Offshoreorca
Whale Whisperer
She is one of my eggs, yes, hatched from my flock. yes.
I got a beautiful rooster in August from a local lady, but he was in quarantined for over 30 days. 5 weeks actually- in a Different building. Its not from him I'm sure.
I dont think Mareks is an overnight thing.
Any vaccinated or hatchery bird can be a carried and/or spreader without ever showing symptoms, so this is why they recommend not to mix vaccinated and unvaccinated birds. It takes 3-4 weeks for the virus to develop in a bird, but symptoms can onset suddenly like this. Timeline is right, but do you know if the introduced roo was vaccinated? Of course, this is only worse case scenario as this can also be the result of a vitamin deficiency or several other causes.