МАКРОСКОПІЧНІ ЗМІНИ ПРИ ПРОЛІФЕРАТИВНІЙ ЕНТЕРОПАТІЇ СВИНЕЙ

Abstract

Infectious diseases cause significant economic damage to the industry and one such disease is proliferative enteropathy.So scientists have estimated that, for example, in Australia, the losses amount to dollars 20 per 1 pig, and in the United States losses from proliferative enteropathy in pigs was dollars 20 million annually.Symptoms and signs of the disease are known to scientists for a long time. But only in 1974, scientists discovered a bacterium that multiplies rapidly abnormally in the cells, it has been called Lawsonia intracellularis. And it is proved that it is the causative agent of the disease, in 1993.Recently we discovered that the infection in pig farms tend to widespread. According to the results of serological tests in different countries of Lawsonia intracellularis it is 60 – 90% of the herd of swine. Other authors have reported that around the world are infected with this microorganism is from 30% to 100% of herds of pigs. Serological studies have established that Lawsonia intracellularis in the United States recorded in 96% of the herd of swine. This is facilitated by the low infectious dose of pathogen isolation from faeces of a large number of bacteria, sustained release of the pathogen in the faeces and survival of Lawsonia Intracellularis in the environment for at least 2 weeks.In our state proliferative enteropathy pigs hardly been studied. In Ukraine, proliferative enteropathy pigs was detected in 15 pig farms 7 areas. In Russia, the disease is called a new and poorly understood, but some scientists call it lavsoniosis.Therefore the aim of this study was to examine in more detail the macroscopic changes at proliferative enteropathy pigs.To achieve this goal the following objectives: to conduct mortem examination of dead pigs of proliferative enteropathy, examine macroscopic changes in the internal organs of the disease, and a detailed description of the macroscopic changes in the internal organs, which they were not previously documented.The material for the study were 10 corpses of pigs killed by proliferative enteropathy. Mortem examination was carried out in spinal position by partial evisceration in a common sequence at the Department of Pathological Anatomy of the National University of Life and Environmental Sciences of Ukraine.At postmortem macroscopic changes at autopsy proliferative enteropathy in pigs were the following: thickening of the walls of the caudal part of the jejunum, ileum, cecum and colon intestine, which was accompanied by a distinct narrowing of the lumen. Swollen lymph nodes were recorded hemorrhagic thin, blind and colon. In mild venous congestion and edema and dilation of the heart and congestive hyperemia of the liver.