Katieskerlong

Chirping
Mar 8, 2025
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Hi everyone. I’m just gonna jump straight into this. I had a necropsy done on a chicken who dropped dead after going lame and struggling to breathe. I’ve been paranoid about MG and coryza for a while so I figured let’s just send her off to see what they say. Initially the report came back and they suspected mareks. I said to go through with doing further testing to guarantee and so they ordered a histopathology and was determined no mareks. I have a chicken who’s face has randomly swelled up so I posted all of this information and asked about the random swollen face and was told my report shows zero lab work or testing was actually done I’m extremely confused? What do y’all think? I don’t know what’s missing I guess..
 

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The second image is your lab work, the histopathology report. They took samples from the lungs, brain, heart, liver, kidneys, spleen, and sciatic nerve and looked at them under a microscope. It says there were no significant lesions (abnormal tissues/cells) anywhere but the lungs. The samples from the lungs showed bronchitis, emphysema, and congestion. Bloodwork generally isn't done in necropsies because by the time they get the body the blood has coagulated.

Sometimes necropsies are a wealth of information, sometimes they leave us with just as many questions as we had before. Unfortunately in this case the only thing the necropsy tells us is that she had tapeworms at the time of death, though the report mentions that it's a 'small number' of worms so it's an incidental finding and not a cause of death.
 
Pk
The second image is your lab work, the histopathology report. They took samples from the lungs, brain, heart, liver, kidneys, spleen, and sciatic nerve and looked at them under a microscope. It says there were no significant lesions (abnormal tissues/cells) anywhere but the lungs. The samples from the lungs showed bronchitis, emphysema, and congestion. Bloodwork generally isn't done in necropsies because by the time they get the body the blood has coagulated.

Sometimes necropsies are a wealth of information, sometimes they leave us with just as many questions as we had before. Unfortunately in this case the only thing the necropsy tells us is that she had tapeworms at the time of death, though the report mentions that it's a 'small number' of worms so it's an incidental finding and not a cause of death.
Okay… dang. I’ve stayed so stressed about MG or coryza because my goal is to breed my birds. I really thought this would give me clarity.
 
a cbc and general chemistry (typical blood work) won’t tell you much as far as what killed your chicken, there are literally thousands of pcr, elisa, toxicology tests, cultures etc etc that can be done but all require specific specimens and significant cost to run. If they had found anything interesting on the necropsy they would have run further tests but ‘no significant findings’ is a pretty common results, many diseases leave few signs or just cause general lung or liver or whatever lesions. Diagnosing a disease is like trying to solve a murder, sometimes there are lots of clues and sometimes you never find the killer.
 
a cbc and general chemistry (typical blood work) won’t tell you much as far as what killed your chicken, there are literally thousands of pcr, elisa, toxicology tests, cultures etc etc that can be done but all require specific specimens and significant cost to run. If they had found anything interesting on the necropsy they would have run further tests but ‘no significant findings’ is a pretty common results, many diseases leave few signs or just cause general lung or liver or whatever lesions. Diagnosing a disease is like trying to solve a murder, sometimes there are lots of clues and sometimes you never find the killer.
I can’t do anything about it now I guess. From what I understand diseases like MG, Mareks, etc are in as much as 90% of flocks and NPIP certified doesn’t even require MG to be tested for. Kindve shocking but seeing as majority if not all of my birds come from hatcheries or breeders and they seem to have something, I shouldn’t be so surprised
 
about 10 years ago a vet took blood from a live roo and found out he had IB and not MG. other vets at that time just did necropsies, no blood test from the living animals. try to find one who is willing to cooperate.
 
I can’t do anything about it now I guess. From what I understand diseases like MG, Mareks, etc are in as much as 90% of flocks and NPIP certified doesn’t even require MG to be tested for. Kindve shocking but seeing as majority if not all of my birds come from hatcheries or breeders and they seem to have something, I shouldn’t be so surprised
Keep in mind that MG and Coryza are highly contagious to other birds. You would be seeing symptoms in other birds.
Not every symptom or ailment a chicken has is going to be a respiratory disease nor Marek's related.
 

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