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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">izvestiiatimacad</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Тимирязевской сельскохозяйственной академии</journal-title><trans-title-group xml:lang="en"><trans-title>IZVESTIYA OF TIMIRYAZEV AGRICULTURAL ACADEMY</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-342X</issn><publisher><publisher-name>ФГБОУ ВО РГАУ-МСХА имени К.А. Тимирязева</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26897/0021-342X-2025-6-160-173</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestiiatimacad-1026</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, БИОЛОГИЯ И ВЕТЕРИНАРНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LIVESTOCK BREEDING, BIOLOGY AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Трансплантация in vivo эмбрионов в коневодстве: исторические данные и современное состояние</article-title><trans-title-group xml:lang="en"><trans-title>In vivo embryo transfer in horse breeding: historical data and current status</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2501-1235</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дюльгер</surname><given-names>Г. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyulger</surname><given-names>G. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Петрович Дюльгер, д-р ветеринар. наук, доцент, профессор</p><p>кафедра ветеринарной медицины</p><p>127434; ул. Тимирязевская, 49; Москва</p></bio><bio xml:lang="en"><p>Georgy P. Dyulger, DSc (Vet), Associate Professor, Professor</p><p>Department of Veterinary Medicine</p><p>127434; 49 Timiryazevskaya St.; Moscow</p></bio><email xlink:type="simple">dulger@rgau-msha.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>Лазарев</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lazarev</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Иванович Лазарев, канд. с.-х. наук, научный сотрудник, руководитель</p><p>143700; Московская область; Шаховская; Стариково</p></bio><bio xml:lang="en"><p>Dmitry I. Lazarev, CSc (Ag), Research Associate, Head</p><p>143700; Moscow Region; Shakovskaya; Starikovo</p></bio><email xlink:type="simple">dl@equinereproduction.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/0000-0002-6822-0013</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акчурин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Akchurin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Владимирович Акчурин, д-р ветеринар. наук, доцент, профессор</p><p>кафедра ветеринарной медицины</p><p>127434; ул. Тимирязевская, 49; Москва</p></bio><bio xml:lang="en"><p>Sergey V. Akchurin, DSc (Vet), Associate Professor, Professor</p><p>Department of Veterinary Medicine</p><p>127434; 49 Timiryazevskaya St.; Moscow</p></bio><email xlink:type="simple">sakchurin@rgau-msha.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/0000-0002-1975-2929</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акчурина</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Akchurina</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Владимировна Акчурина, канд. ветеринар. наук, доцент, доценткафедры</p><p>кафедра ветеринарной медицины</p><p>127434; ул. Тимирязевская, 49; Москва</p></bio><bio xml:lang="en"><p>Irina V. Akchurina, CSc (Vet), Associate Professor, Associate Professor at the Department</p><p>Department of Veterinary Medicine</p><p>127434; 49 Timiryazevskaya St.; Moscow</p></bio><email xlink:type="simple">akchurinaiv@rgau-msha.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/0000-0003-1548-9999</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бычков</surname><given-names>В. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bychkov</surname><given-names>V. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владислав Сергеевич Бычков, канд. ветеринар. наук, доцент</p><p>кафедра ветеринарной медицины</p><p>127434; ул. Тимирязевская, 49; Москва</p></bio><bio xml:lang="en"><p>Vladislav S. Bychkov, CSc (Vet), Associate Professor</p><p>Department of Veterinary Medicine</p><p>127434; 49 Timiryazevskaya St.; Moscow</p></bio><email xlink:type="simple">vlad91bd@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/0009-0008-4277-9709</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Свистунов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Svistounov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Валерьевич Свистунов, канд. ветеринар. наук, доцент</p><p>кафедра ветеринарной медицины</p><p>127434; ул. Тимирязевская, 49; Москва</p></bio><bio xml:lang="en"><p>Dmitriy V. Svistounov, CSc (Vet), Assistant</p><p>Department of Veterinary Medicine</p><p>127434; 49 Timiryazevskaya St.; Moscow</p></bio><email xlink:type="simple">dimitriisvist@mail.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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центр репродукции лошадей ООО «Хартли Хорс Хаус»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Center of Reproduction of Horses, Hartley Horse House, OOO</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>6</issue><fpage>160</fpage><lpage>173</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дюльгер Г.П., Лазарев Д.И., Акчурин С.В., Акчурина И.В., Бычков В.С., Свистунов Д.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Дюльгер Г.П., Лазарев Д.И., Акчурин С.В., Акчурина И.В., Бычков В.С., Свистунов Д.В.</copyright-holder><copyright-holder xml:lang="en">Dyulger G.P., Lazarev D.I., Akchurin S.V., Akchurina I.V., Bychkov V.S., Svistounov D.V.</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://izvestiia.timacad.ru/jour/article/view/1026">https://izvestiia.timacad.ru/jour/article/view/1026</self-uri><abstract><p>   Статья посвящена обзору биотехнологии производства и трансплантации эмбрионов in vivo в коневодстве. Согласно регистру IETS только за последние 5 лет в мировом коневодстве проведено 152815 эмбриотрансферов, подавляющее большинство которых (125017, или 81,81 %) выполнено с применением in vivo эмбрионов. Для подсадки применяют главным образом свежеполученные зародыши. Доля криотрансфера по сравнению с переносом свежеполученных эмбрионов ничтожно мала (0,48 % против 99,52 %). Зародыши от кобыл-доноров обычно получают без индукции суперовуляции, непосредственно из полости матки. Оптимальное время для вымывания эмбриона – 7–8-е сутки после овуляции. Катетеризацию шейки матки проводят через влагалище при помощи гибкого двухканального силиконового катетера с надувным баллончиком под контролем пальцев руки в одноразовой гинекологической перчатке. Эффективность вымывания эмбрионов достигает в среднем 50–65 %. Рекомендуется синхронизировать половой цикл донора с половым циклом 2–3 реципиентов, чтобы по крайней мере у одной из них овуляция наступила через 1–2 дня после овуляции кобылы-донора. Синхронизацию течки и овуляции можно вызвать с помощью препаратов различных фармакологических групп, обладающих прогестагенной (прогестерон, альтреногест) и/или лютеолитической (нативный простагландин F2a или его высокоактивный синтетический аналог – клопростенол) активностью, в сочетании с препаратами, запускающими овуляцию (деслорелин или ХГЧ). Пересадку зародышей в матку производят трансцервикально маноутеральным и визоутеральным способами. При первом (классическом) способе подсадки эмбриона в матку катетеризация цервикального канала проводится под мануальным контролем, при втором – с использованием двухстворчатого влагалищного зеркала с фиксацией нижней губы влагалищной части шейки матки гинекологическими щипцами Уилшера. Эффективность маноутерального (классического) способа при эмбриотрансфере свежеполученными эмбрионами достигает 65,5–77,8 %, по методу Уилшера – 90,9–93,4 %.</p></abstract><trans-abstract xml:lang="en"><p>   This article provides a review of the biotechnology concerning in vivo embryo production and transfer in the equine industry. According to the IETS registry, a total of 152,815 embryo transfers have been performed globally in horse breeding over the past five years alone, with the vast majority (125,017, or 81.81 %) utilizing in vivo embryos. Primarily, freshly recovered embryos are used for transfer. The proportion of cryopreserved embryo transfers remains negligible compared to fresh embryo transfers (0.48 % vs. 99.52 %). Embryos are typically recovered from donor mares without superovulation induction, directly from the uterine lumen. The optimal time for embryo flushing is 7–8 days post-ovulation. Cervical catheterization is performed transcervically, via the vagina, using a flexible double-lumen silicone catheter equipped with an inflatable cuff, under digital guidance (with a gloved hand). The average embryo recovery rate typically ranges from 50–65 %. It is recommended to synchronize the donor’s estrous cycle with those of 2–3 recipients, ensuring that at least one recipient ovulates 1–2 days after the donor mare. Estrus and ovulation synchronization can be induced using compounds from various pharmacological groups that possess progestagenic (e. g., progesterone, altrenogest) and/or luteolytic (e. g., native prostaglandin F2α or its highly active synthetic analog – cloprostenol) activity, often in combination with ovulation-inducing agents (e. g., deslorelin or hCG). Embryo transfer into the uterus is performed transcervically, using either the manual-uterine or visual-uterine technique. In the first (classical) technique of uterine embryo transfer, cervical canal catheterization is guided by manual control. The second technique involves using a Polansky speculum, with the ventral lip of the vaginal cervix stabilized by Wilshir cervical forceps. The efficiency of the manual-uterine (classical) technique for fresh embryo transfer achieves pregnancy rates of 65.5–77.8 %, whereas the Wilshir technique yields 90.9–93.4 %.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коневодство</kwd><kwd>лошади</kwd><kwd>вспомогательные репродуктивные технологии</kwd><kwd>in vivo</kwd><kwd>in vitro</kwd><kwd>эмбриотрансплантация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>horse breeding</kwd><kwd>assisted reproductive technology</kwd><kwd>in vivo</kwd><kwd>in vitro</kwd><kwd>embryo transfers</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">Дюльгер Г.П. 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