vniigisРоссийский паразитологический журналRussian Journal of Parasitology1998-84352541-7843ВНИИП – филиал ФГБНУ ФНЦ ВИЭВ РАН10.31016/1998-8435-2025-19-1-34-48vniigis-1273Research ArticleЭПИЗООТОЛОГИЯ, ЭПИДЕМИОЛОГИЯ И МОНИТОРИНГ ПАРАЗИТАРНЫХ БОЛЕЗНЕЙEPIZOOTOLOGY, EPIDEMIOLOGY AND MONITORING OF PARASITIC DISEASESВидовой состав и возрастная динамика распространения кишечных простейших у домашних собак и кошек в городе МосквеSpecies composition and age dynamics of the spread of intestinal protozoa in domestic dogs and cats in the city of Moscowhttps://orcid.org/0000-0002-3248-8931КурносоваО. П.KurnosovaO. P.

Курносова Ольга Петровна - кандидат биологических наук, старший научный сотрудник лаборатории паразитарных зоонозов, SPIN-код: 6784-0914, Researcher ID: U-9779-2018, Scopus ID: 23473657000.

Москва

Kurnosova Olga P. - Ph. D., Senior Researcher, Laboratory of Parasitic Zoonoses, SPIN: 6784-0914, Researcher ID: U-9779-2018, Scopus ID: 23473657000.

Moscow

kurnosova@vniigis.ruhttps://orcid.org/0000-0001-9254-0167ПановаО. А.PanovaO. A.

Панова Ольга Александровна, кандидат биологических наук, заведующая лабораторией биологии и биологических основ профилактики; SPIN-код: 8614-5941, Researcher ID: I-6971-2018, Scopus ID: 57189098000.

Москва

Panova Olga A. - Ph. D., Head of the Laboratory of Biology and Biological Foundations of Prevention; SPIN: 8614-5941, Researcher ID: I-6971-2018, Scopus ID: 57189098000.

Moscow

panova@vniigis.ruВсероссийский научно-исследовательский институт фундаментальной и прикладной паразитологии животных и растений – филиал Федерального государственного бюджетного научного учреждения «Федеральный научный центр – Всероссийский научно-исследовательский институт экспериментальной ветеринарии имени К.И. Скрябина и Я.Р. Коваленко Российской академии наук» (ВНИИП – фил. ФГБНУ ФНЦ ВИЭВ РАН)РоссияAll-Russian Scientific Research Institute for Fundamental and Applied Parasitology of Animals and Plant – a branch of the Federal State Budget Scientific Institution "Federal Scientific Centre VIEV"Russian Federation2025170320251913448Copyright © Курносова О.П., Панова О.А., 20252025Курносова О.П., Панова О.А.Kurnosova O.P., Panova O.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vniigis.elpub.ru/jour/article/view/1273

Цель исследований – изучение распространения кишечных простейших у собак и кошек на территории г. Москвы.

Материалы и методы

Материалы и методы. За 2020–2022 гг. исследовано 3411 проб фекалий: 2212 от собак, из них 994 от щенков, и 1199 проб от кошек, из них 465 от котят. Все животные, вошедшие в опыт, домашнего содержания. Фекалии исследовали нативной микроскопией и флотационным методом с использованием раствора сульфата цинка (ZnSO4) плотностью 1,24 г/см3.

Результаты и обсуждение

Результаты и обсуждение. У собак самыми распространенными являются Giardia duodenalis – 9,27% (205 положительных проб из 2212), затем Sarcocystis sp. – 3,8% (84/2212), реже регистрировали Cystoisospora sp. – 2,58% (57/2212), Cryptosporidium sp. – 2,49% (55/2212), Cystoisospora canis – 1,13% (25/2212), Sarcocystidae gen. sp. – 0,3% (7/2212), сем. Trichomonadidae – 0,27% (6/2212). В 15,5% случаев у собак зарегистрированы кишечные протозойные болезни в виде моноинвазии. Среди смешанных инвазий чаще всего регистрировали G. duodenalis и C. canis – 0,5% (10/2212) и G. duodenalis и Cryptosporidium sp. – 0,3% (7/2212). У кошек показатели экстенсивности инвазии простейшими составили: Giardia duodenalis 5,5% (66/1199), Cryptosporidium sp. – 4,17% (50/1199), сем. Trichomonadidae – 2,67% (32/1199), Cystoisospora felis – 1,33% (16/1199), Sarcocystis sp. – 0,42% (5/1199), Cystoisospora rivolta – 0,25% (3/1199), Sarcocystidae gen. sp. 0,17% (2/1199). У кошек наиболее часто встречаются сочетания двух видов простейших: G. duodenalis и Cryptosporidium sp. – 0,5% (6/1199), G. duodenalis и сем. Trichomonadidae – 0,4% (5/1199). С возрастом как у кошек, так и у собак снижается зараженность G. duodenalis и Cryptosporidium sp., у кошек также снижается зараженность C. felis, а у собак простейшими сем. Trichomonadidaе, C. canis и Cystoisospora sp.

The purpose of the research is to study the spread of intestinal protozoa in dogs and cats in the territory of Moscow.

Materials and methods

Materials and methods. In 2020–2022, 3,411 fecal samples were analyzed: 2212 from dogs, including 994 samples from puppies, and 1199 samples from cats, including 465 from kittens. All animals included in the experiment were kept at home. The feces were examined by native microscopy and the flotation method using a zinc sulfate (ZnSO4) solution with a density of 1.24 g/cm3.

Results and discussion

Results and discussion. The results of the study showed that the most common in dogs are Giardia duodenalis – 9.27% (205 positive samples out of 2212), Sarcocystis sp. – 3.8% (84/2212), less frequently recorded Cystoisospora sp. – 2.58% (57/2212), Cryptosporidium sp. – 2.49% (55/2212), Cystoisospora canis – 1.13% (25/2212), Sarcocystidae gen. sp. – 0.3% (7/2212), family Trichomonadidae – 0.27% (6/2212). In 15.5% of cases, intestinal protozoan diseases in the form of monoinfection were registered in dogs. Among mixed infections, the most frequently recorded were G. duodenalis and C. canis – 0.5% (10/2212) and G. duodenalis and Cryptosporidium sp. – 0.3% (7/2212). In cats, the prevalence rates of protozoan infection were: Giardia duodenalis 5.5% (66/1199), Cryptosporidium sp. – 4.17% (50/1199), fam. Trichomonadidae – 2.67% (32/1199), Cystoisospora felis – 1.33% (16/1199), Sarcocystis sp. – 0.42% (5/1199), Cystoisospora rivolta – 0.25% (3/1199), Sarcocystidae gen. sp. 0.17% (2/1199). In cats, the most common combinations of two protozoan species were: G. duodenalis and Cryptosporidium sp. – 0.5% (6/1199), G. duodenalis and fam. Trichomonadidae – 0.4% (5/1199). With the age of the animal, both cats and dogs experience a decrease in infection with G. duodenalis and Cryptosporidium sp., cats also experience a decrease in infection with C. felis, and dogs experience a decrease in infection with protozoa of the fam. Trichomonadidae, C. canis and Cystoisospora sp.

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The authors declare that there are no conflicts of interest present.