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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">biologyscience</journal-id><journal-title-group><journal-title xml:lang="ru">Тимирязевский биологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Timiryazev Biological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2949-4710</issn><publisher><publisher-name>ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева (ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26897/2949-4710-2025-3-2-4-04</article-id><article-id custom-type="elpub" pub-id-type="custom">biologyscience-247</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>4 - ЗООЛОГИЯ, ФИЗИОЛОГИЯ ЧЕЛОВЕКА И ЖИВОТНЫХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>4 - ZOOLOGY, HUMAN AND ANIMAL PHYSIOLOGY</subject></subj-group></article-categories><title-group><article-title>Первые результаты применения пищевых каротиноидов при выращивании молоди Lacerta media Lantz et Cyrén, 1920 (Lacertidae, Squamata)</article-title><trans-title-group xml:lang="en"><trans-title>The first results of the use of dietary carotenoids at growing of juveniles Lacerta media Lantz et Cyrén, 1920 (Lacertidae, Squamata)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1589-6340</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ерашкин</surname><given-names>Владимир Олегович</given-names></name><name name-style="western" xml:lang="en"><surname>Erashkin</surname><given-names>Vladimir Olegovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Олегович Ерашкин, ассистент кафедры зоологии, Федеральное государственное бюджетное образовательное учреждение высшего образования «Российский государственный аграрный университет – МСХА имени К.А. Тимирязева»; 127434, Россия, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Vladimir O. Erashkin, Assistant at the Department of Zoology, Russian State Agrarian University – Moscow Timiryazev Agricultural Academy; 49 Timiryazevskaya St., Moscow, 127434, Russian Federation</p></bio><email xlink:type="simple">v.erashkin@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/0009-0008-9441-3549</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Андреева</surname><given-names>Ксения Игоревна</given-names></name><name name-style="western" xml:lang="en"><surname>Andreeva</surname><given-names>Ksenia Igorevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ксения Игоревна Андреева, студент Института зоотехнии и биологии, Федеральное государственное бюджетное образовательное учреждение высшего образования «Российский государственный аграрный университет – МСХА имени К.А. Тимирязева»; 127434, Россия, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Ksenia I. Andreeva, student of the Institute of Animal Sciences and Biology, Russian State Agrarian University – Moscow Timiryazev Agricultural Academy; 49 Timiryazevskaya St., Moscow, 127434, Russian Federation</p></bio><email xlink:type="simple">andreeva.34215@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/0009-0005-6531-1760</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гуридова</surname><given-names>Дарья Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Guridova</surname><given-names>Daria Vladimirovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дарья Владимировна Гуридова, студент Института зоотехнии и биологии, Федеральное государственное бюджетное образовательное учреждение высшего образования «Российский государственный аграрный университет – МСХА имени К.А. Тимирязева»; 127434, Россия, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Daria V. Guridova, student of the Institute of Animal Sciences and Biology, Russian State Agrarian University – Moscow Timiryazev Agricultural Academy; 49 Timiryazevskaya St., Moscow, 127434, Russian Federation</p></bio><email xlink:type="simple">guridova04@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/0000-0001-9328-2470</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кидов</surname><given-names>Артём Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Kidov</surname><given-names>Artem Aleksandrovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артем Александрович Кидов, заведующий кафедрой зоологии, канд. биол. наук, профессор, Федеральное государственное бюджетное образовательное учреждение высшего образования «Российский государственный аграрный университет – МСХА имени К.А. Тимирязева»; 127434, Россия, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Artem A. Kidov, CSc (Bio), Professor, Head of the Department of Zoology, Russian State Agrarian University – Moscow Timiryazev Agricultural Academy; 49 Timiryazevskaya St., Moscow, 127434, Russian Federation</p></bio><email xlink:type="simple">kidov@rgau-msha.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный аграрный университет – МСХА имени К.А. Тимирязева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State Agrarian University – Moscow Timiryazev Agricultural Academy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>11</month><year>2025</year></pub-date><volume>3</volume><issue>2</issue><fpage>202532404</fpage><lpage>202532404</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ерашкин В.О., Андреева К.И., Гуридова Д.В., Кидов А.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ерашкин В.О., Андреева К.И., Гуридова Д.В., Кидов А.А.</copyright-holder><copyright-holder xml:lang="en">Erashkin V.O., Andreeva K.I., Guridova D.V., Kidov A.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.bioscience-journal.com/jour/article/view/247">https://www.bioscience-journal.com/jour/article/view/247</self-uri><abstract><p>Каротиноиды являются необходимыми веществами для организма животных, так как выполняют антиоксидантные функции и принимают участие в регулировании окраса. В связи с этим становится актуальной разработка методик применения синтетических и природных каротиноидов в кормлении. В работе представлены результаты изучения влияния каротиноидов при выращивании молоди средней ящерицы (Lacerta media). Животных (n = 24) разделяли поровну на две группы (контрольная и опытная), каждая группа выращивалась в трехкратной повторности. Перед началом эксперимента каждую особь метили, измеряли и взвешивали, а также фотографировали с дорсальной стороны тела. Ящерицы из опытной группы получали каротиноиды с пищей в каждое третье кормление путем обсыпания ими кормовых насекомых. По итогам исследований показано, что употребление каротиноидов в пищу не влияло на рост молоди средней ящерицы на протяжении всех периодов эксперимента. Однако при сравнении окраса особей по модели RGB выявлены статистически значимые отличия по параметрам синего и зеленого в течение всего эксперимента: контрольная группа превосходила по данному параметру опытную. Авторы считают, что данные отличия в окрасе обусловлены истощением у особей из контрольной группы верхнего пигментного слоя ксантофоров ввиду недостатка каротиноидов в пище, вследствие чего в окрасе преобладают сине-зеленые цвета, обусловленные действием нижележащего слоя иридофоров</p></abstract><trans-abstract xml:lang="en"><p>Carotenoids are essential substances for animal physiology, fulfilling antioxidant functions and participating in color regulation. Consequently, the development of methodologies for using synthetic and natural carotenoids in animal feeding is increasingly relevant. This study presents findings on the effects of carotenoids on the rearing of juvenile Lacerta media. Subjects (n = 24) were equally divided into two groups (control and experimental), with each group maintained in triplicate. Prior to the experiment, each individual was labeled, measured, and weighed, and a dorsal photograph was taken. Lizards in the experimental group received dietary carotenoid supplementation every third feeding via dusting of the insect prey. Results indicated that dietary carotenoid intake did not significantly affect the growth of juveniles Lacerta media across the experimental period. However, RGB model comparison of coloration revealed statistically significant differences in blue and green parameters throughout the study: the control group exhibited higher values for these parameters than the experimental group. The authors propose that these differences in coloration are attributable to the depletion of the upper xanthophore pigment layer in control group individuals due to carotenoid deficiency, resulting in a dominance of blue-green hues conferred by the underlying iridophore layer.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Настоящие ящерицы</kwd><kwd>окрас</kwd><kwd>рост</kwd><kwd>RGB</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Lacertidae</kwd><kwd>coloration</kwd><kwd>growth</kwd><kwd>RGB</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счёт средств Программы развития РГАУ – МСХА имени К.А. Тимирязева в рамках Программы стратегического академического лидерства «Приоритет-2030»</funding-statement><funding-statement xml:lang="en">The research was financially supported by the Program of Development of the Russian State Agrarian University – Moscow Timiryazev Agricultural Academy within the Program of Strategic Academic Leadership «Priority-2030».</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">Kiokias S., Gordon M.H. Dietary supplementation with a natural carotenoid mixture decreases oxidative stress. European journal of clinical nutrition. 2003;57(9):1135-1140. https://doi.org/10.1038/sj.ejcn.1601655</mixed-citation><mixed-citation xml:lang="en">Kiokias S., Gordon M.H. Dietary supplementation with a natural carotenoid mixture decreases oxidative stress. 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