Morphopathological Quantification of Hepatopathies in Necropsied Swine

Abstract

The aim of this study was to identify and describe macrospcopic and microscopic liver lesions in pigs necropsied at the forensic discipline during 2 years of study; assessing the hepatopathies prevalence, based on morphopathological criteria (circulatory disorders, dystrophic processes, inflammatory and tumor processes). The study was conducted in the period November 2012 - 90 October 2014. It involved necropsies of 90 swine corpses, aged 3 weeks - 6 months, from intensive swine breeding systems, to elucidate the cause of death. After necropsy and thorough macroscopic examination of the liver and gall bladder samples were taken to carry out microscopic examination. Of the total of 90 necropsied pigs, 65 cases were diagnosed macroscopically and microscopically with hepatopathies (72.2%). In the pigs necropsied during the study the following were diagnosed, in decreasing order: dystrophic liver diseases (51.1%), inflammatory liver diseases (17.7%), circulatory liver diseases (2.2%) and liver necrosis (2.2%). The most numerous dystrophic liver diseases were lipidic hepatosis followed by protidic hepatosis and pigmentation hepatosis . The inflammatory liver diseases were represented by the parenchymal hepatitis or acute toxic hepatitis, and fibrous purulent hepatitis. Inflammatory liver diseases, histologically affect all structures: hepatocytes, blood vessels, bile ducts and the fundamental substance- predominantly collagen. Tumor processes have not been identified because they do not have time to express morphologically due to the short economic life that this species has.