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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">10.32634/0869-8155-2025-396-07-39-47</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3738</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOTECHNICS</subject></subj-group></article-categories><title-group><article-title>Влияние хвойно-энергетической добавки на антиоксидантный статус и белковый обмен у коров в транзитный период</article-title><trans-title-group xml:lang="en"><trans-title>Effect of a coniferous energy additive on antioxidant status and protein metabolism in cows during the transit period</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5085-8273</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайцев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaitsev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Владимирович Зайцев, доктор биологических наук, профессор, заведующий кафедрой биоэкологии и физиологии сельскохозяйственных животных</p><p>ул. Учебная, 2, Кинель, Самарская обл., 446442</p></bio><bio xml:lang="en"><p>Vladimir Vladimirovich Zaitsev, Doctor of Biological Sciences, Professor, Head of the Department of Bioecology and Physiology of Farm Animals</p><p>2 Uchebnaya Str., Kinel, Samara Region, 446442</p></bio><email xlink:type="simple">Zaycev_vv1964@mail.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/0000-0002-0520-7022</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боголюбова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogolyubova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Владимировна Боголюбова, доктор биологических наук, заведующий отделом физиологии и биохимии сельскохозяйственных животных</p><p>пос. Дубровицы, 60, г. о. Подольск, Московская обл., 142132</p></bio><bio xml:lang="en"><p>Nadezhda Vladimirovna Bogolyubova, Doctor of Biological Sciences, Head of the Department of Physiology and Biochemistry of Farm Animals</p><p>60 Dubrovitsy, Podolsk, Moscow region, 142132</p></bio><email xlink:type="simple">652202@mail.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/0000-0002-9597-6836</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Короткий</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Korotky</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Василий Павлович Короткий, директор</p><p>Нижне-Волжская набережная, 6/1, Нижний Новгород, 603001</p></bio><bio xml:lang="en"><p>Vasily Pavlovich Korotky, Director</p><p>6/1 Nizhne-Volzhskaya naberezhnaya, Nizhny Novgorod, 603001</p></bio><email xlink:type="simple">himinvest@sandy.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1996-5294</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайцева</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaitseva</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лилия Михайловна Зайцева, кандидат сельскохозяйственных наук</p><p>ул. Учебная, 2, Кинель, Самарская обл., 446442</p></bio><bio xml:lang="en"><p>Liliya Mikhailovna Zaitseva, Candidate of Agricultural Sciences</p><p>2 Uchebnaya Str., Kinel, Samara Region, 446442</p></bio><email xlink:type="simple">lilyazaytseva75@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кичапов</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kichapov</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кирилл Алексеевич Кичапов, аспирант</p><p>ул. Учебная, 2, Кинель, Самарская обл., 446442</p></bio><bio xml:lang="en"><p>Kirill Alekseevich Kichapov, Graduate Student</p><p>2 Uchebnaya Str., Kinel, Samara Region, 446442</p></bio><email xlink:type="simple">Metelev98@list.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/0000-0001-8275-9915</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рыжов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryzhov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктор Анатольевич Рыжов, начальник отдела</p><p>Нижне-Волжская набережная, 6/1, Нижний Новгород, 603001</p></bio><bio xml:lang="en"><p>Viktor Anatolyevich Ryzhov, Head of Department</p><p>6/1 Nizhne-Volzhskaya naberezhnaya, Nizhny Novgorod, 603001</p></bio><email xlink:type="simple">woodnn@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Самарский государственный аграрный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara State Agrarian University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный исследовательский центр животноводства — ВИЖ им. академика Л.К. Эрнста</institution><country>Россия</country></aff><aff xml:lang="en"><institution>L.K. Ernst Federal Research Center for Animal Husbandry</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО Научно-технический центр «Химинвест»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC Scientific and Technical Center “Khiminvest”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>31</day><month>07</month><year>2025</year></pub-date><volume>0</volume><issue>7</issue><fpage>39</fpage><lpage>47</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Зайцев В.В., Боголюбова Н.В., Короткий В.П., Зайцева Л.М., Кичапов К.А., Рыжов В.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Зайцев В.В., Боголюбова Н.В., Короткий В.П., Зайцева Л.М., Кичапов К.А., Рыжов В.А.</copyright-holder><copyright-holder xml:lang="en">Zaitsev V.V., Bogolyubova N.V., Korotky V.P., Zaitseva L.M., Kichapov K.A., Ryzhov V.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://www.vetpress.ru/jour/article/view/3738">https://www.vetpress.ru/jour/article/view/3738</self-uri><abstract><p>В статье представлены результаты исследований по изучению влияния хвойно-энергетической добавки на основе биомассы леса на показатели антиоксидантной защиты молочных коров в транзитный период. В период после отела коровы часто испытывают дефицит энергии, что заставляет организм использовать жировые запасы. Этот процесс сопровождается повышением уровня перекиси липидов и активных форм кислорода, а также снижением количества антиоксидантов, что вызывает окислительный стресс. Включение в рацион коров хвойной энергетической добавки оказывает благоприятное влияние на антиоксидантную систему их организма. Это проявляется в увеличении концентрации водорастворимых антиоксидантов, церулоплазмина и альбумина в сыворотке крови, а также в повышении активности глутатионпероксидазы и супероксиддисмутазы. Наряду с этим наблюдается снижение активности печеночных ферментов (АЛТ и АСТ) и содержания мочевины. Включение в рацион коров хвойно-энергетической добавки (ХЭД) способствует улучшению здоровья животных, повышая их антиоксидантную защиту и нормализуя белковый обмен. Это особенно важно в транзитный период, когда коровы подвержены окислительному стрессу.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of studies on the effect of a coniferous energy supplement based on forest biomass on the antioxidant protection indicators of dairy cows during the transition period. In the period after calving, cows often experience energy deficiency, which forces the body to use fat reserves. This process is accompanied by an increase in the level of lipid peroxides and reactive oxygen species, as well as a decrease in the amount of antioxidants. This results in oxidative stress. Inclusion of a coniferous energy supplement in the diet of cows has a beneficial effect on the antioxidant system of their body. This is manifested in an increase in the concentration of water-soluble antioxidants, ceruloplasmin and albumin in the blood serum, as well as an increase in the activity of glutathione peroxidase and superoxide dismutase. Along with this, a decrease in the activity of liver enzymes (ALT and AST) and urea content is observed. Feeding cows with a coniferous energy supplement (CES) improves the health of animals by increasing their antioxidant protection and normalizing protein metabolism. This is especially important during the transition period, when cows are subject to oxidative stress.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хвойно-энергетическая добавка</kwd><kwd>коровы</kwd><kwd>окислительный стресс</kwd><kwd>антиоксиданты</kwd><kwd>белковый обмен</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Pine-energy supplement</kwd><kwd>cows</kwd><kwd>oxidative stress</kwd><kwd>antioxidants</kwd><kwd>protein 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">Морозова Л.А., Миколайчик И.Н., Морозов В.А., Булыгина Е.Н. 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