Bovine chorioptosis (clinical case)

УДК 619:616.995.428:636.2
DOI 10.33861/2071-8020-2025-4-17-20

Original Empirical Research

Poryvaeva A. P., Krasnoperov A. S., Tomskikh O. G., Oparina O. Yu., Abramov A. V.

Abstract. The article describes a clinical case of chorioptosis in Holstein cows aged 4-5 years with milk productivity of 38-40 l. The microclimate parameters of a livestock building for keeping dairy cows were measured and analyzed (temperature, humidity, illumination, air velocity and toxic gas content in the air). It was established that the microclimate conditions were favorable for the survival and development of Chorioptes bovis ticks. The content of toxic gases in the air of the livestock building complied with the norm. The results of the clinical examination of animals are presented. As well as complex laboratory studies of bio-samples from cows - blood, blood serum, superficial scrapings from skin lesions. It was found that the proportion of cows with clinical symptoms of chorioptosis was 12% of the total number. Contained in the inspected livestock premises. In animals, skin lesions were observed covering an area of 10 to 25 cm2. At the root of the tail and in the area of the milk mirror dorsal to the udder. During acarological studies, carpet mites of the species Chorioptes bovis were discovered. Hemodynamic changes were recorded in cows with a laboratory-confirmed diagnosis of ‘Chorioptosis’. Decreased hemoglobin content. Thrombocytopenia associated with synthesis disorders and cell destruction processes. Moderate lymphocytosis and moderate eosinophilia. Against the background of the inflammatory process, a decrease in the body’s protective functions was recorded in animals. Assessment of the biochemical profile indicated a deficiency of protein components, electrolyte imbalance and the development of dehydration.

Keywords: chorioptosis, Chorioptes bovis mites, skin mites, ectoparasites, cattle, lactating cows, microclimate, acarological studies, immunohematological studies, biochemical studies.

Author affiliation:

Poryvaeva Antonina P., D.Sc. in Biology, Leading Scientific Researcher of the Department of Monitoring and Forecasting of Infectious Diseases of the Ural Federal Agrarian Scientific Research Centre of the Ural Branch of the Russian Academy of Sciences; 112 a, Belinskogo st., Yekaterinburg, 620142; phone: 8-922-1122095; e-mail: app1709@inbox.ru.

Tomskikh Oksana G., Ph.D. in Veterinary Medicine, Senior Scientific Researcher of the Department of Monitoring and Forecasting of Infectious Diseases of the Ural Federal Agrarian Scientific Research Centre of the Ural Branch of the Russian Academy of Sciences; 112 a, Belinskogo st., Yekaterinburg, 620142; phone: 8-906-8087191; e-mail: tomskiy1982@mail.ru.

Oparina Olga Yu., Ph.D. in Veterinary Medicine, Senior Scientific Researcher of the Department of Ecology and Non-Infectious Pathology of the Ural Federal Agrarian Scientific Research Centre of the Ural Branch of the Russian Academy of Sciences; 112 a, Belinskogo st., Yekaterinburg, 620142; phone: 8-912-6011634; e-mail: olia91oparina@yandex.ru.

Abramov Aleksandr V., Ph.D. in Veterinary Medicine, Associate Professor of the Ural State Agrarian University; 42, Karla Liebknekhta st., Yekaterinburg, 620219; phone: 8-905-8053306; e-mail: abramov_78@bk.ru.

Responsible for correspondence with the editorial board: Krasnoperov Aleksander S., Ph.D. in Veterinary Medicine, Senior Scientific Researcher of the Department of Ecology and Non-Infectious Pathology of the Ural Federal Agrarian Scientific Research Centre of the Ural Branch of the Russian Academy of Sciences; 112 a, Belinskogo st., Yekaterinburg, 620142; phone: 8-903-0833132; e-mail: marafon.86@list.ru.

Authors’ Contribution: the manuscript was written with the input of all authors. All authors approved the final version of the manuscript.

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