Veterynarna biotehnologija – Veterinary biotechnology, 2016, 29, 213-219 [in Ukrainian].
PROKHORIATOVA O.V., e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., KOLCHYK O.V., e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
NSC "Institute of Experimental and Clinical Veterinary Medicine"
BABKIN M.V., e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., HODOVSKYI O.V., e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
State Scientific Control Institute of Biotechnology and Strains of Microorganisms
PORCINE EPERYTHROZOONOSIS CLINICAL MANIFESTATIONS ANALYSIS
Introduction. Formation of animal livestock with different bacterial background, using unchecked breeding material and drastic antibiotic overuse lead to exacerbation of epizootic situation. Porcine eperythrozoonosis is an infectious disease of swine which is caused by Mycoplasma suis and causes significant losses.
Goal of the work. Identification of pigs with porcine eperythrozoonosis clinical signs in pig-breeding farms in Ukraine and carrying out laboratory research.
Materials and methods. Epizootic examination of 10 pig farms in different regions of Ukraine. 86 clinical and pathological material samples were examined in the laboratory using serological, virological, immunological methods, bioassay and PCR.
Results of research and discussion. Porcine eperythrozoonosis clinical signs included anemia and lethargy of swine, skin and mucous membranes paleness, short-term fever (up to 42.5° C). Rare cases of jaundice and stunting are observed. After a few days the symptoms have disappeared. In the weaned piglets group chronic disease occurred as well as mass necrosis of the ear tips. Autopsy has shown typical spleen inflammation, kidney adhesions and cardiac changes; presence of fluid and fibrin in cavities along with hepatisation areas in the lungs were detected. With help of laboratory tests following pathogens were detected: Mycoplasma suis in 55% of cases, Mycoplasma suis in association with Pasteurella multocida serotypes A and D in 30% of cases, Actinobacillus pleuropneumonia in 10% of cases and Mycoplasma huopneumonia in 5% of cases against the background of RRSS, PCV-2 and PVS circulating, which are known to be immunosuppressive agents. Microscopy has shown mycoplasma to be round, oval, rod-shaped or annular shape. Some cells were aggregated in the small groups. Microscopy of the parasite in blood smears is only possible during the acute phase of the disease in a limited period of time. It was not detected in animals with the latent form of the disease.
Conclusions and pospects for further research. It was found that clinical manifestation of porcine eperythrozoonosis in swine is exacerbated by bacterial and viral microflora. The data will be used for the development of the mixed viral-bacterial infections prevention.
Keywords: eperythrozoonosis, associated course, mycoplasmosis, immunodeficiency, pathogen identification, clinical signs.
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