Mereks

Oh, sorry to hear that. It's been a rough go for you! :hugs

I'm sorta dumb for asking if you looked into black head.. since I don't know anything about that or turkey MDV.. my friend that had it hit her chickens this year did NOT have it show up her turkeys so far and doesn't have any vaccinated birds that we're aware of. I know you have a pretty good grasp on things but just in case it's a possibility and somehow got missed??

There are many things that can mimic Marek's including lymphoid leukosis, malnutrition/absorption, equine encephalitis, some spleen infections, and more.. I don't even know how to identify a spleen yet. I've looked at a few livers, though never a Marek's symptom bird, just at harvesting which so far look normal.

Forget fear monger google, lets reach for truth to the best of our ability..

Merk VET manual is available in a "pet/consumer version" if you desire less information, but is one of my favorite resources.. noting Mdv is listed under neoplasms..

https://www.merckvetmanual.com/poultry

Another good resource.. not sure if it will help with this but it's solid information..

Avian Disease Manual 7th Edition

:fl
Thanks.

I didn't look into black head since I was under the impression chickens couldn't get it, just spread it
 
Yeah, he didn't show the bumps like I thought they got, but I'll look into it now. If it is, is he able to be processed if we have to cull him?

I try to have a use for the ones I cull so that they aren't just wasted
 
So update, ended up doing a necropsy on another hen (sheep stomped her down) and she was clear. We're thinking it was something that poisoned them since all the affected birds were in the same group that wandered off the property and we haven't lost anyone else since my last post
 

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