One of my chickens became very ill this afternoon and quickly died. I decided to check out the internal organs to see if I could tell what happened, since I've had several hens die from unknown causes. In the abdomen, I found a severely enlarged mottled liver. I have never seen a liver this large on a chicken that had to weigh maybe 1-2 lbs. I also have never seen this color. I'm sure this has to be evidence of disease of some kind, so I'm hoping all you guys here can help me figure this out so I can stop my chickens from dying. What we saw first when we opened the abdomen. The 3 lobes and gall bladder visible. Removed. Unknown "red stuff" under organs?? Red stuff runs along both sides of spine. What is this stuff? It isn't normally this large on the meat birds we butcher. Any help or guesses would be greatly appreciated.