It is good to look for the oviduct which will be at the bottom near the vent, for any sign of cancer or tumors. Sometimes lash egg material will cause it to become very large. When I have done necropsies, I usually don’t know what I will find. I have seen evidence of fatty liver hemorrhagic...
I am an amateur where necropsies are concerned. Was there a lot more fat inside that you found than you thought you would have?
From what I see, the two dead ended parts of the intestines were the 2 ceca, which are pouches between the small and large intestines where food ferments before moving...