Paralyzed Hen?

[eas2]

On Saturday morning found a 3 year old hen on the ground under the roosts. Vaccinated for Mark’s as a chick (at least I paid for Mareks vax). Been hand feeding, cooked egg yolk with Vit.B & water with added Hen Boost. Still no improvement!

Has anyone experienced anything else that causes this? She feels slightly underweight but otherwise healthy!

 

[Crazy Maizie]

Is she separated from the others? Its my understanding that (although rare) they can still get mareks even with the vaccine. But, usually it shows up before 3 yrs.
https://pubmed.ncbi.nlm.nih.gov/15757475/
https://www.pbs.org/newshour/scienc... that,spreading Marek's to unvaccinated birds.
Have you introduced any new birds to the flock recently?

 

[Kiki]

The vaccine doesn't actually prevent the disease so she may have it.


Are you in the United States?

 

[eas2]

Yes, I’m in California..
she looks really well except for not being able to use her legs ?

 

[eas2]

Is she separated from the others? Its my understanding that (although rare) they can still get mareks even with the vaccine. But, usually it shows up before 3 yrs.
https://pubmed.ncbi.nlm.nih.gov/15757475/
https://www.pbs.org/newshour/science/tthis-chicken-vaccine-makes-virus-dangerous#:~:text=But a chicken virus that,spreading Marek's to unvaccinated birds.
Have you introduced any new birds to the flock recently?

we got 4 6 wk old chicks last Tuesday (also vaxed) they are separated

 

[eas2]

Is she separated from the others? Its my understanding that (although rare) they can still get mareks even with the vaccine. But, usually it shows up before 3 yrs.
https://pubmed.ncbi.nlm.nih.gov/15757475/
https://www.pbs.org/newshour/science/tthis-chicken-vaccine-makes-virus-dangerous#:~:text=But a chicken virus that,spreading Marek's to unvaccinated birds.
Have you introduced any new birds to the flock recently?

Thanks for the thread, pretty depressing read though!

 

[eas2]

Thanks to you two for helping. Tomorrow our sweet hen, that lays the darkest brown egg is going to UC Davis to be euthanized & a necropsy performed. I’ll let you know the results…

 

[Crazy Maizie]

Awe. Sorry to hear that, but at least you will have answers.

 

[eas2]

Necropsy Findings on Paralyzed Hen:

A 3-year-old hen, reproductive carcinoma and carcinomatosis
1. Ovary and oviduct: Carcinoma
2. Peritoneum: Carcinomatosis
3. Peritoneum: Multifocal caseonecrotic peritonitis and ectopic egg

 

[eas2]

Thank goodness it was not a virus…but poor girl!
Something new to help others when faced with a paralyzed hen!