We have been losing our bergs turkeys (3-4 months old) one at a time here and there (3 of them died overnight over the last 2 weeks). Decided to butcher them before they all died. We noticed most of our turkeys (5 out of 7) had issues (weak or broken feed bags). But also noticed 4 had either green livers with fatty (?) spots or they were red with fatty(?) spots. Trying to upload pics but having a hard time. Fed turkey grower; raised in a pen where chickens used to be, but not with chickens Any ideas what disease/illness causes this?