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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-2025-2-151-166</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestiiatimacad-944</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>Анализ селекционно-генетических параметров в популяции свиней породы йоркшир и ландрас</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of selection and genetic parameters in Yorkshire and Landrace pigs</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6770-1990</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савинов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Savinov A.V</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Васильевич Савинов, аспирант кафедры разведения, генетики и биотехнологии животных</p><p>127550, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Anton V. Savinov, post graduate student of the Department of Animal Breeding, Genetics and Biotechnology</p><p> 49 Timiryazevskaya St., Moscow, 127550</p></bio><email xlink:type="simple">savinovantonv@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/0009-0003-7337-4361</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Круткина</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Krutkina</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мария Сергеевна Круткина, руководитель аналитического отдела</p><p>115409, г. Москва, Каширское шоссе, 49</p></bio><bio xml:lang="en"><p>Maria S. Krutkina, Head of Analytics Department</p><p>49 Kashirskoe Hwy., Moscow, 115409</p></bio><email xlink:type="simple">info@agroplem.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/0009-0003-7337-4361</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колов</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Михайлович Колов, аналитик</p><p>115409, г. Москва, Каширское шоссе, 49</p></bio><bio xml:lang="en"><p>Aleksandr M. Kolov, Analyst</p><p>49 Kashirskoe Hwy., Moscow, 115409</p></bio><email xlink:type="simple">info@agroplem.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/0000-0001-6169-3953</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алтухова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Altukhova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья Сергеевна Алтухова, канд. с.-х. наук, доцент кафедры разведения, генетики и биотехнологии животных</p><p>127550, г. Москва, ул. Тимирязевская, 49</p></bio><bio xml:lang="en"><p>Natalia S. Altukhova, CSc (Ag), Associate Professor, Associate Professor at the Department of Animal Breeding, Genetics and Biotechnology</p><p> 49 Timiryazevskaya St., Moscow, 127550</p></bio><email xlink:type="simple">n.altukhova@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/0009-0006-5259-6549</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белова Марина Владимировна, начальник селекционно-генетического управления</p><p>450001, г. Уфа, ул. Проспект Октября, 1</p></bio><bio xml:lang="en"><p>Marina V. Belova, Head of the Selection Department</p><p>1 Prospekt Oktyabrya St., Ufa, 450001</p></bio><email xlink:type="simple">belova_mv@tavros.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8893-2846</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рудь</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Rud</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Иванович Рудь, д-р с.-х. наук, руководитель научно-исследовательского отдела селекции животных</p><p>450001, г. Уфа, ул. Проспект Октября, 1</p></bio><bio xml:lang="en"><p>Andrey I. Rud, DSc (Ag), Head of the Research Department of Animal Breeding</p><p>1 Prospekt Oktyabrya St., Ufa, 450001</p></bio><email xlink:type="simple">Rud_AI@tavros.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4093-3254</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рукин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rukin</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Илья Владимирович Рукин, директор по научным исследованиям и разработкам</p><p>115409, г. Москва, Каширское шоссе, 49</p></bio><bio xml:lang="en"><p>Ilya V. Rukin, Director of Research and Development</p><p>49 Kashirskoe Hwy., Moscow, 115409</p></bio><email xlink:type="simple">info@agroplem.ru</email><xref ref-type="aff" rid="aff-2"/></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>АО «Агроплем»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC “Agroplem”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО «Башкирская мясная компания»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC “Bashkir Meat Company”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>05</month><year>2025</year></pub-date><volume>0</volume><issue>2</issue><fpage>151</fpage><lpage>166</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Савинов А.В., Круткина М.С., Колов А.М., Алтухова Н.С., Белова М.В., Рудь А.И., Рукин И.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Савинов А.В., Круткина М.С., Колов А.М., Алтухова Н.С., Белова М.В., Рудь А.И., Рукин И.В.</copyright-holder><copyright-holder xml:lang="en">Savinov A.V A.V., Krutkina M.S., Kolov A.M., Altukhova N.S., Belova M.V., Rud A.I., Rukin I.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/944">https://izvestiia.timacad.ru/jour/article/view/944</self-uri><abstract><p>Расчет селекционно-генетических параметров является важным компонентом генетического совершенствования экономически важных признаков, в частности, в племенной работе в свиноводстве, и определяет стратегию селекции при комплексной оценке племенной ценности животных. В статье представлены результаты разработки линейной модели смешанного типа для оценки компонентов дисперсии и прогноза племенной ценности свиней породы йоркшир и ландрас по признакам: количество рожденных живых поросят, гол.; средняя живая массы поросенка в помете, кг; скорость роста живой массы от рождения до достижения 100 кг, г/сут. Выполнен анализ влияния факторов паратипической природы на разнообразие признаков продуктивности свиней. Выявлена нелинейная зависимость показателей многоплодия и крупноплодности и фиксированного фактора «Номер опороса». В закрытой популяции свиней двух пород рассчитаны коэффициенты фенотипической и генетической корреляции и коэффициенты наследуемости селекционных признаков. Так, по признакам многоплодия, крупноплодности и скорости роста для породы йоркшир коэффициенты наследуемости определились на уровне 0.14, 0.20, 0.40, а для породы ландрас – 0.13, 0.18, 0.43 соответственно. Выявлены отрицательная генетическая корреляция между показателями многоплодия и крупноплодности (–0.24 и –0.33 для породы йоркшир и ландрас соответственно) и положительная связь между крупноплодностью и скоростью роста (+0.23 и +0.28 для породы йоркшир и ландрас соответственно). На основе рассчитанных селекционно-генетических параметров в дальнейшем будет сделан прогноз племенной ценности свиней и осуществлена комплексная оценка животных двух пород.</p></abstract><trans-abstract xml:lang="en"><p>Calculating selection and genetic parameters is an important step in improving economically significant genetic traits, particularly in pig breeding. These calculations determine the breeding strategies for assessing the breeding value of animals. This article presents the results of developing linear mixed models to assess variance components and predict breeding values in Yorkshire and Landrace pigs for the following traits: the number of piglets born alive (NBA), the average birth weight (ABW) per, and the average daily weight gain (ADWG) until reaching 100 kg. The effect of fixed factors on the variability of pig productivity traits was analyzed. A nonlinear relationship was revealed between NBA and ABW and the factor “parity number”. Phenotypic and genetic correlations and heritability estimates of the analyzed pig populations’ breeding traits were calculated. The heritability estimates were 0.14, 0.20, and 0.40 for NBA, ABW, and ADWG, respectively, in Yorkshire pigs and 0.13, 0.18, and 0.43, respectively, in Landrace pigs. Negative genetic correlations were found between NBA and ABW (–0.24 and –0.33 for Yorkshire and Landrace pigs, respectively), as well as positive correlations between ABW and ADWG (+0.23 and +0.28 for Yorkshire and Landrace pigs, respectively). These selection and genetic parameters will be used to predict the breeding value of pigs and assess selection indexes in the two breeds.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Анализ варианс</kwd><kwd>смешанные модели</kwd><kwd>наследуемость признаков</kwd><kwd>генетическая корреляция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Analysis of variance</kwd><kwd>mixed models</kwd><kwd>heritability of traits</kwd><kwd>genetic correlation</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">Trukhachev V.I., Oleinik S.A., Zlydnev N.Z., Morozov V.Yu. 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