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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">10.32634/0869-8155-2020-342-10-31-33</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-1332</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>РАЗВЕДЕНИЕ, СЕЛЕКЦИЯ, ГЕНЕТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BREEDING, GENETICS</subject></subj-group></article-categories><title-group><article-title>Особенности развития репродуктивной системы у самцов рода Ovis при межвидовой гибридизации</article-title><trans-title-group xml:lang="en"><trans-title>The features development of the reproductive system in interspecific hybrid males of the genus Ovis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волкова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>руководитель лаборатории, доктор биологических наук</p><p>п. Дубровицы, Московская область </p></bio><bio xml:lang="en"><p>Head of the laboratory, Doctor of Biological Sciences</p><p>142132, Moscow region, Podolsk district, Dubrovitsy, 60 </p></bio><email xlink:type="simple">natavolkova@inbox.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>Волкова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>старший научный сотрудник, кандидат биологических наук</p><p>п. Дубровицы, Московская область </p></bio><bio xml:lang="en"><p>Senior Researcher, Candidate of Biological Sciences</p><p>142132, Moscow region, Podolsk district, Dubrovitsy, 60 </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>Иолчиев</surname><given-names>Б. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Iolchiev</surname><given-names>B. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ведущий научный сотрудник, доктор биологических наук</p><p>п. Дубровицы, Московская область </p></bio><bio xml:lang="en"><p>Leading Researcher, Doctor of Biological Sciences</p><p>142132, Moscow region, Podolsk district, Dubrovitsy, 60 </p></bio><email xlink:type="simple">baylar1@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ Федеральный научный центр животноводства — ВИЖ имени академика Л.К. Эрнста</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ernst Federal Science Center for Animal Husbandry</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>09</day><month>12</month><year>2020</year></pub-date><volume>0</volume><issue>10</issue><fpage>31</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Волкова Н.А., Волкова Л.А., Иолчиев Б.С., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Волкова Н.А., Волкова Л.А., Иолчиев Б.С.</copyright-holder><copyright-holder xml:lang="en">Volkova N.A., Volkova L.A., Iolchiev B.S.</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/1332">https://www.vetpress.ru/jour/article/view/1332</self-uri><abstract><sec><title>Актуальность</title><p>Актуальность. Одной из основных проблем использования межвидовой гибридизации в животноводстве является снижение фертильности у межвидовых гибридов, особенно самцов. В этой связи изучение этапов развития, морфологии и биометрических параметров семенников самцов имеет большое значение для характеристики видовых особенностей сперматогенеза и развития вспомогательных репродуктивных технологий.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Целью исследования являлось изучение весовых,  морфологических и морфометрических параметров семенников межвидовых гибридов архара с овцами романовской породы в сравнении с исходной родительской  породой (романовская порода). Объектом исследований являлись чистопородные самцы романовской породы (n = 8) и межвидовые гибриды архара с овцами романовской  породы (n = 10) в возрасте 12 месяцев. Были изучены вес, морфометрические  параметры семенников, а также проведены гистологические исследования.  Статистический анализ был выполнен с использованием SPSS v.15.0. ANOVA и сравнением между группами с использованием T-критерия.</p></sec><sec><title>Результаты</title><p>Результаты. Установлено достоверное снижение у гибридных животных по сравнению с  чистопородными животными ряда показателей, характеризующих развитие и  созревание половых клеток, в частности веса, объема семенников, диаметра семенных канальцев и числа сперматогенных клеток в них на 41%, 24%, 21% и 9%, соответственно. Полученные результаты свидетельствуют о более позднем половом  созревании гибридных животных по сравнению с чистопородными сверстниками, что  необходимо учитывать при использовании генетических ресурсов диких видов животных в селекционных программах по получению новых селекционных форм сельскохозяйственных животных. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Relevance</title><p>Relevance. One of the main problems in the use of interspecific hybridization in animal husbandry is fertility decreasing in interspecific hybrids, especially males. In this regard, the study of the stages of development, morphology and biometric parameters of male testes is of great importance for characterizing the species characteristics of spermatogenesis and the development of assisted reproductive technologies.</p></sec><sec><title>Material and methods</title><p>Material and methods. The aim of the research was to study the weight, morphological and morphometric parameters of the testes from interspecific hybrids of argali with sheep of the Romanov breed in comparison with the original parental breed (Romanov breed). The object of research was purebred Romanov’ rams (n = 8) and interspecific hybrids of argali with the Romanov breed ewes (n = 10) at the age of 12 months. The weight, morphometric parameters of the testes, and also histological examination were studied. Statistical analysis was performed using SPSS v.15.0. ANOVA and comparison between groups were carried out using T-test.</p></sec><sec><title>Results</title><p>Results. A significant decrease in a number of indicators characterizing the development and maturation of germ cells, in particular, the weight, volume of the testes, the diameter of the seminiferous tubules and the number of spermatogenic cells in them by 41%, 24%, 21% and 9%, was established in hybrid animals as compared to purebred animals. The obtained results indicated a later sexual maturation in hybrid animals compared to purebred peers. It must be taken into account when using the genetic resources of wild animal species in breeding programs for obtaining new breeding forms of farm animals. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бараны</kwd><kwd>архар</kwd><kwd>межвидовые гибриды</kwd><kwd>романовская порода</kwd><kwd>семенники</kwd><kwd>сперма</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rams</kwd><kwd>argali</kwd><kwd>interspecific hybrids</kwd><kwd>Romanov breed</kwd><kwd>testes</kwd><kwd>sperm</kwd><kwd>semen</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены при финансовой поддержке Министерства науки и высшего образования РФ, тема № АААА-А18–118021590132-9.</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">Багиров В.А., Кленовицкий П.М., Иолчиев Б.С. Отдаленная гибридизация в овцеводстве. 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