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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">veterinary</journal-id><journal-title-group><journal-title xml:lang="ru">Ветеринария сегодня</journal-title><trans-title-group xml:lang="en"><trans-title>Veterinary Science Today</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304-196X</issn><issn pub-type="epub">2658-6959</issn><publisher><publisher-name>"Veinard"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29326/2304-196X-2025-14-2-194-200</article-id><article-id custom-type="elpub" pub-id-type="custom">veterinary-918</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ | ВЕТЕРИНАРНАЯ МИКРОБИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES | VETERINARY MICROBIOLOGY</subject></subj-group></article-categories><title-group><article-title>Видовое разнообразие клостридий у крупного рогатого скота</article-title><trans-title-group xml:lang="en"><trans-title>Clostridium species diversity in cattle</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7360-927X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шастин</surname><given-names>П. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shastin</surname><given-names>P. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шастин Павел Николаевич, канд. вет. наук, старший научный сотрудник лаборатории диагностики и контроля антибиотикорезистентности возбудителей наиболее клинически значимых инфекционных болезней животных,</p><p>Рязанский проспект, 24/1, г. Москва, 109428.</p></bio><bio xml:lang="en"><p>Pavel N. Shastin, Cand. Sci. (Veterinary Medicine), Senior Researcher, Laboratory for Diagnostics and Control of Antibiotic Resistance of Pathogens of the Most Clinically Significant Infectious Animal Diseases, </p><p>24/1, Ryazansky prospekt, Moscow 109428.</p></bio><email xlink:type="simple">shastin.pasha@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1891-0005</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савинов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Savinov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савинов Василий Александрович, канд. биол. наук, старший научный сотрудник лаборатории микологии и антибиотиков им. А. Х. Саркисова,</p><p>Рязанский проспект, 24/1, г. Москва, 109428.</p></bio><bio xml:lang="en"><p>Vasiliy A. Savinov, Cand. Sci. (Biology), Senior Researcher, Laboratories of Mycology and Antibiotics named after A. H. Sarkisov,</p><p>24/1, Ryazansky prospekt, Moscow 109428.</p></bio><email xlink:type="simple">visik06@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5050-2274</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лаишевцев</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Laishevtsev</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лаишевцев Алексей Иванович, канд. биол. наук, ведущий научный сотрудник, и. о. заведующего лабораторией диагностики и контроля антибиотикорезистентности возбудителей наиболее клинически значимых инфекционных болезней животных,</p><p>Рязанский проспект, 24/1, г. Москва, 109428.</p></bio><bio xml:lang="en"><p>Aleksey I. Laishevtsev, Cand. Sci. (Biology), Leading Researcher, Acting Head, Laboratory for Diagnostics and Control of Antibiotic Resistance of Pathogens of the Most Clinically Significant Infectious Animal Diseases, </p><p>24/1, Ryazansky prospekt, Moscow 109428.</p></bio><email xlink:type="simple">a.laishevtsev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-6941-9499</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мандрыка</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Mandryka</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мандрыка Екатерина Дмитриевна, микробиолог лаборатории диагностики и контроля антибиотикорезистентности возбудителей наиболее клинически значимых инфекционных болезней животных,</p><p>Рязанский проспект, 24/1, г. Москва, 109428.</p></bio><bio xml:lang="en"><p>Ekaterina D. Mandryka, Microbiologist, Laboratory for Diagnostics and Control of Antibiotic Resistance of Pathogens of the Most Clinically Significant Infectious Animal Diseases, </p><p>24/1, Ryazansky prospekt, Moscow 109428.</p></bio><email xlink:type="simple">mandryka.ekaterina@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4465-8640</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фабрикантова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fabrikantova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фабрикантова Елизавета Алексеевна, микробиолог лаборатории диагностики и контроля антибиотикорезистентности возбудителей наиболее клинически значимых инфекционных болезней животных,</p><p>Рязанский проспект, 24/1, г. Москва, 109428.</p></bio><bio xml:lang="en"><p>Elizaveta A. Fabrikantova, Microbiologist, Laboratory for Diagnostics and Control of Antibiotic Resistance of Pathogens of the Most Clinically Significant Infectious Animal Diseases, </p><p>24/1, Ryazansky prospekt, Moscow 109428.</p></bio><email xlink:type="simple">el@novokchenova.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0728-538X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Супова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Supova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Супова Анастасия Владимировна, научный сотрудник лаборатории диагностики и контроля антибиотикорезистентности возбудителей наиболее клинически значимых инфекционных болезней животных,</p><p>Рязанский проспект, 24/1, г. Москва, 109428.</p></bio><bio xml:lang="en"><p>Anastasia V. Supova, Researcher, Laboratory for Diagnostics and Control of Antibiotic Resistance of Pathogens of the Most Clinically Significant Infectious Animal Diseases, </p><p>24/1, Ryazansky prospekt, Moscow 109428.</p></bio><email xlink:type="simple">supova.nastya@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Федеральный научный центр – Всероссийский научно-исследовательский институт экспериментальной ветеринарии имени К. И. Скрябина и Я. Р. Коваленко Российской академии наук» (ФГБНУ ФНЦ ВИЭВ РАН)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Centre VIEV</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2025</year></pub-date><volume>14</volume><issue>2</issue><fpage>194</fpage><lpage>200</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шастин П.Н., Савинов В.А., Лаишевцев А.И., Мандрыка Е.Д., Фабрикантова Е.А., Супова А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Шастин П.Н., Савинов В.А., Лаишевцев А.И., Мандрыка Е.Д., Фабрикантова Е.А., Супова А.В.</copyright-holder><copyright-holder xml:lang="en">Shastin P.N., Savinov V.A., Laishevtsev A.I., Mandryka E.D., Fabrikantova E.A., Supova A.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://veterinary.arriah.ru/jour/article/view/918">https://veterinary.arriah.ru/jour/article/view/918</self-uri><abstract><sec><title>Введение</title><p>Введение. Клостридиозы, несмотря на относительно спорадические случаи их возникновения, имеют повсеместное распространение и характеризуются высокой летальностью, что наносит экономический ущерб сельскому хозяйству. У крупного рогатого скота патогенные клостридии вызывают такие заболевания, как энтеротоксемия, злокачественный отек, столбняк, ботулизм. Этиологически значимыми видами клостридий являются Clostridium septicum, Clostridium perfringens, Clostridium chauvoei, Clostridium novyi, Clostridium sordellii.</p></sec><sec><title>Цель работы</title><p>Цель работы. Изучение видового разнообразия клостридий на основании исследований патолого-анатомического и секционного материала крупного рогатого скота из различных регионов России, определение мест их локализации в организме животных, а также антибактериальной устойчивости Clostridium perfringens к наиболее распространенным группам антибиотиков.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В период проведения исследования руководствовались общепринятыми нормативно-правовыми документами, методическими указаниями, рекомендациями, инструкциями; применяли микробиологические, масс-спектрометрические методы. Для определения антибактериальной устойчивости использовались различные группы препаратов: макролиды, монобактамы, пенициллины, полипептиды, гликопептиды, аминогликозиды, карбапенемы, линкозамиды, тетрациклины, ансамицины, диаминопиримидины, фузидины и др. Изоляты клостридий выделяли, используя рутинные бактериологические методы, видовую идентификацию выполняли с помощью времяпролетной масс-спектрометрии MALDI-ToF.</p></sec><sec><title>Результаты</title><p>Результаты. При исследовании 359 образцов биоматериала было выделено и идентифицировано 137 изолятов клостридий (Paraclostridium bifermentans, Clostridium perfringens, Clostridium tertium, Clostridium butyricum, Clostridium septicum, Clostridium sporogenes, Clostridium cadaveris, Clostridium sphenoides, Clostridium cochlearium, Clostridium sartagoforme, Clostridium chauvoei, Clostridium novyi, Clostridium sordellii, Clostridium paraputrificum, Clostridium spp.), из которых 25 обладали патогенными и 17 – токсигенными свойствами. Чаще всего клостридии обнаруживали в печени, тонком и толстом отделах кишечника, мышцах. При этом выявлено превалирование Clostridium perfringens (17,5%). Установлена полирезистентность изолятов данного вида бактерии к цефиксиму, фузидиевой кислоте, цефотаксиму, цефаклору, спектиномицину, пиперациллину, кларитромицину, дорипенему, доксициклину.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные результаты могут быть использованы для модификации существующих протоколов лечения клостридиозов, корректировки состава иммунобиологических препаратов, разработки рекомендаций по использованию антибиотиков в животноводстве для снижения рисков развития антимикробной резистентности.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Clostridial infections, though relatively sporadic, are globally ubiquitous and specified by high mortality rates, resulting in substantial economic losses to agriculture. In cattle, pathogenic сlostridia cause diseases such as enterotoxemia, malignant edema, tetanus, and botulism. The most clinically significant species include Clostridium septicum, Clostridium perfringens, Clostridium chauvoei, Clostridium novyi, and Clostridium sordellii.</p></sec><sec><title>Objective</title><p>Objective. Study of Clostridium spp. diversity by examination of autopsy samples and sections of cattle from different regions of Russia; determination of their anatomical localization as well as antibiotic resistance of Clostridium perfringens to the most common groups of antibiotics.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Throughout the study, we adhered to internationally recognized regulatory frameworks and methodological guidelines, employing standardized microbiological and mass-spectrometric methods. Antibiotic resistance was tested against multiple drug groups, such as macrolides, monobactams, penicillins, polypeptides, glycopeptides, aminoglycosides, carbapenems, lincosamides, tetracyclines, ansamycins, diaminopyrimidines, fusidic acid derivatives, etc. Clostridium isolates were recovered and identified using routine bacteriological methods coupled with MALDI-ToF mass spectrometry.</p></sec><sec><title>Results</title><p>Results. Analysis of 359 biological samples resulted in isolation and identification of 137 Clostridium isolates (Paraclostridium bifermentans, Clostridium perfringens,</p><p>Clostridium tertium, Clostridium butyricum, Clostridium septicum, Clostridium sporogenes, Clostridium cadaveris, Clostridium sphenoides, Clostridium cochlearium, Clostridium sartagoforme, Clostridium chauvoei, Clostridium novyi, Clostridium sordellii, Clostridium paraputrificum, Clostridium spp.), of which 25 exhibited pathogenic potential and 17 demonstrated toxigenic properties. Сlostridia were most frequently isolated from the liver, small and large intestinal segments, and muscular tissues. Herewith, Clostridium perfringens prevailed (17.5%). This bacterium isolates demonstrated multiple drug resistance to cefixime, fusidic acid, cefotaxime, cefaclor, spectinomycin, piperacillin, clarithromycin, doripenem and doxycycline.</p></sec><sec><title>Conclusion</title><p>Conclusion. The obtained results can be used for modification of current clostridial infection treatment protocols, reformulation of immunobiological products, development of evidence-based guidelines for use of antibiotics in livestock production to mitigate antimicrobial resistance risks.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>клостридии</kwd><kwd>Clostridiaceae</kwd><kwd>крупный рогатый скот</kwd><kwd>антибиотикорезистентность</kwd><kwd>токсигенность</kwd><kwd>биобезопасность</kwd><kwd>патогенность</kwd><kwd>анаэробы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Clostridium</kwd><kwd>Clostridiaceae</kwd><kwd>cattle</kwd><kwd>antibiotic resistance</kwd><kwd>toxigenicity</kwd><kwd>biosafety</kwd><kwd>pathogenicity</kwd><kwd>anaerobes</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено в рамках государственного задания Министерства науки и высшего образования Российской Федерации, проект FGUG-2025-0003.</funding-statement><funding-statement xml:lang="en">The study was conducted under the state assignment of the Ministry of Science and Higher Education of the Russian Federation (Project FGUG-2025-0003).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Капустин А. 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