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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">10.32634/0869-8155-2022-359-5-137-142</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-2113</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>АГРОИНЖЕНЕРИЯ И ПИЩЕВЫЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGROENGINEERING AND FOOD TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Биологические аспекты культивирования и применения активных метаболитов пробиотика B. subtilis</article-title><trans-title-group xml:lang="en"><trans-title>Biological aspects of cultivation and application of active metabolites of B. subtilis probiotic</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3404-1591</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Виктор Сергеевич, доктор ветеринарных наук, ведущий научный сотрудник, заведующий лабораторией ветеринарной медицины и биотехнологий </p><p>г. Курск, 305021, ул. Карла Маркса, 70Б</p></bio><bio xml:lang="en"><p>Popov Viktor Sergeevich, Doctor of Veterinary Sciences, LeadingResearcher, Head of the Laboratory of Veterinary Medicine andBiotechnology</p><p>70B, Karl Marx st., Kursk, 305021</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/0000-0001-9119-1217</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Свазлян</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Svazlyan</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Свазлян Гаяне Агасовна, кандидат биологических наук, старший научный сотрудник лаборатории ветеринарной медициныи биотехнологий </p><p>г. Курск, 305021, ул. Карла Маркса, 70Б</p></bio><bio xml:lang="en"><p>Svazlyan Gayane Agasovna, Candidate of Biological Sciences,Senior Researcher of the Laboratory of Veterinary Medicine andBiotechnology </p><p>70B, Karl Marx st., Kursk, 305021</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/0000-0002-2149-4711</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Наумов</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Naumov</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наумов Николай Михайлович, кандидат биологическихнаук, старший научный сотрудник лаборатории ветеринарноймедицины и биотехнологий </p><p>г. Курск, 305021, ул. Карла Маркса, 70Б</p></bio><bio xml:lang="en"><p>Naumov Nikolai Mihailovich, Candidate of Biological Sciences,Senior Researcher of the Laboratory of Veterinary Medicine andBiotechnology</p><p>70B, Karl Marx st., Kursk, 305021</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Курский федеральный аграрный научный центр»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Agricultural Kursk Research Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>17</day><month>06</month><year>2022</year></pub-date><volume>0</volume><issue>5</issue><fpage>137</fpage><lpage>142</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Попов В.С., Свазлян Г.А., Наумов Н.М., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Попов В.С., Свазлян Г.А., Наумов Н.М.</copyright-holder><copyright-holder xml:lang="en">Popov V.S., Svazlyan G.A., Naumov N.M.</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/2113">https://www.vetpress.ru/jour/article/view/2113</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. В современных исследованиях тема метабиотиков рассматривается в качестве одного из актуальных направлений развития пробиотиков, в будущем — как новый класс метабиотиков. В статье приведены результаты исследований при культивировании пробиотического микроорганизма B. subtilis в зерновой питательной среде из овса голозерного, научно-практическое обоснование использования экспериментальной пробиотической суспензии при формировании микробиоценоза и метаболизма желудочно-кишечного тракта у поросят раннего отъема.</p></sec><sec><title>Методы</title><p>Методы. Как основу питательных сред для получения метаболитов пробиотической культуры Bacillus subtilis использовали пророщенное и непророщенное зерно овса голозерного сорта Немчиновский из расчета 100 г измельченного сырья на 3 л воды. Массовая доля протеиногенных аминокислот в экспериментальных пробиотических суспензиях (ЭПС) исследовалась методом капилярного электрофореза. Научно-хозяйственный опыт проведен по методике А.И. Овсяникова,1976.</p></sec><sec><title>Результаты</title><p>Результаты. В питательных средах на основе овса (О, ОП) численность КОЕ пробиотических микроорганизмов имеет определенную вариабельность. Увеличение численности КОЕ B. subtilis продолжалось до 6-х суток, в образце ОП она достигала 5,8·107 КОЕ/см3, что на 15,5% выше, чем в образце на основе непроросшего овса, после чего наблюдался спад до 8-х суток в среде на основе ОП до 15,5·106 КОЕ/см3. При этом синтез аминокислот установлен выше по сравнению с контролем (пророщенное зерно): лизина — в пределах 7,85–10,53 г/л, метионина — 2,03–2,35 г/л, лейцина + изолейцина — в пределах 5,79–9,7 г/л. Показатели белкового обмена находятся в пределах физиологической нормы у поросят опытных групп. У поросят, получавших экспериментальную пробиотическую суспензию, более выраженный антагонистический эффект при формировании микробиоценоза к условно-патогенным бактериям был проявлен при выпаивании культуры B. subtilis , выращенной на среде, основой которой служил овес пророщенный.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. In modern research, the topic of metabiotics is considered as one of the current directions in the development of probiotics, in the future — as a new class of metabiotics. The article presents the results of studies during the cultivation of the probiotic microorganism B. subtilis in a grain nutrient medium from naked oats, and a scientific and practical substantiation of an experimental probiotic suspension during the formation of microbiocenosis and metabolism of the gastrointestinal tract in early weaning piglets.</p></sec><sec><title>Methods</title><p>Methods. As the basis of nutrient media for obtaining metabolites of the probiotic culture of Bacillus subtilis, sprouted and non-sprouted oat grains of the naked variety Nemchinovsky were used at the rate of 100 g of crushed raw material per 3 l of water. The mass fraction of proteinogenic amino acids in experimental probiotic suspensions (EPS) was studied by capillary electrophoresis. The scientific and economic experiment was carried out according to the method of A.I. Ovsyanikov, 1976.</p></sec><sec><title>Results</title><p>Results. In nutrient media based on oats (O, OP), the number of CFU of probiotic microorganisms has a certain variability. The increase in the abundance of B. subtilis CFU continued up to 6 days, in the OP sample it reached 5.8·107 CFU/cm, after what it decreased until 8th day down to 15.5·106 CFU/cm3. At the same time, the synthesis of amino acids is higher compared to control (germinated grain): lysine — in the range of 7.85–10.53 g/l, methionine — 2.03–2.35 g/l, leucine + isoleucine — in the range 5.79– 9.7 g/l. Indicators of protein metabolism are within the physiological norm in piglets of experimental groups. In piglets that received an experimental probiotic suspension, a more pronounced antagonistic effect, during the formation of microbiocenosis, was manifested to conditionally pathogenic bacteriaif they were given B. subtilis, obtained on a medium based on sprouted oats.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>питательная среда</kwd><kwd>пробиотики</kwd><kwd>метабиотики</kwd><kwd>поросята</kwd><kwd>микробиоценоз</kwd><kwd>метаболизм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nutrient medium</kwd><kwd>probiotics</kwd><kwd>metabiotics</kwd><kwd>piglets</kwd><kwd>microbiocenosis</kwd><kwd>metabolism</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Магомедалиев И. М., Некрасов Р. В., Чабаев М. Г., Джавахия В. В., Глаголева Е. В., Карташов М. И. 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