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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">10.32634/0869-8155-2025-401-12-85-92</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3939</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>Продуктивность и иммунная реактивность мелкого рогатого скота разных генотипов</article-title><trans-title-group xml:lang="en"><trans-title>Productivity and immune reactivity of small cattle with different genotypes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2150-2192</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оздемиров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ozdemirov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алимсолтан Ахмедович Оздемиров, кандидат биологических наук, заведующий лабораторией геномных исследований, селекции и племенного дела </p><p>ул. Абдуразака Шахбанова, 30, Махачкала, 367014 </p></bio><bio xml:lang="en"><p>Alimsoltan Akhmedovich Ozdemirov, Candidate of Biological Sciences, Head of the Laboratory of Genomic Research, Selection and Breeding </p><p>30 Abdurazak Shakhbanov Str., Makhachkala, 367014 </p></bio><email xlink:type="simple">alim72@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/0000-0002-5682-6712</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акаева</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Akayeva</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рабият Алибулатовна Акаева, научный сотрудник </p><p>ул. Абдуразака Шахбанова, 30, Махачкала, 367014 </p></bio><bio xml:lang="en"><p>Rabiyat Alibulatovna Akayeva, Research Associate </p><p>30 Abdurazak Shakhbanov Str., Makhachkala, 367014 </p></bio><email xlink:type="simple">akaeva111r@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1728-2844</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гусейнова</surname><given-names>З. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Huseynova</surname><given-names>Z. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зухра Магомедовна Гусейнова, научный сотрудник </p><p>ул. Абдуразака Шахбанова, 30, Махачкала, 367014 </p></bio><bio xml:lang="en"><p>Zukhra Magomedovna Huseynova, Research Associate </p><p>30 Abdurazak Shakhbanov Str., Makhachkala, 367014 </p></bio><email xlink:type="simple">makki-2016@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/0000-0002-1482-417X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алиева</surname><given-names>П. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Alieva</surname><given-names>P. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Патимат Омаровна Алиева, научный сотрудник </p><p>ул. Абдуразака Шахбанова, 30, Махачкала, 367014 </p></bio><bio xml:lang="en"><p>Patimat Omarovna Alieva, Research Associate </p><p>30 Abdurazak Shakhbanov Str., Makhachkala, 367014 </p></bio><email xlink:type="simple">alieve.patimat.2018@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральный аграрный научный центр Республики Дагестан<country>Россия</country></aff><aff xml:lang="en">Federal Agrarian Scientific Center of the Republic of Dagestan<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>12</month><year>2025</year></pub-date><volume>0</volume><issue>12</issue><fpage>85</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Оздемиров А.А., Акаева Р.А., Гусейнова З.М., Алиева П.О., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Оздемиров А.А., Акаева Р.А., Гусейнова З.М., Алиева П.О.</copyright-holder><copyright-holder xml:lang="en">Ozdemirov A.A., Akayeva R.A., Huseynova Z.M., Alieva P.O.</copyright-holder><license 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/3939">https://www.vetpress.ru/jour/article/view/3939</self-uri><abstract><p>Современные методы породообразования в животноводстве актуализируют задачу изучения влияния генетических факторов на продуктивные качества сельскохозяйственных животных. В рамках настоящего исследования проведен анализ взаимосвязи полиморфизма генов-кандидатов с показателями мясной продуктивности и иммунного статуса у овец. Методом ПЦР-ПДРФ осуществлено генотипирование по локусам GH, GDF9 и CAST в выборке горных дагестанских овец. Установлены статистически значимые ассоциации между генетическими вариантами и изучаемыми признаками. Животные с генотипами GH/HaeIII AB и GDF9/AsplEIAA характеризовались повышенным уровнем CD4+-лимфоцитов и сниженным содержанием CD8+-клеток, что обусловило более высокие значения иммунорегуляторного индекса по сравнению с носителями генотипов GH/HaeIII AA и GDF9/AsplEIGG. В ходе анализа продуктивных качеств выявлено преимущество генотипа CASTMM над CASTMN по показателям живой массы. Аналогичная закономерность установлена для генотипа GHAA в сравнении с GHAB. Полученные данные демонстрируют перспективность использования молекулярно-генетических маркеров в селекционных программах для одновременного улучшения продуктивных характеристик и укрепления иммунного статуса овец. </p></abstract><trans-abstract xml:lang="en"><p>Modern methods of breed formation in animal husbandry underscore the importance of studying the influence of genetic factors on the productive qualities of farm animals. This research analyzes the association between candidate gene polymorphisms and meat productivity indicators and immune status in sheep. Genotyping of the GH, GDF9, and CAST loci was performed using the PCR-RFLP method in a sample of Dagestan Mountain sheep. Statistically significant associations were established between the genetic variants and the traits under study. Animals with the GH/HaeIII AB and GDF9/AsplEI AA genotypes were characterized by an increased level of CD4+ lymphocytes and a reduced content of CD8+ cells, resulting in higher values of the immunoregulatory index compared to carriers of the GH/HaeIII AA and GDF9/AsplEI GG genotypes. Analysis of productive qualities revealed the advantage of the CAST MM genotype over CAST MN in terms of live weight. A similar pattern was established for the GH AA genotype compared to GH AB. The obtained data demonstrate the promise of using molecular genetic markers in breeding programs for the simultaneous improvement of both productive characteristics and the immune status of sheep. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>селекция маркеров</kwd><kwd>генотипирование</kwd><kwd>мелкий рогатый скот</kwd><kwd>иммунная реактивность</kwd><kwd>продуктивность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>marker selection</kwd><kwd>genotyping</kwd><kwd>small ruminants</kwd><kwd>immune reactivity</kwd><kwd>productivity</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Статья подготовлена в рамках выполнения темы государственного задания ФГБНУ «Федеральный аграрный научный центр Республики Дагестан “Совершенствование племенных и продуктивных качеств районированных пород молочного и мясного скота, овец на основе методов геномной селекции”» № ФНМН-2023-0012.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The article was prepared as part of the implementation of the topic of the state assignment of the Federal State Budgetary Budgetary Institution «Federal Agrarian Scientific Center of the Republic of Dagestan “Improving the breeding and productive qualities of zoned breeds of dairy and beef cattle, sheep based on genomic breeding methods”» No. FNMN-2023-0012.</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">Rani C. et al. Genetic variation in host immune response to major infectious diseases in bovines and its application in animal breeding: a review. Exploratory Animal and Medical Research. 2023; 13(2): 146‒157. https://doi.org/10.52635/eamr/13.2.146-157</mixed-citation><mixed-citation xml:lang="en">Rani C. et al. Genetic variation in host immune response to major infectious diseases in bovines and its application in animal breeding: a review. Exploratory Animal and Medical Research. 2023; 13(2): 146‒157. https://doi.org/10.52635/eamr/13.2.146-157</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Kosimov M.A., Yuldashbaev Yu.A., Kosimov A.M., Pogosyan G.A., Mamedov A.A.оgl. Trends in the development of sheep breeding in the world. Sheep, goats, wool business. 2025; (1): 3–5 (in Russian). https://doi.org/10.26897/2074-0840-2025-1-3-5</mixed-citation><mixed-citation xml:lang="en">Косимов М.А., Юлдашбаев Ю.А., Косимов А.М., Погосян Г.А., Мамедов А.А.оглы. Тенденции развития овцеводства в мире. Овцы, козы, шерстяное дело. 2025; (1): 3–5. https://doi.org/10.26897/2074-0840-2025-1-3-5</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Chernobay E.N., Rezun N.A., Onishchenko O.N., Ismailov I.S. Current state and methods of increasing sheep productivity. Genomics and biotechnology in agriculture: a collection of scientific articles based on the materials of the plenary session of the 88th scientific and practical conference of the Stavropol State Agricultural University “Agrarian Science — to the North Caucasus Federal Districtt”. Stavropol: Stavropol State Agrarian University. 2023; 48–52 (in Russian). https://elibrary.ru/crjwgj</mixed-citation><mixed-citation xml:lang="en">Чернобай Е.Н., Резун Н.А., Онищенко О.Н., Исмаилов И.С. Современное состояние и методы повышения продуктивности овец. Геномика и биотехнологии в сельском хозяйстве: сборник научных статей по материалам пленарного заседания 88-й научно-практической конференции ФГБОУ ВО «Ставропольский ГАУ» «Аграрная наука — Северо-Кавказскому федеральному округу». Ставрополь: Ставропольский государственный аграрный университет. 2023; 48–52. https://elibrary.ru/crjwgj</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Samusenko L.D., Mamaev A.V., Khimicheva S.N., Rodina N.D., Sergeeva E.Yu. A model of bioenergetic assessment and forecasting of wool productivity in sheep breeding. Agrarian science. 2025; (9): 54–61 (in Russian). https://doi.org/10.32634/0869-8155-2025-398-09-54-61</mixed-citation><mixed-citation xml:lang="en">Самусенко Л.Д., Мамаев А.В., Химичева С.Н., Родина Н.Д., Сергеева Е.Ю. Модель биоэнергетической оценки и прогнозирования шерстной продуктивности в овцеводстве. Аграрная наука. 2025; (9): 54–61. https://doi.org/10.32634/0869-8155-2025-398-09-54-61</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Yuldashbaev Yu.A., Korneenko-Zhilyaeva S.A., Pakhomova E.V., Naumenko I.B. Prospects for the development of meat and dairy sheep breeding. Zootechnical and veterinary science — the basis for the innovative development of animal husbandry in Russia. Collection of articles, based on the materials of the All-Russian scientific and practical conference with international participation, dedicated to the 90th anniversary of the founding of the Institute of Animal Science and Biology of the Russian State Agrarian University — Moscow Agricultural Academy named after K.A. Timiryazev. Moscow: Russian State Agrarian University — Moscow Timiryazev Agricultural Academy. 2024; 128–133 (in Russian). https://elibrary.ru/nqqphm</mixed-citation><mixed-citation xml:lang="en">Юлдашбаев Ю.А., Корнеенко-Жиляева С.А., Пахомова Е.В., Науменко И.Б. Перспективы развития мясного и молочного овцеводства. Зоотехническая и ветеринарная наука — основа инновационного развития животноводства России. Сборник статей по материалам Всероссийской научно-практической конференции с международным участием, посвященной 90-летию со дня образования Института зоотехнии и биологии РГАУ–МСХА им. К.А. Тимирязева. М.: Российский государственный аграрный университет — МСХА им. К.А. Тимирязева. 2024; 128–133. https://elibrary.ru/nqqphm</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Eusebi P.G., Martinez A., Cortes O. Genomic Tools for Effective Conservation of Livestock Breed Diversity. Diversity. 2019; 12(1): 8. https://doi.org/10.3390/d12010008</mixed-citation><mixed-citation xml:lang="en">Eusebi P.G., Martinez A., Cortes O. Genomic Tools for Effective Conservation of Livestock Breed Diversity. Diversity. 2019; 12(1): 8. https://doi.org/10.3390/d12010008</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Galanova E.S., Bobryshov S.S., Karpova E.D. Current trends and prospects for the development of sheep breeding productivity by crossing domestically selected ewes with imported rams. Promising developments of young scientists in the field of veterinary medicine, production and processing of agricultural products. Stavropol: Stavropol State Agrarian University. 2024; 103–108 (in Russian). https://elibrary.ru/tdvohv</mixed-citation><mixed-citation xml:lang="en">Галанова Е.С., Бобрышов С.С., Карпова Е.Д. Современные тенденции и перспективы развития продуктивности овцеводства при скрещивании маток отечественной селекции с баранами импортных пород. Перспективные разработки молодых ученых в области ветеринарии, производства и переработки сельскохозяйственной продукции. Ставрополь: Ставропольский государственный аграрный университет. 2024; 103–108. https://elibrary.ru/tdvohv</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Golaev Sh.Kh., Galanova E.S., Bondar A.V., Filipenkova V.A. Prospects for linear breeding in sheep breeding. Promising developments of young scientists in the field of veterinary medicine, production and processing of agricultural products. Stavropol: Stavropol State Agrarian University. 2024; 48–51 (in Russian). https://elibrary.ru/bcssvx</mixed-citation><mixed-citation xml:lang="en">Голаев Ш.Х., Галанова Е.С., Бондарь А.В., Филипенкова В.А. Перспективы линейного разведения в овцеводстве. Перспективные разработки молодых ученых в области ветеринарии, производства и переработки сельскохозяйственной продукции. Ставрополь: Ставропольский государственный аграрный университет. 2024; 48–51. https://elibrary.ru/bcssvx</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Abdurasulov A.Kh., Kalandarov M.A., Rebezov M.B., Kosilov V.I. Live weight and body features of Ala-Too sheep. Agrarian science. 2025; (10): 71–80 (in Russian). https://doi.org/10.32634/0869-8155-2025-399-10-71-80</mixed-citation><mixed-citation xml:lang="en">Абдурасулов А.Х., Каландаров М.А., Ребезов М.Б., Косилов В.И. Живая масса и особенности телосложения овец породы ала-тоо. Аграрная наука. 2025; (10): 71–80. https://doi.org/10.32634/0869-8155-2025-399-10-71-80</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Baranova N.S., Furaeva N.S., Zvereva E.A., Korolev A.A., Vorobyeva S.S. Determination of optimal blood parameters for the Brown Swiss breed when improving Kostroma breed cattle. Dairy and Beef Cattle Farming. 2024; (4): 13‒18 (in Russian). https://doi.org/10.33943/MMS.2024.51.19.003</mixed-citation><mixed-citation xml:lang="en">Баранова Н.С., Фураева Н.С., Зверева Е.А., Королев А.А., Воробьева С.С. Определение оптимальных параметров кровности по бурой швицкой породе при совершенствовании скота костромской породы. Молочное и мясное скотоводство. 2024; (4): 13‒18. https://doi.org/10.33943/MMS.2024.51.19.003</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Andrienko D.A., Traisov B.B., Rebezov M.B., Galieva Z.A. Morphological composition of carcasses of young Stavropol sheep in the Southern Urals. Science and Education. 2020; 3–1(60): 20–25 (in Russian). https://elibrary.ru/gpvhdc</mixed-citation><mixed-citation xml:lang="en">Андриенко Д.А., Траисов Б.Б., Ребезов М.Б., Галиева З.А. Морфологический состав туш молодняка овец ставропольской породы на Южном Урале. Наука и образование. 2020; 3–1(60): 20–25. https://elibrary.ru/gpvhdc</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Dnekeshev A.K., Musa R.K. Ratio of hot carcass and by-products to live weight at different ages of castration of rams. Modern problems and technologies in animal husbandry. Collection of works based on the results of the All-Russian (national) scientific and practical conference dedicated to the 95th anniversary of the birth of the Honored Scientist of the Russian Federation, Honorary Worker of the Higher Professional Education of the Russian Federation, Head of the Department of Breeding Farm Animals (from 1981 to 1991), Doctor of Agricultural Sciences, Professor of the Nizhny Novgorod State Agricultural Academy L.P. Prakhov. Nizhny Novgorod: Nizhny Novgorod State Agrotechnological University named after L.Ya. Florentyev. 2024; 112–118 (in Russian). https://elibrary.ru/xheltc</mixed-citation><mixed-citation xml:lang="en">Днекешев А.К., Муса Р.K. Соотношение парной туши и субпродуктов к живой массе при разных возрастах кастрации баранчиков. Современные проблемы и технологии в животноводстве. Сборник трудов по итогам Всероссийской (национальной) научно-практической конференции, посвященной 95-летию со дня рождения заслуженного деятеля науки РФ, почетного работника ВПО РФ, заведующего кафедрой разведения сельскохозяйственных животных (с 1981 по 1991 г.) д-ра с.-х. наук, профессора Нижегородской государственной сельскохозяйственной академии Л.П. Прахова. Нижний Новгород: Нижегородский государственный агротехнологический университет им. Л.Я. Флорентьева. 2024; 112–118. https://elibrary.ru/xheltc</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Belookova O.V., Rebezov M.B., Lennikova M.G., Zyablitseva M.A. Influence of zoohygienic parameters on meat productivity of pigs. Bulletin of Osh State University. Agriculture: agronomy, veterinary science and animal husbandry. 2024; 4(9): 52–64 (in Russian). https://doi.org/10.52754/16948696_2024_4(9)_8</mixed-citation><mixed-citation xml:lang="en">Белоокова О.В., Ребезов М.Б., Ленникова М.Г., Зяблицева М.А. Влияние зоогигиенических параметров на мясную продуктивность свиней. Вестник Ошского государственного университета. Сельское хозяйство: агрономия, ветеринария и зоотехния. 2024; 4(9): 52–64. https://doi.org/10.52754/16948696_2024_4(9)_8</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Gritsenko S.A., Belookov A.A., Ermolov S.M., Rebezov M.B., Gritsenko M.D. Exterior indicators of maternal breed pigs at different stages of ontogenesis. Agrarian science. 2025; (9): 45–53 (in Russian). https://doi.org/10.32634/0869-8155-2025-398-09-45-53</mixed-citation><mixed-citation xml:lang="en">Гриценко С.А., Белооков А.А., Ермолов С.М., Ребезов М.Б., Гриценко М.Д. Показатели экстерьера свинок материнской породы на различных этапах онтогенеза. Аграрная наука. 2025; (9): 45–53. https://doi.org/10.32634/0869-8155-2025-398-09-45-53</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Sahib M.R., AL-Jaryan I.L., Al-Thuwaini T.M. GDF9 gene c. 260G &gt; A mutation and sheep litter size: a meta-analysis. Journal of the Hellenic Veterinary Medical Society. 2024; 75(2): 7493–7500. https://doi.org/10.12681/jhvms.35128</mixed-citation><mixed-citation xml:lang="en">Sahib M.R., AL-Jaryan I.L., Al-Thuwaini T.M. GDF9 gene c. 260G &gt; A mutation and sheep litter size: a meta-analysis. Journal of the Hellenic Veterinary Medical Society. 2024; 75(2): 7493–7500. https://doi.org/10.12681/jhvms.35128</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Guseinova Z.M. New candidate genes associated with meat productivity traits in sheep. Current problems and prospects for the development of the agro-industrial complex of the Republic of Dagestan. Proceedings of the regional scientific and practical conference. Makhachkala: Individual entrepreneur S.A. Magomedaliev. 2024; 70–74 (in Russian). https://elibrary.ru/tlvhgm</mixed-citation><mixed-citation xml:lang="en">Гусейнова З.М. Новые гены — кандидаты, связанные с признаками мясной продуктивности овец. Актуальные проблемы и перспективы развития АПК Республики Дагестан. Материалы региональной научно-практической конференции. Махачкала: С.А. Магомедалиев. 2024; 70–74. https://elibrary.ru/tlvhgm</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Krivoruchko A.Yu., Skokova A.V., Yatsyk O.A., Kanibolotskaya A.A. Modern approaches to the genetic identification of farm animal breeds (review). Agricultural Science Euro-North-East. 2021; 22(3): 317‒328 (in Russian). https://doi.org/10.30766/2072-9081.2021.22.3.317-328</mixed-citation><mixed-citation xml:lang="en">Криворучко А.Ю., Скокова А.В., Яцык О.А., Каниболоцкая А.А. Современные подходы генетической идентификации породной принадлежности сельскохозяйственных животных (обзор). Аграрная наука Евро-Северо-Востока. 2021; 22(3): 317‒328. https://doi.org/10.30766/2072-9081.2021.22.3.317-328</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Alieva P.O. A new approach to the selection of candidate genes in sheep breeding. Actual problems and prospects for the development of the agro-industrial complex of the Republic of Dagestan: Proceedings of the regional scientific and practical conference. Makhachkala: Individual entrepreneur S.A. Magomedaliev. 2024; 34–39 (in Russian). https://elibrary.ru/pnaswe</mixed-citation><mixed-citation xml:lang="en">Алиева П.О. Новый подход к подбору генов-кандидатов в овцеводстве. Актуальные проблемы и перспективы развития АПК Республики Дагестан. Материалы региональной научнопрактической конференции. Махачкала: С.А. Магомедалиев. 2024; 34–39. https://elibrary.ru/pnaswe</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Nikonova E.A. et al. Efficiency of growing purebred and crossbred rams. Journal of Osh State University. Agriculture: agronomy, veterinary and zootechnics. 2023; (4): 164–170 (in Russian). https://doi.org/10.52754/16948696_2023_4_24</mixed-citation><mixed-citation xml:lang="en">Никонова Е.А. и др. Эффективность выращивания чистопородных и помесных баранчиков. Вестник Ошского государственного университета. Сельское хозяйство: агрономия, ветеринария и зоотехния. 2023; (4): 164–170. https://doi.org/10.52754/16948696_2023_4_24</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Gerasimova T.G., Rebezov M.B., Lukin E.V. Wool productivity of sheep of different genotypes. Actual problems of intensive development of animal husbandry. Collection of papers based on the materials of the national scientific and practical conference with international participation, dedicated to the memory of the Honored Worker of Higher Education of the Russian Federation, Honorary Worker of Higher professional education of the Russian Federation, honorary citizen of the Bryansk region, Doctor of Biology, Professor E.P. Vashchekin. Bryansk: Bryansk State Agrarian University. 2022; 300–303 (in Russian). https://elibrary.ru/fkpdfx</mixed-citation><mixed-citation xml:lang="en">Герасимова Т.Г., Ребезов М.Б., Лукин Е.В. Шерстная продуктивность овец разного генотипа. Актуальные проблемы интенсивного развития животноводства. Сборник трудов по материалам национальной научно-практической конференции с международным участием, посвященной памяти заслуженного работника Высшей школы РФ, почетного работника высшего профессионального образования РФ, почетного гражданина Брянской области д-ра биол. наук, профессора Е.П. Ващекина. Брянск: Брянский государственный аграрный университет. 2022; 300–303. https://elibrary.ru/fkpdfx</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Kosilov V.I. et al. The effect of the genotype of young sheep on the nitrogen balance. Agrarian science. 2025; (4): 81–87 (in Russian). https://doi.org/10.32634/0869-8155-2025-393-04-81-87</mixed-citation><mixed-citation xml:lang="en">Косилов В.И. и др. Влияние генотипа молодняка овец на баланс азота. Аграрная наука. 2025; (4): 81–87. https://doi.org/10.32634/0869-8155-2025-393-04-81-87</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Milchevsky V.D., Dvalishvili V.G., Zhiryakov A.M. On inbreeding and rotations in pair selection in sheep flocks. Sheep, goats, wool business. 2017; (2): 4–7 (in Russian). https://elibrary.ru/yrrkuv</mixed-citation><mixed-citation xml:lang="en">Мильчевский В.Д., Двалишвили В.Г., Жиряков А.М. Об инбридинге и ротациях при подборе пар в стадах овец. Овцы, козы, шерстяное дело. 2017; (2): 4–7. https://elibrary.ru/yrrkuv</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Lakota E.A., Vorontsova O.A. Exterior-productive indicators of Stavropol breed sheep aged 13–14 months with inbreeding selection. Agrarian science. 2023; (8): 65–71 (in Russian). https://doi.org/10.32634/0869-8155-2023-373-8-65-71</mixed-citation><mixed-citation xml:lang="en">Лакота Е.А., Воронцова О.А. Экстерьерно-продуктивные показатели овец ставропольской породы в возрасте 13–14 месяцев при внутрипородном отборе. Аграрная наука. 2023; (8): 65–71. https://doi.org/10.32634/0869-8155-2023-373-8-65-71</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Dzhatdoev Kh.M., Erkenov T.A. Polymorphism of non-coding sequences in Karachai sheep. Agrarian science. 2024; (12): 109–112 (in Russian). https://doi.org/10.32634/0869-8155-2024-389-12-109-112</mixed-citation><mixed-citation xml:lang="en">Джатдоев Х.М., Эркенов Т.А. Полиморфизм некодирующих последовательностей у овец карачаевской породы. Аграрная наука. 2024; (12): 109–112. https://doi.org/10.32634/0869-8155-2024-389-12-109-112</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Daveteeva M.A. Modern methods of genotyping in animal husbandry. A modern view on the development of the fishing industry complex. Proceedings of the All-Russian scientific and practical conference (within the framework of the ”Priority 2030” program). Makhachkala: Dagestan State Agrarian University named after M.M. Dzhambulatov. 2024; 286–297 (in Russian). https://elibrary.ru/iwyrso</mixed-citation><mixed-citation xml:lang="en">Даветеева М.А. Современные методы генотипирования в животноводстве. Современный взгляд на развитие рыбопромышленного комплекса. Материалы Всероссийской научно-практической конференции (в рамках программы «Приоритет-2030»). Махачкала: Дагестанский государственный аграрный университет им. М.М. Джамбулатова. 2024; 286–297. https://elibrary.ru/iwyrso</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Zabelina M.V., Amiyan A.A. Evaluation of the slaughter indicators of the Edilbaevsky sheep breed depending on the milk productivity of sheep. Agrarian science. 2024; (8): 112–117 (in Russian). https://doi.org/10.32634/0869-8155-2024-385-8-112-117</mixed-citation><mixed-citation xml:lang="en">Забелина М.В., Амиян А.А. Оценка показателей убоя баранчиков эдильбаевской породы в зависимости от молочной продуктивности овцематок. Аграрная наука. 2024; (8): 112–117. https://doi.org/10.32634/0869-8155-2024-385-8-112-117</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Moroz V.A., Chernobai E.N., Novgorodova N.A., Serdyukov I.G. Live weight and exterior characteristics of sheep from homogeneous and heterogeneous selection. Bulletin of the Kurgan State Agricultural Academy. 2017; 2(22): 51–53 (in Russian).</mixed-citation><mixed-citation xml:lang="en">Мороз В.А., Чернобай Е.Н., Новгородова Н.А., Сердюков И.Г. Живая масса и экстерьерные особенности овец от однородного и разнородного подбора. Вестник Курганской ГСХА. 2017; 2(22): 51–53.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Lakota E.A. The influence of parental age on the productive qualities of offspring sheep. Agrarian science. 2025; (7): 57–61 (in Russian). https://doi.org/10.32634/0869-8155-2025-396-07-57-61</mixed-citation><mixed-citation xml:lang="en">Лакота Е.А. Влияние возраста родителей на продуктивные качества потомства у овец. Аграрная наука. 2025; (7): 57–61. https://doi.org/10.32634/0869-8155-2025-396-07-57-61</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Zinovieva N.A. et al. Genome-wide SNP analysis clearly distinguished the Belarusian Red cattle from other European cattle breeds. Animal Genetics. 2021; 52(5): 720–724. https://doi.org/10.1111/age.13102</mixed-citation><mixed-citation xml:lang="en">Zinovieva N.A. et al. Genome-wide SNP analysis clearly distinguished the Belarusian Red cattle from other European cattle breeds. Animal Genetics. 2021; 52(5): 720–724. https://doi.org/10.1111/age.13102</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Petherbridge G. et al. Verkhnee Gakvari: The contribution of adat, religious beliefs and public education to collective environmental management in an agro‐pastoral community in the Dagestan high Caucasus. South of Russia: ecology, development. 2021; 16(3): 142‒179. https://doi.org/10.18470/1992-1098-2021-3-142-179</mixed-citation><mixed-citation xml:lang="en">Петербридж Г. и др. Верхнее Гаквари: вклад адата, религиозных убеждений и народного образования в коллективное управление окружающей средой в агропастырском сообществе Дагестанской части Большого Кавказа. Юг России: экология, развитие. 2021; 16(3): 142‒179 (на англ. яз.). https://doi.org/10.18470/1992-1098-2021-3-142-179</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Prozherin V.P., Yaluga V.L. Kholmogorskaya breed. Dairy and Beef Cattle Farming. 2020; (7): 10 (in Russian). https://elibrary.ru/brmwde</mixed-citation><mixed-citation xml:lang="en">Прожерин В.П., Ялуга В.Л. Холмогорская порода. Молочное и мясное скотоводство. 2020; (7): 10. https://elibrary.ru/brmwde</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Pelmuş R.Ş., Grosu H., Rotar M.C., Gras M.A., Lazăr C., Popa F. The Genetic Influence on Sheep Meat Quality, Growth and Body Weight: A Review. Asian Journal of Dairy and Food Research. 2020; 39(3): 225‒231. https://doi.org/10.18805/ajdfr.DR-176</mixed-citation><mixed-citation xml:lang="en">Pelmuş R.Ş., Grosu H., Rotar M.C., Gras M.A., Lazăr C., Popa F. The Genetic Influence on Sheep Meat Quality, Growth and Body Weight: A Review. Asian Journal of Dairy and Food Research. 2020; 39(3): 225‒231. https://doi.org/10.18805/ajdfr.DR-176</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">El-Mansy S.A. et al. The growth hormone gene polymorphism and its relationship to performance and carcass features in Egyptian Awassi lambs. Heliyon. 2023; 9(3): e14194. https://doi.org/10.1016/j.heliyon.2023.e14194</mixed-citation><mixed-citation xml:lang="en">El-Mansy S.A. et al. The growth hormone gene polymorphism and its relationship to performance and carcass features in Egyptian Awassi lambs. Heliyon. 2023; 9(3): e14194. https://doi.org/10.1016/j.heliyon.2023.e14194</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Tanış A.N., Keskin İ. Association between growth hormone gene polymorphism and some growth traits in Akkaraman and Anatolian Merino sheep. Molecular Biology Reports. 2024; 52: 54. https://doi.org/10.1007/s11033-024-10126-2</mixed-citation><mixed-citation xml:lang="en">Tanış A.N., Keskin İ. Association between growth hormone gene polymorphism and some growth traits in Akkaraman and Anatolian Merino sheep. Molecular Biology Reports. 2024; 52: 54. https://doi.org/10.1007/s11033-024-10126-2</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Dagdelen U., Esenbuga N. Association of GH/HaeIII polymorphism with growth and developmental traits of Morkaraman sheep. Archives Animal Breeding. 2025; 68(3): 575–587. https://doi.org/10.5194/aab-68-575-2025</mixed-citation><mixed-citation xml:lang="en">Dagdelen U., Esenbuga N. Association of GH/HaeIII polymorphism with growth and developmental traits of Morkaraman sheep. Archives Animal Breeding. 2025; 68(3): 575–587. https://doi.org/10.5194/aab-68-575-2025</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Greguła-Kania M., Gruszecki T.M., Junkuszew A., Juszczuk-Kubiak E., Florek M. Association of CAST gene polymorphism with carcass value and meat quality in two synthetic lines of sheep. Meat Science. 2019; 154: 69–74. https://doi.org/10.1016/j.meatsci.2019.04.007</mixed-citation><mixed-citation xml:lang="en">Greguła-Kania M., Gruszecki T.M., Junkuszew A., Juszczuk-Kubiak E., Florek M. Association of CAST gene polymorphism with carcass value and meat quality in two synthetic lines of sheep. Meat Science. 2019; 154: 69–74. https://doi.org/10.1016/j.meatsci.2019.04.007</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Jawasreh K.I., Al-Amareen A.H., Aad P.Y. Relationships between Hha1 Calpastatin Gene Polymorphism, Growth Performance, and Meat Characteristics of Awassi Sheep. Animals. 2019; 9(9): 667. https://doi.org/10.3390/ani9090667</mixed-citation><mixed-citation xml:lang="en">Jawasreh K.I., Al-Amareen A.H., Aad P.Y. Relationships between Hha1 Calpastatin Gene Polymorphism, Growth Performance, and Meat Characteristics of Awassi Sheep. Animals. 2019; 9(9): 667. https://doi.org/10.3390/ani9090667</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Daldaban F., Karakus F., Arslan K., Cinar M.U., Akyuz B. The Role of DGAT1-AluI and CAST-MspI Polymorphisms in Early Growth Traits of Morkaraman Lambs. Veterinary Medicine and Science. 2025; 11(3): e70395. https://doi.org/10.1002/vms3.70395</mixed-citation><mixed-citation xml:lang="en">Daldaban F., Karakus F., Arslan K., Cinar M.U., Akyuz B. The Role of DGAT1-AluI and CAST-MspI Polymorphisms in Early Growth Traits of Morkaraman Lambs. Veterinary Medicine and Science. 2025; 11(3): e70395. https://doi.org/10.1002/vms3.70395</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang Y. et al. Association of BMP15 and GDF9 Gene Polymorphisms with Litter Size in Hu Sheep. Genes. 2025; 16(2): 168. https://doi.org/10.3390/genes16020168</mixed-citation><mixed-citation xml:lang="en">Zhang Y. et al. Association of BMP15 and GDF9 Gene Polymorphisms with Litter Size in Hu Sheep. Genes. 2025; 16(2): 168. https://doi.org/10.3390/genes16020168</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Budiyanto A., Hartanto S., Widayanti R., Setyawan E.M.N., Wardono H.P., Gustari S. The relationship between G1 (c. 260 G &gt; A) and G4 (c. 721 G &gt; A) polymorphisms in the GDF9 gene and the litter size of sheep: A meta-analysis study. Journal of Advanced Veterinary and Animal Research. 2023; 10(4): 599–607. http://doi.org/10.5455/javar.2023.j715</mixed-citation><mixed-citation xml:lang="en">Budiyanto A., Hartanto S., Widayanti R., Setyawan E.M.N., Wardono H.P., Gustari S. The relationship between G1 (c. 260 G &gt; A) and G4 (c. 721 G &gt; A) polymorphisms in the GDF9 gene and the litter size of sheep: A meta-analysis study. Journal of Advanced Veterinary and Animal Research. 2023; 10(4): 599–607. http://doi.org/10.5455/ javar.2023.j715</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Ozdemirov A.A., Chizhova L.N., Khozhokov A.A., Surzhikova E.S., Dogeev G.D., Abdulmagomedov S.Sh. Polymorphism of genes CAST, GH, GDF9 of sheep of the Dagestan mountain breed. South of Russia: ecology, development. 202116(2): 39‒44 (in Russian). https://doi.org/10.18470/1992-1098-2021-2-39-44</mixed-citation><mixed-citation xml:lang="en">Оздемиров А.А., Чижова Л.Н., Хожоков А.А., Суржикова Е.С., Догеев Г.Д., Абдулмагомедов С.Ш. Полиморфизм генов CAST, GH, GDF9 овец дагестанской горной породы. Юг России: экология, развитие. 2021; 16(2): 39‒44. https://doi.org/10.18470/1992-1098-2021-2-39-44</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Volkova V.V. et al. Investigation of the Genetic Diversity of Dagestan Mountain Cattle Using STR-Markers. Diversity. 2022; 14(7): 569. https://doi.org/10.3390/d14070569</mixed-citation><mixed-citation xml:lang="en">Volkova V.V. et al. Investigation of the Genetic Diversity of Dagestan Mountain Cattle Using STR-Markers. Diversity. 2022; 14(7): 569. https://doi.org/10.3390/d14070569</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
