Hen keeps sneezing.

[Brahmachicken240]

one of my blue buff columbian Brahma hens has been sneezing all day since i let her out.
She also layed a very thin shelled egg yesterday.
Eating/ drinking and running around with the others as usual. Any ideas on what she has and what I can do to help her ? Should I remove her ?
I’m pretty sure I heard another hen sneeze aswell
I’m thinking it’s some sort of respiratory infection.

Poop pics @casportpony

Video of her sneezing.

 

[Brahmachicken240]

They are fed growers mash and sometimes layers ( when I’m out of oyster shells)
Their Coop gets cleaned out once a week and they free range around the feild during the day.

 

[Brahmachicken240]

@Wyorp Rock @Eggcessive

 

[Brahmachicken240]

Just checked her there before I closed them in, beak and nostrils are clear but she’s still sneezing.
I have put her in a separate coop for the night.

 

[Wyorp Rock]

Have you looked inside her beak just to make sure there's no stuck feed or that her nostrils are not clogged up?
Got good air flow in the coop? (I like your coop!)

If you feel like it's a respiratory illness, whatever she has, the others are likely exposed. It's up to you whether you want to separate her out or not. If it will stress her greatly, then it may be better to leave her and monitor her symptoms.

I don't know what you have access to as far as antibiotics. If her symptoms worsen, the sneezing becomes more frequent, you see mucous, watery/bubbly eyes or facial swelling antibiotics may help. Mycoplasma (bacterial) responds well to treatment, while Infectious Bronchitis (viral) usually has to run it's course, but medication can of course help with secondary infection (supportive care).

Tylosin, Oxy/Doxy cycline can be used for treatment. Denagard (Tiamulin) is an effective treatment for Mycoplasma.

 

[Eggcessive]

If she is sneezing every few minutes, and you start to see others sneezing it may be infectious bronchitis, a virus which is the most common respiratory disease in chickens. It lasts about a month, and you may see a reduction in eggs, or abnormal egg shells such as thin or wrinkled shells. Some chickens may have reproductive or kidney problems afterward. Some may develop secondary infections. Chickens can be carriers for up to a year after I, so you might want to avoid hatching or adding new chickens for that time. If you see eye bubbles, swelling of the face or eyes, there may be something else going on, such as MG or others. Here is some reading about it and other diseases:
http://www.poultryhub.org/health/disease/types-of-disease/infectious-bronchitis/

https://edis.ifas.ufl.edu/ps044

 

[Brahmachicken240]

If she is sneezing every few minutes, and you start to see others sneezing it may be infectious bronchitis, a virus which is the most common respiratory disease in chickens. It lasts about a month, and you may see a reduction in eggs, or abnormal egg shells such as thin or wrinkled shells. Some chickens may have reproductive or kidney problems afterward. Some may develop secondary infections. Chickens can be carriers for up to a year after I, so you might want to avoid hatching or adding new chickens for that time. If you see eye bubbles, swelling of the face or eyes, there may be something else going on, such as MG or others. Here is some reading about it and other diseases:
http://www.poultryhub.org/health/disease/types-of-disease/infectious-bronchitis/

https://edis.ifas.ufl.edu/ps044

Oh no, I certainly hope that’s not it.
Was planning on breeding them this year and already have 13 eggs under a broody hen.

 

[Brahmachicken240]

Have you looked inside her beak just to make sure there's no stuck feed or that her nostrils are not clogged up?
Got good air flow in the coop?
.

Nostrils and beak are clear.
Yes, there’s a vent at the side.

 

[Brahmachicken240]

Also forgot to mention she was breathing out of her mouth a lot aswell. She did eat but she didn’t spend near the amount of time she usually would around the food dish, she was up on the roost in the coop as usual but I thought it would be best to separate her for the night.

 

[Wyorp Rock]

I also cleaned their coop out before I closed them in for the night, just to keep it as clean as possible.
The other week it was a guinea that got hit by a car, now this week we have a sick chicken

Also forgot to mention she was breathing out of her mouth a lot aswell. She did eat but she didn’t spend near the amount of time she usually would around the food dish, she was up on the roost in the coop as usual but I thought it would be best to separate her for the night.

Let's hope it's not a respiratory illness.
Just to cover all bases here, she's breathing out of her mouth? Panting, labored breathing?
When was her last egg? Any bloat in the abdomen?
Crop empty in the morning?
Is she fat?