Histological changes in the immunocompetent organs of turkeys under the influence of the turkey hemorrhagic enteritis virus

УДК: 616.98:578.826.1-091.8:636.592
DOI 10.33861/2071-8020-2026-1-19-21

Original Empirical Research

Kraskov D.A., Sidorenko K.V.

Abstract. One of the most common and dangerous diseases in turkey breeding is hemorrhagic enteritis of turkeys (GEI). It is a highly contagious, immunosuppressive, infectious disease of turkeys and pheasants caused by a DNA-containing virus from the second group of avian adenoviruses. To carry out laboratory diagnostics in the study of morphological changes caused by the GEI virus, veterinary specialists need to have up-to-date relevant knowledge on this problem. Unfortunately, there are practically no modern works on this issue in the Russian literature.

Objective: to study microscopic changes in the immunocompetent organs of turkey under the influence of the GEI virus.

Materials and methods of research. The material was selected from two groups: the control group and the group infected with the strain of the GEI virus ‘DK-24’. Organ fragments were collected on the 6th day after infection and fixed in neutral 10.0% formalin for 10 days. Next, the organs were washed under running water, and the wiring and filling were carried out according to a standard protocol. The obtained preparations were stained with hematoxylin Gill and 1.0% alcohol eosin. Microphotography was performed using a Levenhuk M500 BASE Camera on a Levenhuk MED Series microscope at 40-, 100- and 400-fold magnification.

Research results and their discussion. Based on the data obtained, it can be concluded that the main detected changes were numerous small foci of colorless tissue structures in all presented immunocompetent organs of the infection group.

Conclusion. The main changes detected were numerous small foci of colorless tissue structures in all the immunocompetent organs of the infection group.

Keywords: hemorrhagic enteritis of turkeys, immunosuppression, histological changes, immunocompetent organs.

References:

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Author affiliation:

Sidorenko Karina V., Ph.D. in Veterinary Medicine, Assistant of the Department of Biology, Ecology and Histology of the Saint-Petersburg State University of Veterinary Medicine; 5, Chernigovskaya st., Saint-Petersburg, 196084; phone: 8-9315-346540; e-mail: capricorn26.12.94@yandex.ru.

Responsible for correspondence with the editorial board: Kraskov Dmitry A., Assistant Department of Epizootology named after V. P. Urban of the Saint-Petersburg State University of Veterinary Medicine; 5, Chernigovskaya st., Saint-Petersburg, 196084; Junior Scientific Researcher of the Department of Virology of the All-Russian Scientific Research Veterinary Institute of Poultry Farming; 48 a, Chernikova st., Lomonosov, Saint-Petersburg, 198412; phone: 8-9214-152266; e-mail: kraskov-00@bk.ru.

Authors’ Contribution:

Kraskov D. A.: supervision, conceptualization, investigation, methodology.

Sidorenko K. V.: investigation, visualization.

Conflict of Interest Statement: the authors declare no conflict of interest.