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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/issn2072-2419.2024.2.268</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1398</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>АКУШЕРСТВО, ГИНЕКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OBSTETRICS, GYNECOLOGY</subject></subj-group></article-categories><title-group><article-title>Применение сурфагона для индукции овуляции кобыл в циклах ВРТ</article-title><trans-title-group xml:lang="en"><trans-title>The use of surfagon for the induction of ovulation of mares in ART cycles</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9845-1691</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калашников</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalashnikov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>акад. РАН, д-р с.-х. наук, проф., науч. рук. ФГБНУ «ВНИИконеводства» </p></bio><bio xml:lang="en"><p>acad. RAS, Doctor of Agricultural Sciences, prof., Scientific director    </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/0000-0001-6960-5233</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>Л. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>L. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р с.-х. наук, доц., зав. лаб. физиологии</p></bio><bio xml:lang="en"><p>Doctor. Agricultural Sciences, Associate Professor, Head. Of the lab. Physiology  </p></bio><email xlink:type="simple">Lebedeva-L18@yandex.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/0000-0003-3495-3478</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Солодова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Solodova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, ст. науч. сотр.</p></bio><bio xml:lang="en"><p>Candidate of Biol. Sciences, scientific co-workers </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Красильникова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasilnikova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> вет. врач </p></bio><bio xml:lang="en"><p> veterinarian </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Всероссийский научно-исследовательский институт коневодства»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Institute "The All-Russian Research Institute for Horse Breeding"</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Поворот ВП»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>«Povorot» VP LLC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2024</year></pub-date><volume>0</volume><issue>2</issue><fpage>268</fpage><lpage>275</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Калашников В.В., Лебедева Л.Ф., Солодова Е.В., Красильникова Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Калашников В.В., Лебедева Л.Ф., Солодова Е.В., Красильникова Е.А.</copyright-holder><copyright-holder xml:lang="en">Kalashnikov V.V., Lebedeva L.F., Solodova E.V., Krasilnikova E.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/1398">https://vetjournal.spbguvm.ru/jour/article/view/1398</self-uri><abstract><p>С целью прогнозирования сроков овуляции кобыл для получения зрелых ооцитов и фолликулярной жидкости в циклах вспомогательных репродуктивных технологий (ВРТ) применяли отечественный аналог ГнРГ сурфагон в двух дозах (40 и 50 мкг) на фоне сравнения с эффективностью ранее применяемого препарата ХГЧ. Инъекции сурфагона проводили внутримышечно при достижении лидирующим фолликулом диаметра 35 мм и более, наличии максимального или начавшего снижаться отёка матки. Анализ продолжительности интервалов между внутримышечной инъекцией 40 мкг и 50 мкг препарата и овуляцией показал, что в промежутке между 37 и 48 часами после инъекции происходит 72,4 и 35% овуляций, соответственною. Результат применения 40 мкг сурфагона аналогичен результатам применения ХГЧ - 72 и 74% овуляций в данном промежутке, соответственно. Следовательно, препарат «Сурфагон» в дозе 40 мкг наиболее приемлем для применения в циклах ВРТ. Всего 3,4% овуляций после применения 40 мкг сурфагона происходит в интервале до 24 часов после инъекции. Поэтому его применение позволяет планировать забор фолликулярной жидкости и ооцита из преовуляторного фолликула методом OPU через 24 часа. Отечественный препарат Сурфагон (люлеберин ацетат, ЗАО «Мосагроген», Москва) эффективен для индукции овуляции у кобыл и может служить альтернативой использованию ХГЧ и импортных аналогов ГнРГ как в обычной практике воспроизводства, так и в планировании процедур OPU с целью забора фолликулярной жидкости и извлечения ооцитов.</p></abstract><trans-abstract xml:lang="en"><p>In order to predict the timing of ovulation in mares, to obtain mature oocytes and follicular fluid in ART cycles, the domestic analogue of GnRH surfagon was used in two doses (40 and 50 mcg) against the background of comparison with the effectiveness of the previously used hCG drug. Surfagon injections were carried out intramuscularly when the leading follicle reached a diameter of 35 mm or more, and there was maximum or decreased edema of the uterus. An analysis of the duration of the intervals between intramuscular injection of 40 µg and 50 µg of the drug and ovulation showed that 72.4 and 35% of ovulations occur, respectively, between 37 and 48 hours after injection. The result of using 40 µg of surfagon is similar to the results of using hCG - 72 and 74% of ovulations in this period, respectively. Therefore, the drug “Surfagon” at a dose of 40 µg is most suitable for use in ART cycles. Only 3.4% of ovulations after the use of 40 µg of surfagon occur in the interval up to 24 hours after injection. Therefore, its use allows planning the collection of follicular fluid and oocyte from the preovulatory follicle using the OPU method after 24 hours. The domestic drug Surfagon (lyuleberin acetate, CJSC Mosagrogen, Moscow) is effective for the induction of ovulation in mares and can serve as an alternative to the use of HCG and imported GnRH analogues both in normal reproduction practice and in planning OPU procedures for the purpose of follicular fluid intake and oocyte extraction.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гонадотропный рилизинг гормон</kwd><kwd>люлеберин ацетат</kwd><kwd>сурфагон</kwd><kwd>хорионический гонадотропин человека</kwd><kwd>эструс</kwd><kwd>диаметр фолликула</kwd><kwd>интервал до овуляции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gonadotropic releasing hormone</kwd><kwd>luleberin acetate</kwd><kwd>surfagon</kwd><kwd>human chorionic gonadotropin</kwd><kwd>estrus</kwd><kwd>follicle diameter</kwd><kwd>interval before ovulation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Материалы подготовлены в рамках конкурса Российского научного фонда 2022 года «Проведение фундаментальных научных исследований и поисковых научных исследований отдельными научными группами» (Проект № 23-16-00226).</funding-statement><funding-statement xml:lang="en">The materials were prepared within the framework of the 2022 competition of the Russian Science Foundation "Conducting fundamental scientific research and exploratory scientific research by individual scientific groups" (Project No. 23-16- 00226).</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">Bøgh,I.B., Bézard, J., Duchamp, G., Baltsen, M., Gérard, N., Daels, P., Greve.T. 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