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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">10.32634/0869-8155-2024-384-7-69-73</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3158</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>Конструирование прогнозного индекса для получения новых высокоценных генотипов коров</article-title><trans-title-group xml:lang="en"><trans-title>Construction of a predictive index to create new high-value genotypes of cows</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4225-5533</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Анатольевна Романова - младший научный сотрудник </p><p>Московское шоссе, 55А, Пушкин, Санкт-Петербург, 196601</p></bio><bio xml:lang="en"><p>Elena Anatolyevna Romanova - Junior Research Assistant </p><p>55А Moscow highway, Pushkin, St. Petersburg, 196601</p></bio><email xlink:type="simple">splicing86@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/0009-0005-5704-4420</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тулинова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tulinova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Васильевна Тулинова - кандидат сельскохозяйственных наук </p><p>Московское шоссе, 55А, Пушкин, Санкт-Петербург, 196601</p></bio><bio xml:lang="en"><p>Olga Vasilyevna Tulinova - Candidate of Agricultural Sciences </p><p>55А Moscow highway, Pushkin, St. Petersburg, 196601</p></bio><email xlink:type="simple">tulinova59@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт генетики и разведения сельскохозяйственных животных — филиал Федерального исследовательского центра животноводства — ВИЖ им. академика Л.К. Эрнста</institution><country>Россия</country></aff><aff xml:lang="en"><institution>All-Russian Research Institute of Genetics and Breeding of Farm Animals — branch of L.K. Ernst Federal Research Center for Animal Husbandry</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>23</day><month>07</month><year>2024</year></pub-date><volume>0</volume><issue>7</issue><fpage>69</fpage><lpage>73</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Романова Е.А., Тулинова О.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Романова Е.А., Тулинова О.В.</copyright-holder><copyright-holder xml:lang="en">Romanova E.A., Tulinova O.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://www.vetpress.ru/jour/article/view/3158">https://www.vetpress.ru/jour/article/view/3158</self-uri><abstract><p>Цель данного исследования — разработка прогнозного индекса APIndex для животных отечественной айрширской популяции молочного скота с использованием генетико-математической модели. В обработку вошли фенотипические данные 65753 коров из 34 племенных хозяйств 8 регионов РФ. Согласно базовой модели индекса I AYR, разработанного в предыдущих исследованиях, проведена оценка пробанда AIAYR и родителей: SIAYR — для быков-отцов, DIAYR — для матерей коров с использованием собственных оценок племенной ценности EBV методом BLUP AM. С помощью однофакторного дисперсионного анализа ANOVA установлены значимые влияния факторов индексной оценки отцов и матерей на зависимую переменную величины индекса пробанда, которые составили 20,9% и 17,7%. В результате вычисления силы влияния и коэффициентов регрессии разработан прогнозный индекс для пробанда, позволяющий оценить потомство еще до получения его фенотипических данных. Подтверждением качества разработанной модели прогнозного индекса послужили высокие достоверные коэффициенты корреляции с AIAYR (r = 0,807, p ≤ 0,001), SIAYR (r = 0,889, p ≤ 0,001) и DIAYR (r = 0,515, p ≤ 0,001). Таким образом, сконструированный индекс APIndex может быть использован в качестве инструмента прогнозирования индексной оценки животных для получения новых высокоценных генотипов и элиминации нежелательных особей с помощью выявленных отрицательных оценок.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of this study is to develop a predictive index APIndex for animals of the domestic AYRshire dairy cattle population using a genetic and mathematical model. The processing included phenotypic data of 65,753 cows from 34 breeding farms in 8 regions of the Russian Federation. According to the basic model of the I AYR index, developed in our previous studies, the proband AI AYR and parents were assessed: SIAYR — for fathers of bulls, DIAYR — for mothers of cows using our own estimates of the breeding value EBV using the BLUP AM method. Using one-way analysis of variance ANOVA, significant influences of the index assessment factors of fathers and mothers on the dependent variable of the proband index value were established, which amounted to 20.9% and 17.7%. As a result of calculating the strength of influence and regression coefficients, a predictive index for the proband was developed, which allows one to evaluate the offspring even before obtaining their phenotypic data. The quality of the developed predictive index model was confirmed by high reliable correlation coefficients with AIAYR (r = 0.807, p ≤ 0.001), SIAYR (r = 0.889, p ≤ 0.001) and DIAYR (r = 0.515, p ≤ 0.001). Thus, the constructed index APIndex can be used as a tool for predicting the index assessment of animals and obtaining new highly valuable genotypes and eliminate unwanted individuals using identified negative scores.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>индексная оценка</kwd><kwd>сила влияния</kwd><kwd>айрширская порода</kwd><kwd>коэффициент корреляции</kwd><kwd>коэффициент регрессии</kwd><kwd>ANOVA</kwd><kwd>BLUP</kwd></kwd-group><kwd-group xml:lang="en"><kwd>index score</kwd><kwd>strength of influence</kwd><kwd>Ayrshire breed</kwd><kwd>correlation coefficient</kwd><kwd>regression coefficient</kwd><kwd>ANOVA</kwd><kwd>BLUP</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования проведены в рамках выполнения научных исследований Министерства науки и высшего образования РФ по теме № 124020200029-4. В исследованиях использованы материалы Селекционного центра по айрширской породе (Всероссийский научноисследовательский институт генетики и разведения сельскохозяйственных животных — филиал Федерального государственного бюджетного научного учреждения «Федеральный исследовательский центр животноводства — ВИЖ им. академика Л.К. Эрнста»).</funding-statement><funding-statement xml:lang="en">The research was carried out as part of the scientific research of the Ministry of Science and Higher Education of the Russian Federation on topic No. 124020200029-4. The research used materials from the Ayrshire Breeding Center (Russian Research Institute of Farm Animal Genetics and Breeding — Branch of the L.K. Ernst Federal Research Center for Animal Husbandry).</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">Legarra A., González-Diéguez D., Vitezica Z.G. 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