

I'm sorry she died. There was nothing you could have done to save her. People who have a chicken die while they are handling them often think they did something to cause it. When a chicken dies, the wings reflexively flap like mad and then the body goes completely limp. This occurs whether you are present or not when a chicken dies.