Causes of mortality of pigs in the groups of fattening

In 2016-2018, the authors performed an autopsy on 91 pigs from fattening groups on pig farms in a number of areas of the European part of the Russian Federation. This article highlights the results of autopsy and additional laboratory tests. The aim of the investigation was to improve pathological diagnosis and differential diagnosis of swine diseases. The task of the publication is to familiarize readers with the results of diagnostic studies and, in particular, with the images of characteristic pathological changes in modern infectious and noninfectious diseases of pigs in fattening groups. The object and material of the study was 91 pigs from fattening groups of pig farms, where the authors conducted an autopsy together with specialists of farms. Postmortem examination was applied the method of "complete evisceration" G. V. Shor. For bacteriological study on streptococcosis of 9 pigs selected a pathological material. the heart and fluid from the heart shirts. For PCR on circovirus took lymph nodes from 2 pigls. From 4 pigls who died from pneumonia of the lungs sampled for PCR on pathogens of enzootic pneumonia (swine mycoplasmosis), actinobacillus pleuropneumonia, gripp and reproductive -respiratory syndrome of pigs. As a result of pathoanatomic diagnostics in the farm, infectious and noninfectious diseases were found in the fattening groups in pigs. infectious diseases in 44.0% of pigts, noninfectious diseases - in 56.0%. Among the infectious diseases identified streptococcosis in 34 pigs (in 37.4% of all the exposed pigs) and circovirus - 6 pigs (6.6% of all the exposed pigs). Among noninfectious diseases, dominated by mycotoxicosis, volvulus, erosive urocystitis and stomach ulcers. The most common cause of death in feeding groups was streptococcosis. Many pigs who fell from streptococcosis and erosive ulcerative urocystitis showed signs of cannibalism in the form of extensive lacerated wounds in the area of tail, anus, and perineum - the obvious gate of microorganisms.

поросята, болезни, диагностика, вскрытие, патологоанатомические изменения , pigs, diseases, diagnosis, autopsy, pathological changes

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