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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Biology Bulletin</journal-id><journal-title-group><journal-title xml:lang="en">Biology Bulletin</journal-title><trans-title-group xml:lang="ru"><trans-title>Известия Российской академии наук. Серия биологическая</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1026-3470</issn><issn publication-format="electronic">3034-5367</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">647747</article-id><article-id pub-id-type="doi">10.31857/S1026347023700178</article-id><article-id pub-id-type="edn">MXSXVU</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>КРАТКИЕ&#13;
СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Effects of Ellagotannins on Intestinal Peptidase Activity in Rainbow Trout</article-title><trans-title-group xml:lang="ru"><trans-title>Воздействие эллаготанинов на активность пептидаз кишечника радужной форели</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mikryakov</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Микряков</surname><given-names>Д. В.</given-names></name></name-alternatives><email>ns_tarleva@ibiw.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Tarleva</surname><given-names>A. F.</given-names></name><name xml:lang="ru"><surname>Тарлева</surname><given-names>А. Ф.</given-names></name></name-alternatives><email>ns_tarleva@ibiw.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Papanin Institute for Вiology of Inland Waters RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН Институт биологии внутренних вод им. И.Д. Папанина РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-07-01" publication-format="electronic"><day>01</day><month>07</month><year>2023</year></pub-date><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>444</fpage><lpage>448</lpage><history><date date-type="received" iso-8601-date="2025-01-28"><day>28</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Д.В. Микряков, А.Ф. Тарлева</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Д.В. Микряков, А.Ф. Тарлева</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Д.В. Микряков, А.Ф. Тарлева</copyright-holder><copyright-holder xml:lang="ru">Д.В. Микряков, А.Ф. Тарлева</copyright-holder></permissions><self-uri xlink:href="https://medjrf.com/1026-3470/article/view/647747">https://medjrf.com/1026-3470/article/view/647747</self-uri><abstract xml:lang="en"><p id="idm45181325812672">The effect of ellagotannins on the activity of peptidases of the intestinal mucosa and chyme of trout was studied. Experimental groups of fish were fed with an additive based on ellagitannins (with an active substance content of 0.38, 0.76 and 1.14 g/kg of food). Sampling was carried out in 8 individuals from each group before the experiment, at 15, 30, 45 and 60 days. The study showed that ellagotannins, has a stimulating effect on the activity of peptidases. The maximum increase in the enzymatic activity in the experimental groups compared with the control group was recorded on day 45 of the experiment. A more significant increase in the activity of peptidases of the intestinal mucosa compared with chyme was established. It is concluded that ellagotannins stimulate the initial stage of cleavage of protein components of food.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324798816">Изучено влияние эллаготанинов на активность пептидаз слизистой оболочки кишечника и химуса форели. Опытным группам рыб давали корм с добавкой на основе эллаготанинов (с содержанием активного вещества 0.38, 0.76 и 1.14 г/кг корма). Отбор проб проводили у 8 особей из каждой группы перед началом эксперимента, на 15, 30, 45 и 60 сутки. Исследование показало, что эллаготанины, оказывают стимулирующий эффект на активность пептидаз. Максимальное увеличение ферментативной активности в опытных группах по сравнению с контрольной зафиксировано на 45 сут эксперимента. Установлено более значительное увеличение активности пептидаз слизистой оболочки кишечника, по сравнению с химусом. Сделан вывод, что эллаготанины стимулируют первоначальный этап расщепления белковых компонентов пищи.</p></trans-abstract><kwd-group xml:lang="en"><kwd>trout</kwd><kwd>ellagotannins</kwd><kwd>peptidases</kwd><kwd>intestinal mucosa</kwd><kwd>chyme</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>форель</kwd><kwd>эллаготанины</kwd><kwd>пептидазы</kwd><kwd>слизистая оболочка кишечника</kwd><kwd>химус</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Антонов В.К. Химия протеолиза. М.: Наука, 1983. 367 с.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Дегтярик С.М., Гребнева Е.И., Слободницкая Г.В., Бенецкая Н.А., Максимьюк Е.В., Беспалый А.В. 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