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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">ivm</journal-id><journal-title-group><journal-title xml:lang="ru">Международный вестник ветеринарии</journal-title><trans-title-group xml:lang="en"><trans-title>International Journal of Veterinary Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-2419</issn><publisher><publisher-name>SpbGUVM Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52419/issn2072-2419.2024.3.329</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1477</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>БИОХИМИЯ, АНАТОМИЯ, ФИЗИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCHEMISTRY, ANATOMY, PHYSIOLOGY</subject></subj-group></article-categories><title-group><article-title>Аминокислотные показатели крови трехпородных гибридов свиней в модели линейного уравнения</article-title><trans-title-group xml:lang="en"><trans-title>Amino acid blood parameters of three-breed hybrid pigs in the linear equation model</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4877-0883</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Контэ</surname><given-names>А. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Konte</surname><given-names>A. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Контэ А.Ф. – канд. с.-х. наук, ст. науч. сотр. отд. популяционной генетики и генетических основ разведения животных</p></bio><bio xml:lang="en"><p>Konte A.F. – Candidate of Agricultural Sciences, Senior Researcher Department of Population Genetics and Genetic Foundations of Animal Breeding</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0487-4576</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Недашковский</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nedashkovsky</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Недашковский И.С. – канд. биол. наук, науч. сотр. отд. популяционной генетики и генетических основ разведения животных </p></bio><bio xml:lang="en"><p>Nedashkovsky I.S. – Candidate of Biological Sciences, Researcher Department of Population Genetics and Genetic Foundations of Animal Breeding</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6774-4288</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воронина</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Voronina</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воронина О.А. – канд. биол. наук, ст. науч. сотр. гр. аналитической биохимии </p></bio><bio xml:lang="en"><p>Voronina O.A. – Candidate of Biological Sciences, Senior Researcher analytical biochemistry groups</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4267-5300</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колесник</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolesnik</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Колесник Н.С. – мл. науч. сотр. лаб. фундаментальных основ питания с-х животных и рыб </p></bio><bio xml:lang="en"><p>Kolesnik N.S. – Junior Researcher, laboratories of the fundamental principles of nutrition of farm animals and fish</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0257-1643</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Savina</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савина А.А. – науч. сотр. гр. аналитической биохимии</p></bio><bio xml:lang="en"><p>Savina A.A. – Researcher, analytical biochemistry groups</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1533-8680</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайцев</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaytsev</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зайцев С.Ю. – д-р биол. наук, проф., вед. науч. сотр. гр. аналитической биохимии </p></bio><bio xml:lang="en"><p>Zaytsev S.Yu. – Doctor of Biological Sciences, Leading Researcher, analytical biochemistry groups</p></bio><email xlink:type="simple">s.y.zaitsev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное научное учреждение «Федеральный исследовательский центр животноводства - ВИЖ имени академика Л.К. Эрнста»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>329</fpage><lpage>339</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Контэ А.Ф., Недашковский И.С., Воронина О.А., Колесник Н.С., Савина А.А., Зайцев С.Ю., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Контэ А.Ф., Недашковский И.С., Воронина О.А., Колесник Н.С., Савина А.А., Зайцев С.Ю.</copyright-holder><copyright-holder xml:lang="en">Konte A.F., Nedashkovsky I.S., Voronina O.A., Kolesnik N.S., Savina A.A., Zaytsev S.Y.</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://vetjournal.spbguvm.ru/jour/article/view/1477">https://vetjournal.spbguvm.ru/jour/article/view/1477</self-uri><abstract><p>Аминокислотные показатели дают важные и актуальные данные для объективной оценки физиологобиохимического статуса организма и закономерностей формирования хозяйственно-полезных признаков животных. Цель данной работы - моделирование фенотипических и генетических закономерностей изменчивости основных аминокислотных показателей крови гибридов свиней в рамках модели смешанного уравнения. Получены и исследованы основные 19 аминокислотных показателей сыворотки крови от 58 голов трехпородных гибридов (Крупная Белая×Ландрас×Дюрок): содержание (г/100 мл) аспарагиновой кислоты и ее амида (ASP+ ASN) составляло 0,64; глутаминовой кислоты и ее амида (GLU+GLN) ‒ 1,04; аланина (ALA) – 0,46; глицина (GLY) – 0,28; треонина (THR) – 0,34, серина (SER) – 0,39; цистеина (CYS) –0,21; метионина (MET) –0,07; валина (VAL) – 0,52; изолейцина (ILE) – 0,28; лейцина (LEU) –0,83; тирозина (TYR) – 0,46; фенилаланина (PHE – 0,50); гистидина (HIS) – 0,31; лизина (LYS) – 0,69; аргинина (ARG) – 0,51; пролина (PRO) – 0,41. Для вычисления значений корреляций, коварианс и варианс признаков применяли модели с использованием программ REMLF90. Показано, что все аминокислоты обладают умеренными и сильными как фенотипическими, так и генетическими корреляциями (r&gt;0,5). Все аминокислоты обладают достаточно плотной связью с основными биохимическими показателями. Из вышеизложенного может сделать заключение о том, что уравнение смешанной модели позволяет получить глубокое представление о характере изменчивости основных аминокислотных показателей крови, связанных в общую лабильную биохимическую систему. </p></abstract><trans-abstract xml:lang="en"><p>Amino acid parameters provide important and relevant data for objective assessment of physiological and biochemical status of organism and patterns of formation of economically useful traits of animals. The objective of this work is to model phenotypic and genetic patterns of variability of main amino acid parameters of blood of pig hybrids within the framework of mixed equation model. Main 19 amino acid parameters of blood serum of 58 heads of three-breed hybrids (Large White × Landrace × Duroc) were obtained and studied: content (g/100 ml) of aspartic acid and its amide (ASP+ ASN) was 0.64; glutamic acid and its amide (GLU+GLN) ‒ 1.04; alanine (ALA) – 0.46; glycine (GLY) – 0.28; threonine (THR) – 0.34, serine (SER) – 0.39; cysteine (CYS) – 0.21; methionine (MET) –0.07; valine (VAL) – 0.52; isoleucine (ILE) – 0.28; leucine (LEU) –0.83; tyrosine (TYR) – 0.46; phenylalanine (PHE – 0.50); histidine (HIS) – 0.31; lysine (LYS) – 0.69; arginine (ARG) – 0.51; proline (PRO) – 0.41. To calculate the correlation values, covariance and variance of features, models using the REMLF90 programs were fulfilled. It was shown that all amino acids have moderate and strong both phenotypic and genetic correlations (r&gt; 0.5). All amino acids have a fairly close connection with the main biochemical indices. From the above, we can conclude that the equation of the mixed model allows us to obtain a deep understanding of the nature of the variability of the main amino acid indices of the blood, connected in a complex labile biochemical system.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>трехпородные гибриды свиней</kwd><kwd>аминокислотные показатели крови</kwd><kwd>модель смешанного уравнения</kwd><kwd>дисперсионная модель</kwd><kwd>генетические и фенотипические корреляции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>three-breed pig hybrids</kwd><kwd>amino acid blood parameters</kwd><kwd>mixed equation model</kwd><kwd>dispersion model</kwd><kwd>genetic and phenotypic correlations</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено за счет гранта Российского научного фонда № 20-16-00032-П, https://rscf.ru/project/20-16-00032/</funding-statement><funding-statement xml:lang="en">The research was carried out with the support of the Russian Science Foundation, grant No. 20-16-00032-P, https://rscf.ru/project/20-16-00032/</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">Россия и страны мира. 2022: Статистический сборник, Росстат. 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