Causes for wheezing and sneezing

[WannabeHomsteader]

It doesn’t hurt to worm her with either SafeGuard Liquid Goat Wormer 1.25 ml orally or Valbazen 0.5 ml orally and repeat those in 10 days. You can also use the SafeGuard for 5 consecutive days for capillary and gapeworms, but Valbazen gets those with the 2 doses. Toss any eggs for 14 days from last dose. Is it very hot there? Some hens will breathe hard due to the heat, being overweight, or if they may be getting water belly.

No actually, this summer's temps have been pretty mild. Where I live, we often reach triple digits right about now. It's been well below that lately. I'll try worming and see if they improve.

I don't think she's overweight - in fact, her keel bone feels a little sharper than it ought, but not really bad.

 

[Eggcessive]

It is sometimes hard to figure out why they have respiratory problems. Mold, dust, hot temps inside the coop, and dusty feed may be the usual culprits. Respiratory diseases (viruses, bacterial, or fungal) and worms can also add to those problems. Good overhead air ventilation is helpful. I hope that she gets better.

 

[WannabeHomsteader]

Thanks for all your input. If it helps, here are photos of coop/run. The setup may look small, but I believe it meets sq footage requirements for my 2 birds, and there's plenty of fresh air in the run. The extra run/coop on the side is a very recent build for my bantam pullets, and there is no access from one run to the other.

 

[WannabeHomsteader]

After doing some more reading, I think it COULD be MG. She is not getting any better, so I'm gonna start with Denagard and see if she improves.
I also have pullets that are housed right next to this sick hen, separated by hardware cloth. She's been this way for quite some time without me realizing she was sick (I didn't know what I didn't know), and I think separating her would a) be pointless and b) stress her out more. So I am just going to leave her in the backyard and treat there. Some questions I have now:
- Is it common to have an MG infection WITHOUT eye bubbles, facial swelling, or nasal discharge? My hen doesn't have any of those, but she's had a slow, steady progression downhill with prominent rales/wheezing, signs of lack of oxygen, and frequent sneezing.
- Should I also treat the pullets with Denagard, even if they're not currently having symptoms?
- Would it help to do a preventative dose with the pullets and do a treatment dose with my sick hen?
- If I treat the pullets, should I dilute their dosage further because they are bantams?