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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">ivm</journal-id><journal-title-group><journal-title xml:lang="ru">Международный вестник ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>International Journal of Veterinary Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-2419</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2072-2419.2026.1.77</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1991</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>ИНФЕКЦИОННЫЕ БОЛЕЗНИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFECTIOUS DISEASES</subject></subj-group></article-categories><title-group><article-title>Случай выявления микоплазменного мастита у коров на фоне вторичной анаэробной инфекции</article-title><trans-title-group xml:lang="en"><trans-title>A case of mycoplasma mastitis detection in cows with secondary anaerobic infection</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7130-5627</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Исакова</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Isakova</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. ветеринар. наук, ст. науч. сотр. отдела репродуктивной биологии и неонатологии</p></bio><bio xml:lang="en"><p>Candidate of Veterinary Sciences, Senior Researcher in the  Department of Reproductive Biology and Neonatology </p><p>Yekaterinburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2793-5001</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Безбородова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bezborodova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. ветеринар. наук, зав. отделом геномных исследований и селекции животных</p></bio><bio xml:lang="en"><p>Candidate of Veterinary Sciences, Head of the Department of Genomic Research and Animal Breeding</p><p>Yekaterinburg</p></bio><email xlink:type="simple">n-bezborodova@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/0000-0001-9251-0056</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мартынов</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Martynov</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>лаборант отдела геномных исследований и селекции животных</p></bio><bio xml:lang="en"><p>Laboratory Assistant in the Department of Genomic Research and Animal Breeding</p><p>Yekaterinburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0284-0276</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зубарева</surname><given-names>В. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zubareva</surname><given-names>V. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. ветеринар. наук, ст. спец. отдела геномных  исследований и селекции животных</p></bio><bio xml:lang="en"><p>Candidate of Veterinary Sciences, Senior Specialist in the Department of Genomic Research and Animal Breeding </p><p>Yekaterinburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7924-6844</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кожуховская</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozhukhovskaya</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>науч. сотр. отдела ветеринарно-лабораторной диагностики с испытательной лабораторией</p></bio><bio xml:lang="en"><p>Research associate of the department of veterinary laboratory diagnostics with a testing laboratory</p><p>Yekaterinburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Уральский федеральный аграрный научно-исследовательский центр Уральского отделения Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal Agrarian Scientific Research Centre, Ural Branch of the RussianAcademy of Science</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>04</month><year>2026</year></pub-date><volume>0</volume><issue>1</issue><fpage>77</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Исакова М.Н., Безбородова Н.А., Мартынов Н.А., Зубарева В.Д., Кожуховская В.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Исакова М.Н., Безбородова Н.А., Мартынов Н.А., Зубарева В.Д., Кожуховская В.В.</copyright-holder><copyright-holder xml:lang="en">Isakova M.N., Bezborodova N.A., Martynov N.A., Zubareva V.D., Kozhukhovskaya V.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://vetjournal.spbguvm.ru/jour/article/view/1991">https://vetjournal.spbguvm.ru/jour/article/view/1991</self-uri><abstract><p>В статье представлены данные о сочетанном поражении молочного стада коров микоплазмозом и клостридиозом, вызывающих у животных стойкую хронизацию мастита, гнойную форму с абсцессами молочной железы, отёк и гнилостное разложение мышц задних конечностей. Проведённая комплексная лабораторная диагностика (культуральные исследования, MALDI-TOF массспектрометрия, ПЦР) выявила высокую распространённость хронических (5,3%) и субклинических (53,3%) маститов, а также гнойно-некротических поражений мышц (16,6%). Основными возбудителями маститов стали M. bovigenitalium (22,2%), S. aureus (16,7–60%) и T. pyogenes, а гнойных инфекций — B. pyogenes (21,4%) и Clostridium perfringens тип A. Выявлена значительная антибиотикорезистентность: 75% E. Coli устойчивы к фторхинолонам и цефалоспоринам I поколения, 33,3% S. aureus — к цефалоспоринам II поколения (MecA), S. agalactiae и Staphylococcus spp. — к макролидам (ErmB). Рекомендованы препараты выбора: цефтиофур — против T. pyogenes и чувствительных S. aureus, гентамицин — при грамотрицательных инфекциях, тилозин — при микоплазменных маститах, фторхинолоны — при клостридиозах. Лечение должно быть основано на тестировании чувствительности, с строгим соблюдением дозировок и курса. Ключевое значение имеют профилактика (гигиена доения, вакцинация, дезинфекция) и регулярный мониторинг резистентности.</p></abstract><trans-abstract xml:lang="en"><p>The article presents data on the concurrent infection of a dairy herd with mycoplasmosis and clostridiosis, leading to persistent chronic mastitis, a purulent form with mammary gland abscesses, edema, and putrefactive decomposition of the muscles in the hind limbs. Comprehensive laboratory diagnostics (cultural studies, MALDI-TOF mass spectrometry, PCR) revealed a high prevalence of chronic (5.3%) and subclinical (53.3%) mastitis cases, as well as purulentnecrotic muscle lesions (16.6%). The primary causative agents of mastitis were M. bovigenitalium (22.2%), S. aureus (16.7–60%), and T. pyogenes, while purulent infections were predominantly caused by B. pyogenes (21.4%) and Clostridium perfringens type A. Significant antibiotic resistance was identified: 75% of E. coli isolates were resistant to fluoroquinolones and first-generation cephalosporins, 33.3% of S. aureus were resistant to second-generation cephalosporins (MecA gene), and S. agalactiae and Staphylococcus spp. showed resistance to macrolides (ErmB gene). The following first-line treatments are recommended: ceftiofur for T. pyogenes and susceptible S. aureus, gentamicin for Gramnegative infections, tilmicosin or tylosin for mycoplasmal mastitis, and fluoroquinolones for clostridial infections. Antimicrobial therapy must be based on sensitivity testing, with strict adherence to dosages and treatment duration. Prophylaxis (milking hygiene, vaccination, disinfection) and regular monitoring of resistance are of paramount importance.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коровы</kwd><kwd>мастит</kwd><kwd>абсцесс</kwd><kwd>отек</kwd><kwd>вымя</kwd><kwd>мышцы бедра</kwd><kwd>микоплазменная инфекция</kwd><kwd>клостридии</kwd><kwd>этиологически значимые патогены</kwd><kwd>полимеразная цепная реакция</kwd><kwd>культуральный метод</kwd><kwd>масс-спектрометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cows</kwd><kwd>mastitis</kwd><kwd>abscess</kwd><kwd>edema</kwd><kwd>udder</kwd><kwd>thigh muscles</kwd><kwd>mycoplasma infection</kwd><kwd>clostridia</kwd><kwd>etiologically significant pathogens</kwd><kwd>polymerase chain reaction</kwd><kwd>culture method</kwd><kwd>mass spectrometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Материалы подготовлены в рамках государственного задания Минобрнауки России по теме «Изучение современных особенностей приоритетных патогенов и восприимчивых сельскохозяйственных животных и разработка актуального комплекса диагностических, иммунобиологических препаратов и подходов для управления, прогнозирования и обеспечения эпизоотической и биологической безопасности» (0532-2026-0006).</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">Горбатова, Х.С. 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