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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/issn2072-2419.2025.3.411</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1835</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>БИОХИМИЯ, МОРФОЛОГИЯ, ФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCHEMISTRY, ANATOMY, PHYSIOLOGY</subject></subj-group></article-categories><title-group><article-title>Содержания малонового диальдегида в тканях золотистой форели (Oncorchynchus mykiss) при обогащении кормов органоминеральными хелатными комплексами</article-title><trans-title-group xml:lang="en"><trans-title>The content of malonic dialdehyde in the tissues of golden trout (Oncorchynchus mykiss) when foraging with organomineral chelate complexes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1977-0913</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полистовская</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Polistovskaya</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук., доц. каф. биохимии и физиологии</p></bio><bio xml:lang="en"><p>PhD., associate Professor of the Department of Biochemistry and Physiology</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/0000-0002-2781-5993</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карпенко</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Karpenko</surname><given-names>L. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р биол. наук, проф., зав. каф. биохимии и физиологии </p></bio><bio xml:lang="en"><p>Doctor of Biological Sciences, Professor, Head of the Department. Biochemistry and physiology</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/0000-0002-7484-3591</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Махнин</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Makhnin</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант 2-го года обучения, асс. каф. биохимии и физиологии </p></bio><bio xml:lang="en"><p>post-graduate student of the 2st year of study, assistant of the Department of Biochemistry and Physiology</p></bio><email xlink:type="simple">ilya.makh@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО “Санкт-Петербургский государственный университет ветеринарной медицины”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State University of Veterinary Medicine</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>411</fpage><lpage>418</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Полистовская П.А., Карпенко Л.Ю., Махнин И.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Полистовская П.А., Карпенко Л.Ю., Махнин И.А.</copyright-holder><copyright-holder xml:lang="en">Polistovskaya P.A., Karpenko L.Y., Makhnin I.A.</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/1835">https://vetjournal.spbguvm.ru/jour/article/view/1835</self-uri><abstract><p>Активность антиоксидантных ферментов зависит от ряда переменных в т.ч. содержания нутриентов в рационе. Для нормализации минеральной компоненты рационов предлагается применять различные металлсодержащие препараты в т.ч хелатные (внутрикомплексные) соединения. Рядом исследований продемонстрировано, что хелатные соединения обладают большей биодоступностью в сравнении с неорганическими источниками микроэлементов.</p><p>Целью исследования явилось изучение влияния хелатного комплекса на процессы свободно-радикального окисления в организме форели, путем определения активности каталазы и содержания малонового альдегида. Исследовали органоминеральный хелатный комплекса (ООО “Юпитер”, Россия). Действующая основа минеральной добавки: комплекс этилендиаминдиянтарной кислоты и лизина с микроэлементами (Fe, Mn, Cu, Zn, Co, Se, I). Рыбам опытных групп (n=10) в течение 30-ти дней задавали добавку, данные сравнивали с контролем (n=10). Хелатный комплекс задавали вместе с кормом один раз в день, в концентрации 0,5 г/кг (считая от массы корма). Определяли активность каталазы и концентрацию малонового альдегида в печени и мышцах. Применение органоминеральных хелатных комплексов приводило к снижению содержания малонового диальдегида в печени и скелетных мышцах. Снижение продуктов перекисного окисления липидов сопровождалось значимым увеличением активности каталазы. Проведенные исследования позволяют предположить, что металлы в составе хелатных комплексов приводят к увеличению активности антиоксидантных ферментов, в результате чего происходит снижение продуктов перекисного окисления липидов. Таким образом полученные результаты служат косвенным подтверждением эффективности применения органоминеральных хелатных комплексов в индустриальной аквакультуре.</p></abstract><trans-abstract xml:lang="en"><p>The activity of antioxidant enzymes depends on a number of variables, including the content of nutrients in the diet. To normalize the mineral component of diets, it is proposed to use various metal-containing preparations, including chelated (intracomplex) compounds. A number of studies have demonstrated that chelated compounds have greater bioavailability compared to inorganic sources of trace elements.</p><p>The aim of the study was to study the effect of the chelate complex on the processes of free radical oxidation in trout by determining the activity of catalase and the content of malonic aldehyde. An organomineral chelate complex (Jupiter LLC, Russia) was investigated. The active base of the mineral supplement is a complex of ethylenediaminediantharic acid and lysine with trace elements (Fe, Mn, Cu, Zn, Co, Se, I). Fish of the experimental groups (n=10) were given the supplement for 30 days; the data were compared with the control (n=10). The chelate complex was administered together with the feed once a day, at a concentration of 0.5 g/ kg (counting from the weight of the feed). The activity of catalase and the concentration of malonic aldehyde in the liver and muscles were determined. The use of organomineral chelate complexes led to a decrease in the content of malondialdehyde in the liver and skeletal muscles. A decrease in lipid peroxidation products was accompanied by a significant increase in catalase activity. The conducted studies suggest that metals in the composition of chelate complexes lead to an increase in the activity of antioxidant enzymes, resulting in a decrease in lipid peroxidation products. Thus, the results obtained serve as an indirect confirmation of the effectiveness of the use of organomineral chelate complexes in industrial aquaculture.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хелатные комплексы</kwd><kwd>форель</kwd><kwd>малоновый альдегид</kwd><kwd>каталаза</kwd><kwd>антиоксидантная система</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chelate complexes</kwd><kwd>trout</kwd><kwd>malonic aldehyde</kwd><kwd>catalase</kwd><kwd>antioxidant system</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке гранта Российского научного фонда 23-76-01042, https://rscf.ru/project/23-76-01042/</funding-statement><funding-statement xml:lang="en">The study was supported by a grant from the Russian Science Foundation 23-76-01042, https://rscf.ru/project/23-76-01042/</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">Марченко Ирина Сергеевна Развитие аквакультуры как фактор обеспечения продовольственной безопасности // Евразийский Союз Ученых. 2015. №11-4 (20).</mixed-citation><mixed-citation xml:lang="en">Irina Sergeevna Marchenko Development of aquaculture as a factor of ensuring food security // The Eurasian Union of Scientists. 2015. №11-4 (20).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Martos-Sitcha, Juan Antonio et al. “Editorial: Welfare and Stressors in Fish: Challenges Facing Aquaculture.” Frontiers in physiology vol. 11 162. 25 Feb. 2020, doi:10.3389/fphys.2020.00162</mixed-citation><mixed-citation xml:lang="en">Martos-Sitcha, Juan Antonio et al. “Editorial: Welfare and Stressors in Fish: Challenges Facing Aquaculture.” Frontiers in physiology vol. 11 162. 25 Feb. 2020, doi:10.3389/fphys.2020.00162</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Zengin, H. 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