The combination of viral-induced damage to endothelial cells, consumption of coagulation factors and platelets, and the liver' s reduced ability to replace coagulation factors contribute to the hemorrhagic tendency. The blood and urine findings in infectious canine hepatitis. Pathology of Domestic Animals. A herd of 150 cows has had 5 aborted fetuses at 7-8 months gestation in the last two weeks. Cows appear normal prior to and after aborting.
Nutrition includes grass hay and a urea based protein supplement.
Typical autolysis with hemoglobin imbibition of all tissues. The lungs were depressed, red and firm. Fibrinous hemoglobin stained exudate was present in the trachea. The placenta was thickened, opaque and autolyzed. Microbiology - Actinomyces pyogenes was isolated from the lung.