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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">vestiag</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия аграрных наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Agrarian Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1817-7204</issn><issn pub-type="epub">1817-7239</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestiag-227</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>ЖЫВЁЛАГАДОЎЛЯ І ВЕТЭРЫНАРНАЯ МЕДЫЦЫНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANIMAL HUSBANDRY AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>ПОЛИМОРФИЗМ ГЕНА RYR1, АСОЦИАЦИЯ И ПОЛИМОРФИЗМ ГЕНА ESR С РЕПРОДУКТИВНЫМИ КАЧЕСТВАМИ ГИБРИДНЫХ СВИНЕЙ</article-title><trans-title-group xml:lang="en"><trans-title>POLYMORPHISM OF RYR1 GENE, ASSOCIATIONS AND POLYMORPHISM OF ESR GENE WITH REPRODUCTIVE TRAITS OF HYBRID PIGS</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>Коско</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosko</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант, научный сотрудник лаборатории гибридизации в свиноводстве</p></bio><bio xml:lang="en"><p>Postgraduate student</p></bio><email xlink:type="simple">kosko5121989@mail.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>Шейко</surname><given-names>И. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Sheyko</surname><given-names>I. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик, доктор сельско-хозяйственных наук, профессор, первый заместитель генерального директора</p></bio><bio xml:lang="en"><p>Academician, D. Sc. (Agricultural)</p></bio><email xlink:type="simple">belniig@tut.by</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>Епишко</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Epishko</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат сельскохозяйственных наук, заведующая лаборатории ДНК-тестирования</p></bio><bio xml:lang="en"><p>Ph. D. (Agricultural)</p></bio><email xlink:type="simple">belniig@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат сельскохозяйственных наук, старший преподаватель кафедры менеджмента, маркетинга и права</p></bio><bio xml:lang="en"><p>Ph. D. (Agricultural)</p></bio><email xlink:type="simple">belniig@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-практический центр Национальной академии наук Беларуси по животноводству</institution></aff><aff xml:lang="en"><institution>The Scientiﬁc and Practical Center of the National Academy of Sciences of Belarus on Animal Husbandry</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Гродненский государственный аграрный университет</institution></aff><aff xml:lang="en"><institution>Grodno State Agrarian University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>17</day><month>02</month><year>2017</year></pub-date><volume>0</volume><issue>1</issue><fpage>70</fpage><lpage>78</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коско И.С., Шейко И.П., Епишко О.А., Чернов А.С., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Коско И.С., Шейко И.П., Епишко О.А., Чернов А.С.</copyright-holder><copyright-holder xml:lang="en">Kosko I.S., Sheyko I.P., Epishko O.A., Chernov A.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://vestiagr.belnauka.by/jour/article/view/227">https://vestiagr.belnauka.by/jour/article/view/227</self-uri><abstract><p>Многоплодие является одним из основных показателей рентабельности свиноводства. Так, содержание матки окупается стоимостью 4–5 откормочных свиней, и только с 6-го поросенка матка начинает приносить доход. Как известно, размер гнезда свиноматки характеризуется низким коэффициентом наследуемости, величина которого колеблется в пределах 0,001–0,360. Отрицательное влияние на многоплодие оказывает интенсивная селекция на мясность. Кроме того, за последние десятилетия показатель многоплодия в странах с развитым свиноводством практически не изменился. В связи с этим актуальными и значимыми являются исследования проблемы повышения показателей репродуктивных признаков свиноматок, проводимые с использованием передовых молекулярно-генетических методов. В статье приведены результаты исследования полиморфизма генов RYR1 и ESR на поголовье свиноматок сочетаний (БКБ  БМ)  Д, (БКБ  БМ)  (Д  П), (БКБ  Й)  (Д  П), (Л  Й)  (Д  П), а также ассоциации полиморфных вариантов гена ESR с репродуктивными признаками животных. Установлено, что все протестированные животные устойчивы к стрессу (имеют генотип ESRNN). Концентрация предпочтительного для селекции аллеля ESRB в изученных группах свиноматок изменялась в пределах 0,25–0,45. Выявлено достоверное превосходство свиноматок генотипа ESRBB над животными альтернативных генотипов по показателям массы гнезда при отъеме и сохранности. Полученные результаты могут использоваться для внедрения в селекционную практику маркерных генов, это позволит оценивать частоту встречаемости желательных и нежелательных аллелей и проводить в дальнейшем целенаправленный отбор, что будет способствовать повышению устойчивости животных к стрессу и увеличению их продуктивности.</p><sec><title> </title><p> </p></sec><sec><title> </title><p> </p></sec></abstract><trans-abstract xml:lang="en"><p>Polymorphism of RYR1 gene was studied – ryanodine receptor gene (eng. Ryanodine Receptor 1), which mutation leads to the development of swine stress syndrome, and ESR gene – estrogen receptor gene (eng. Estrogen Receptor), having effect on reproductive traits, in population of hybrid sows of Belarusian Large White  Belarusian Meat (BLW  BM), Belarusian Large White  Yorkshire (BLW  Y) and Landrace  Yorkshire (L  Y) when crossed with boars of Duroc (D) breed and hybrid boars of Duroc  Pietrain (D  P) of German selection. All the tested groups of pigs are monomorphic by RYR1 gene, which indicates absence of species susceptible to malignant hyperthermia in the studied population. By ESR gene, for animals of (BLW  BM)  D and (L  Y)  (D  P) two genotypes were determined: ESRAA and ESRAB; and correlation of (BLW  BM)  (D  P) and (BLW  Y)  (D  P) showed all the three genotypes. Also the effect of ESR gene polymorphism on the number of reproductive traits of sows was studied. Positive effect of ESRB allele was determined with animals of correlations (BLW  BM)  (D  P) and (BLW  Y)  (D  P) on such traits as multiple pregnancy, milkiness, litter weight and piglets weight at weaning in 35 days. However, in the groups of animals not having species of ESRBB genotype, this trend is not traced clearly. The obtained results can be used for implementation in practical breeding by marker genes that will allow to evaluate the frequency of occurrence of desirable and undesirable alleles and conduct further purposeful selection, which will enhance the resistance of animals to stress and increase their performance.</p><sec><title> </title><p> </p></sec><sec><title> </title><p> </p></sec><sec><title> </title><p> </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>репродуктивные качества</kwd><kwd>стресс</kwd><kwd>гены</kwd><kwd>ДНК-маркеры</kwd><kwd>свиньи</kwd><kwd>RYR1</kwd><kwd>ESR</kwd><kwd>полиморфизм</kwd></kwd-group><kwd-group xml:lang="en"><kwd>reproductive traits</kwd><kwd>pigs</kwd><kwd>stress</kwd><kwd>genes</kwd><kwd>DNA-markers</kwd><kwd>RYR1</kwd><kwd>ESR</kwd><kwd>polymorphism</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">Достижения и перспективы использования ДНК-технологий в свиноводстве / Т. 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