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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2023-368-3-32-39</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-2535</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>ЗООТЕХНИЯ И ВЕТЕРИНАРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOTECHNICS AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Особенности состава пищеварительной микробиоты у сельскохозяйственной птицы при загрязнении кормов глифосатом</article-title><trans-title-group xml:lang="en"><trans-title>Peculiarities of the composition of the digestive microbiota in poultry with fodder contamination with glyphosate</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8795-6659</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лаптев</surname><given-names>Г. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Laptev</surname><given-names>G. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Юрьевич Лаптев, доктор биологических наук, профессор, генеральный директорЗагребский бульвар, д. 19, Санкт-Петербург, 192284,Российская Федерация</p></bio><bio xml:lang="en"><p>Georgiy Yuryevich Laptev, Doctor of Biological Sciences, Professor, General Director19 Zagreb avenue, St. Petersburg, 192284, Russian Federation </p></bio><email xlink:type="simple">laptev@biotrof.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/0000-0003-0271-2282</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Околелова</surname><given-names>Т. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Okolelova</surname><given-names>T. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тамара Михайловна Околелова, доктор биологических наук, профессор</p><p>Игарский проезд, д. 4, Москва, 129329, Российская Федерация </p></bio><bio xml:lang="en"><p>Tamara Mihailovna Okolelova, Doctor of Biological Sciences, Professor4 Igarsky proezd, Moscow, 129329, Russian Federation </p></bio><email xlink:type="simple">tokolelova@vetmag.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9001-2432</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюрина</surname><given-names>Д. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Tiurina</surname><given-names>D. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дарья Георгиевна Тюрина, кандидат экономических наук, заместитель директора</p><p>ул. Малиновская, д. 8, г. Пушкин, Санкт-Петербург, 196602, Российская Федерация </p></bio><bio xml:lang="en"><p>Darya Georgievna Tiurina, Candidate of Economic Sciences, Deputy Director </p><p>8 Malinovskaya Str., Pushkin, St. Petersburg, 196602, Russian Federation </p></bio><email xlink:type="simple">tiurina@biotrof.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «БИОТРОФ+»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>«BIOTROF+» LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-внедренческий центр «Агроветзащита»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific and Innovation Center «Agrovetzashchita»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>09</day><month>04</month><year>2023</year></pub-date><volume>0</volume><issue>3</issue><fpage>32</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лаптев Г.Ю., Околелова Т.М., Тюрина Д.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Лаптев Г.Ю., Околелова Т.М., Тюрина Д.Г.</copyright-holder><copyright-holder xml:lang="en">Laptev G.Y., Okolelova T.M., Tiurina D.G.</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://www.vetpress.ru/jour/article/view/2535">https://www.vetpress.ru/jour/article/view/2535</self-uri><abstract><p>Актуальность. Пищеварительный тракт птицы подвержен воздействию различных раздражителей — начиная от принятой пищи и воды и заканчивая лекарственными препаратами. Поэтому в структуре падежа отход птицы по причине заболеваний органов пищеварения достигает 30%. Известно, что в пищеварительном тракте птицы присутствует около 600–900 видов бактерий. При этом в здоровом организме микрофлора представляет сложную и сбалансированную симбиотическую микроэкосистему с нормальными метаболическими свойствами. Помимо нормофлоры, в кишечнике у птицы присутствуют микроорганизмы, представляющие угрозу здоровью, и их называют условно-патогенными и патогенными.Методы. До 2016 года вопрос норм содержания бактерий в ЖКТ птицы оставался малоизученным. Однако в НПК «Биотроф+» методом NGS-секвенирования впервые в мире определены четкие пороговые значения для разных групп микроорганизмов в норме и при разных заболеваниях.Результаты. Экспериментально установлено, что одной из причин, изменяющих состав микробиома птиц, являются остаточные количества пестицидов в кормах. В эксперименте с применением в кормах глифосата в кишечнике у бройлеров возросло содержание стафилококков в 5 раз, энтеробактерий в 1,5 раза, количество полезной микрофлоры снижалось. Добавка в такие корма пробиотика «Пробиоцид-Ультра» способствовала существенному снижению численности патогенной и условно-патогенной микрофлоры. При этом на фоне отрицательного контроля живая масса бройлеров, выращенных на кормах, содержащих глифосат с добавкой пробиотика «Пробиоцид-Ультра» повышалась на 1,0%, а это значит, что негативный эффект остаточного количества пестицидов на здоровье и продуктивность птицы можно минимизировать грамотным применением пробиотиков.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. The gastrointestinal tract in poultry is vulnerable to different irritators from food and water to medicals. That is why the mortality due to diseases of the digestive system may be as much as 30%. It has been established that about 600–900 bacteria species inhabit the poultry gastrointestinal tract. Microflora of healthy organism is a complex and balanced symbiotic microecosystem with normal metabolic characteristics. In addition to normoflora poultry gastroinrestinal tract is populated by opportunistic pathogenic and pathogenic microflora, which may be hazardous to the host.Methods. The issues regarded to establishing limits of different bacteria had been understudied until 2016. “Biotrof+” Ltd. was first to estimate threshold values for different groups of microorganisms under normal and pathological conditions.Results. Experiments proved that one of factors that may affect the structure of poultry microbiome are pesticide residues in feed. The trial on broilers fed with glyphosate showed that the microflora structure was altered by the pesticide significantly: the amount of staphylococci increased 5 times, enterobacteria increased 1,5 times, the amount of beneficial bacteria decreased. Supplementing the glyphosate contaminated feed with probiotic “Probiocid-Ultra” promoted to significant decrease in the opportunistic pathogenic and pathogenic microflora. Compared to the negative control the broilers average live weight fed with probiotic “ProbiocidUltra” was 1,0% higher. That may be the demonstration of the fact that negative effect of pesticide residues on poultry health and productivity can be minimized by supplementing feed with probiotics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>желудочно-кишечный тракт</kwd><kwd>птица</kwd><kwd>микробиом</kwd><kwd>корма</kwd><kwd>гербициды</kwd><kwd>глифосат</kwd><kwd>пробиотики</kwd><kwd>продуктивность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gastrointestinal tract</kwd><kwd>poultry</kwd><kwd>microbiome</kwd><kwd>feed</kwd><kwd>herbicides</kwd><kwd>glyphosate</kwd><kwd>probiotics</kwd><kwd>productivity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта РНФ 22-16-00128</funding-statement><funding-statement xml:lang="en">This research was funded by the Russian Science Foundation under grant No. 22-16-00128</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">Wang X. et al. 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