Thank you for the good information. I didnt know there were different types of tumors. You sound like an expert :)
If oviduct tumors are common, how do so many hens survive to 5-8 years old? Are there breeds that are more resistant to cancer? Could it be related to diet?
I lost 3 out of 5 leghorns to ovarian cancer this year. Two were diagnosed by an avian vet and euthanized after months of supportive care. Third one filled with fluid and died before I could treat her. Now my 4th hen is showing the same symptoms (stopped laying, bloated belly).
Could this be...