After post mor tem,there were clotted blood found in the atrium, blood vessels of the pericardium congested ,which is clearly mark able, thick ,hemorrhage & erosion found in the proventriculus ,gizzard,liver was fragile,blood vessels of the kidney engorged with clotted blood,kidney become pale.This is a laying flock,sometimes frees blood coming out through the vent, I have treated the flock ,but still not able to stop the mortality. Pls help me .what should do?
Thanks Dr. Mazheasear for your suggestion, maybe it was due to mycotoxicosis. Newcastle disease? No, there are other lesions to make a tentative diagnosis that it is ND.