I'm so sorry for your loss. Has anyone thought to contact a university that has a Poultry science department or a vet school where people send their animals for necropsy? Just wondering if someone at one of these institutions would brainstorm with you and maybe fill in some blanks? I am an ANSCI major from purdue (going on 10yrs ago!) And remember professors talking about helping people who were seeing strange things in cattle. Just a thought