Rooster with Respiratory issues

Does it look anything like this?

Oral Canker

Canker is a condition mostly associated with pigeons and is caused by a tiny parasite called trichomonas. This parasite is often spread through contaminated drinking water. The parasite causes a ‘yellow button’ of pus to form in your bird’s mouth. This can stop your bird from eating normally leading to weight loss.

What to look for

  • Weight loss
  • Birds picking up food then dropping it
  • A cheese-like plaque in your birds mouth (see photo)
  • A reluctance to eat
Treatment

Treating canker or suspected canker is a job for a vet who will likely prescribe an anti-parasitic medication.
Prevention

Ensure that your birds' drinking water is changed daily. Try to keep the drinkers in the chicken house to discourage wild birds from sharing your birds’ water.
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Below are very graphic pics of yellow plaques (pus or caseous lesions) in various respiratory diseases, common in MG, coryza, ILT, and wet fowl pox:

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yellow plaques of ILT virus in throat of chicken

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Yellow plaques in trachea of chicken with wet fowl pox

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post mortem picture of sinus infection caseous deposit or pus (skin is removed to show) in infectious coryza

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yellow caseous deposits in trachea and bronchus from mycoplasma (MG) infection.
 
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I took a couple pictures. I think likely yes, but not as bad as those pictures. I'm trying to attach them now.
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Looks like canker? Maybe not as bad as the ones you passed along, however by the way he's breathing it could be much worse further down his throat where I can't see.
 
I'm seeing the yellow patches, but don't know whether it is canker or not. Do you have an avian vet or a regular vet who sees chickens? How does his beak smell? Canker and some other infections can have a horrible odor, I'm told. Canker or trichmoniasis, is a protozoan infection, cantagious, and makes carriers of the flock. It commonly grows large yellow lesions in the mouth and throat and can eventually block the airway. Metronidazole (FishZole, Flagyl) and ronitazole are commonly used to treat it. These can be obtained from a vet, or online, but that can take days and days to get. Dosage of Fish Zole is 125 mg twice a day given orally in back of throat. I am going to ask someone else to take a look to help you.
 
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Casportpony, another BYCer is more familiar with these things than I am, so I have asked her to look at this thread. His color looks awful, and I'm sorry. It can be difficult to know what is farther down the throat or into the respiratory tract which could be affecting him. Fungal infections such as aspergillosis, can move into the air sacs, heart, and elsewhere if they have it for some time.
 
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Thanks for the info. Taking him to the vet unfortunately isn't possible. I may try Fishzole if I can get a hold of it quickly. Otherwise we may have to cull. We have one other hen and getting 10 more at the end of April. Hate to do that to this poor guy, but hate to see him looking so miserable.
 
Sorry, you were posting that as I was posting mine. If a vet is out of the question you could try giving him a massive dose of Tylan 50.
 

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