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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/issn2072-2419.2025.3.152</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1802</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>ФАРМАКОЛОГИЯ, ТОКСИКОЛОГИЯ, ФАРМАЦИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHARMACOLOGY, TOXICOLOGY, PHARMACY</subject></subj-group></article-categories><title-group><article-title>Идентификация и пробиотические свойства лактобактерий из кишечника цыплят-бройлеров</article-title><trans-title-group xml:lang="en"><trans-title>Identification and probiotic properties of lactobacilli from the intestines of broiler chickens</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7051-9858</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зверева</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zvereva</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>асс.</p></bio><bio xml:lang="en"><p>Assistant Professor of the Department of Biochemistry and Biotechnology </p></bio><email xlink:type="simple">bond.vrn15@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/0009-0001-6701-3039</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузнецова</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsova</surname><given-names>Yu. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотр.</p></bio><bio xml:lang="en"><p>Junior Researcher</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/0009-0005-9460-9507</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вострикова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vostrikova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>мл. науч. сотр.</p></bio><bio xml:lang="en"><p>Junior Researcher</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/0000-0001-9028-0613</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сыромятников</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Syromyatnikov</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, доц., вед. науч. сотр.</p></bio><bio xml:lang="en"><p>PhD in Biological Sciences, Associate Professor, Leading Researcher</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5457-1325</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhaylov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. ветеринар. наук, вед. науч. сотр.</p></bio><bio xml:lang="en"><p>PhD in Veterinary Sciences, Leading Researcher</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корнеева</surname><given-names>О. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Korneeva</surname><given-names>O. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р. биол. наук, проф. </p></bio><bio xml:lang="en"><p>PhD in Biological Sciences, Professor </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУВО «Воронежский государственный университет инженерных технологий»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh State University of Engineering Technology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУВО «Воронежский государственный университет инженерных технологий»;&#13;
ФГБНУ «Всероссийский научно-исследовательский ветеринарный институт патологии, фармакологии и терапии» (ФГБНУ «ВНИВИПФиТ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh State University of Engineering Technology;&#13;
All-Russian Veterinary Research Institute of Pathology, Pharmacology and Therapy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБНУ «Всероссийский научно-исследовательский ветеринарный институт патологии, фармакологии и терапии» (ФГБНУ «ВНИВИПФиТ»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Veterinary Research Institute of Pathology, Pharmacology and Therapy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>07</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>152</fpage><lpage>163</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зверева О.В., Кузнецова Ю.П., Вострикова А.С., Сыромятников М.Ю., Михайлов Е.В., Корнеева О.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Зверева О.В., Кузнецова Ю.П., Вострикова А.С., Сыромятников М.Ю., Михайлов Е.В., Корнеева О.С.</copyright-holder><copyright-holder xml:lang="en">Zvereva O.V., Kuznetsova Y.P., Vostrikova A.S., Syromyatnikov M.Y., Mikhaylov E.V., Korneeva O.S.</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/1802">https://vetjournal.spbguvm.ru/jour/article/view/1802</self-uri><abstract><p>Объектами исследования данной работы были выбраны следующие штаммы: Pediococcus acidilactici, Lactobacillus johnsonii и Ligilactobacillus salivarius, выделенные из фекалий цыплят-бройлеров возрастом 14 суток. Навеску фекалий цыплят-бройлеров помещали в стерильную питательную среду MRS (HiMedia, Индия) и инкубировали при температуре 37 ˚С в течение 24 часов. После этого анализируемые образцы пересевали глубинно на питательную среду MRS–агар («НПЦ «Биокомпас-С», Россия) методом предельных разведений для выделения отдельных колоний микроорганизмов. Чашки Петри с посевами инкубировали в течение 48 часов при 37 ˚С. Выросшие колонии микроорганизмов идентифицировали по культуральным и морфологическим признакам для дальнейшего секвенирования. Изучена устойчивость данных культур к желчным кислотам, проведена оценка их антагонистической активности, толерантности к экстремально низким и высоким значениям рН, а также проведен анализ их устойчивости к разным группам антибиотиков. L. salivarius оказался наиболее устойчивым к желчи по сравнению с L. johnsonii и P. acidilactici. Антагонистического действия по отношению к нормальной микробиоте желудочно-кишечного тракта P. acidilactici не проявил, в отличие от других анализируемых штаммов, но оказал существенное влияние в отношении условно-патогенных бактерий. Экс тремально низкие и высокие значения рН не провоцировали полную гибель P. acidilactici, тогда как L. salivarius и L. johnsonii не сохранили активность при экстремально низких значениях рН. Также в ходе эксперимента было выявлено, что L. johnsonii оказался наиболее антибиотикочувствительным штаммом.</p></abstract><trans-abstract xml:lang="en"><p>The objects of study in this work were the following strains: Pediococcus acidilactici, Lactobacillus johnsonii and Ligilactobacillus salivarius, isolated from the feces of 14-day-old broiler chickens. A sample of broiler chicken feces was placed in a sterile MRS nutrient medium (HiMedia, India) and incubated at 37 ˚C for 24 hours. After that, the analyzed samples were subcultured deeply onto the MRS-agar nutrient medium (SPC Biokompas-S, Russia) using the limiting dilution method to isolate individual colonies of microorganisms. Petri dishes with the cultures were incubated for 48 hours at 37 ˚C. The grown colonies of microorganisms were identified by cultural and morphological characteristics for further sequencing. The resistance of these cultures to bile acids was studied, their antagonistic activity, tolerance to extremely low and high pH values were assessed, and their resistance to different groups of antibiotics was analyzed. L. salivarius was the most resistant to bile compared to L. johnsonii and P. acidilactici. P. acidilactici did not exhibit antagonistic action against the normal microbiota of the gastrointestinal tract, unlike the other analyzed strains, but had a significant effect on opportunistic bacteria. Extremely low and high pH values did not provoke complete death of P. acidilactici, while L. salivarius and L. johnsonii did not retain activity at extremely low pH values. The experiment also revealed that L. johnsonii was the most antibiotic-sensitive strain.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пробиотики</kwd><kwd>цыплята</kwd><kwd>высокопроизводительное секвенирование</kwd><kwd>молочнокислые бактерии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>probiotics</kwd><kwd>chickens</kwd><kwd>high-throughput sequencing</kwd><kwd>lactic acid bacteria</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания Министерства науки и высшего образования Российской Федерации (проект FZGW2024-0003).</funding-statement><funding-statement xml:lang="en">The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (project FZGW-2024-0003).</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">Aidara-Kane A., Angulo F. 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