Actually, it was really useful for me to read this history. It provides a lot of context for your hens.Thank you. However, Margo’s necropsy said she DID have Marek’s. It said she did NOT have tumors, but evidence of a “background infection” based on microscopic review of the nerve caps. The thought was her Merek’s compromised her immune system, allowing the bacterial infection from dorsal egg yolk peritonitis.to go septic.(On a side note, they did not diagnose egg yolk peritonitis until microscopy revealed egg yolk protein.) Bagheera died two weeks later with no mention of Marek’s in the necropsy. However, her cause of death was obvious, fatty liver hemorrhage, and there was no microscopy done that I can tell. Some good news is that Ruby was negative for Avian Flu and Bagheera was negative for Infectious Bronchitis.
Since not not one of three necropsies has had Marek’s tumors, I feel I still don’t know for sure if it’s in my flock. Maybe I should just trust thst it’s there based on Margo’s necropsy.
We know Margo and Rusty had egg yolk peritonitis. I suspect Dorothy did, too, since she was mostly Leghorn, laid soft eggs, and presented the same as Margo (Leghorn), like she had a septic infection (I was unable to get a necropsy done based on the timing of her death). As yiu know, Ruby had cancer.
I think it may mostly come down to poor genetics of hatchery stock. Bagheera’s death was likely my fault, as she had abundant fat stores.
Sorry about the long post. Just thinking it all through. Thanks for allowing it!