Pathomorphorological changes during associative course of infectious rhinotracheitis-pustular vulvovaginitis and colibacteriosis in heifers

УДК 619:579.62
DOI 10.33861/2071-8020-2022-5-13-16

Mironova A.A., Chekrysheva V.V., Mironova L.P., Khamidullin T.Sh., Suleymanov S.M.

Summary. Due to the emergence of favorable conditions for numerous passages with a high concentration of livestock, often not observing basic sanitary and hygienic norms and rules by livestock owners, the microbiological background of the operated premises, microbial contamination of the mucous membranes of open cavities of animals significantly changes. Under these conditions, among the assembled livestock, the spectrum of pathogenic microorganisms may include various viruses, bacteria, mycoplasmas and chlamydia, which inevitably leads to their associative interaction and the appearance of mixed infections. Often, in the complex pathology of cattle, the main role is played by conditionally pathogenic (factorial) microflora, in particular, Escherichia spp. This work describes pathomorphological changes in the associative course of infectious rhinotracheitis -pustular vulvovaginitis and colibacteriosis in the large horned cattle. During the autopsy of dead and stillborn calves from heifers with this association, 15 main pathoanatomical diagnoses corresponding to changes in organs and tissues were established: serous or catarrhal conjunctivitis; acute serous or catarrhal rhinitis, laryngitis, tracheitis; necrotic ulcerative laryngitis, tracheitis; hemorrhagic diathesis; acute serous lymphadenitis; atelectasis of the lungs and edema of interstitial connective tissue; acute serous splenitis (septic spleen); granular and fatty degeneration, hemorrhages in the liver; acute serous nephritis; hyperemia and hemorrhages under the epi- and endocardium; acute alterative myocarditis; acute catarrhal or hemorrhagic gastroenterocolitis; hemorrhagic or acute catarrhal with striated hemorrhages proctitis; acute catarrhal vulvovaginitis and balanoposthitis; hyperemia and swelling of the brain and meninges; adhesive serous placentitis.

Keywords: parasitocenosis, associative diseases, conditionally pathogenic microflora, clinical and morphological forms of the disease, pathomorphological changes, viral and bacterial association, infectious rhinotracheitis, colibacteriosis, pathoanatomic autopsy, pathoanatomic diagnoses.

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Author affiliation:

Chekrysheva Viktoria V., Ph.D. in Veterinary Medicine, director of the North Caucasian Zonal Scientific-Research Veterinary Institute - branch of the Federal Rostov Agrarian Scientific Center; 0, Rostovskoe hgw., Novocherkassk, Rostov region, 346421; phone: 8-918-5943886; e-mail: veterinar1987@mail.ru.

Mironova Lyudmila P., D.Sc. in Veterinary Medicine, professor of the Department of Therapy and Propaedeutics of the Don State Agrarian University; 24, Krivoshlykova st., Persianovsky vllg., Oktyabrsky district, Rostov region, 346493; e-mail: dongau@mail.ru.

Khamidullin Timur Sh., post-graduate student of the Department of Therapy and Propaedeutics of the Don State Agrarian University; 24, Krivoshlykova st., Persianovsky vllg., Oktyabrsky district, Rostov region, 346493; e-mail: dongau@mail.ru.

Suleymanov Suleyman M., D.Sc. in Veterinary Medicine, professor, professor of the Department of Obstetrics, Anatomy and Surgery of the Voronezh State Agrarian University named after Emperor Peter I; 1, Michurina st., Voronezh, 394087; e-mail: suleimanov@list.ru.

Responsible for correspondence with the editorial board: Mironova Anna A., D.Sc. in Veterinary Medicine, chief scientific researcher of the North Caucasian Zonal Scientific-Research Veterinary Institute - branch of the Federal Rostov Agrarian Scientific Center; 0, Rostovskoe hgw., Novocherkassk, Rostov region, 346421; phone: 8-903-4718275; e-mail: aa_mironova@mail.ru.