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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/issn2072-2419.2024.1.342</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1341</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>АКУШЕРСТВО, ГИНЕКОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OBSTETRICS, GYNECOLOGY</subject></subj-group></article-categories><title-group><article-title>Ассоциация полиморфизма гена FGF2 с экономически значимыми признаками коров голштинской породы республики Татарстан</article-title><trans-title-group xml:lang="en"><trans-title>Association of FGF2  gene polymorphism with economically significant traits of Holstein cows of the Republic of Tatarstan</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9299-2104</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Муханина</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukhanina</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. биол. наук, ст. науч. сотр. </p></bio><bio xml:lang="en"><p> Candidate of Biological Sciences, Senior Researcher </p><p> Kazan </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/0000-0003-1184-3188</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафина</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Safina</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. биол. наук, ст. науч. сотр. </p></bio><bio xml:lang="en"><p> Candidate of Biological Sciences, Senior Researcher </p><p> Kazan </p></bio><email xlink:type="simple">natysafina@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/0000-0002-3362-0463</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шакиров</surname><given-names>Ш. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakirov</surname><given-names>Sh. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д-р. с.-х. наук, проф., гл. науч. сотр. </p></bio><bio xml:lang="en"><p> Doctor of Agricultural Sciences, Professor, Chief Researcher </p><p> Kazan </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/0000-0002-2970-1500</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гайнутдинова</surname><given-names>Э. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Gainutdinova</surname><given-names>E. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p> асп., науч. сотр. </p></bio><bio xml:lang="en"><p> Graduate student, Researcher </p><p> Kazan </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/0000-0002-6083-2883</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фаттахова</surname><given-names>З. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Fattakhova</surname><given-names>Z. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p> канд. биол. наук, асс. каф. кормления </p></bio><bio xml:lang="en"><p> Candidate of Biological Sciences, Assistant of the Department of Feeding  </p><p> Kazan </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Татарский научно-исследовательский институт сельского хозяйства ФГБУН ФИЦ КазНЦ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tatar Research Institute of Agriculture–Subdivision of the “Federal State Budgetary Institution of Science Federal Research Center «Kazan Scientific Center of Russian Academy of Sciences»”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО Казанская государственная академия ветеринарной медицины им. Н.Э. Баумана</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal state budgetary educational institution of higher education “Kazan state academy of veterinary medicine named after N. E.Bauman”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>02</day><month>04</month><year>2024</year></pub-date><volume>0</volume><issue>1</issue><fpage>342</fpage><lpage>349</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Муханина Е.Н., Сафина Н.Ю., Шакиров Ш.К., Гайнутдинова Э.Р., Фаттахова З.Ф., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Муханина Е.Н., Сафина Н.Ю., Шакиров Ш.К., Гайнутдинова Э.Р., Фаттахова З.Ф.</copyright-holder><copyright-holder xml:lang="en">Mukhanina E.N., Safina N.Y., Shakirov S.K., Gainutdinova E.R., Fattakhova Z.F.</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/1341">https://vetjournal.spbguvm.ru/jour/article/view/1341</self-uri><abstract><p>Улучшение репродуктивных показателей дойных коров возможно за счет применения маркерассоциированной селекции. Ген FGF2 является геном -кандидатом фертильности крупного рогатого скота, влияет на эмбриональное развитие плода и эмбриональную смертность. Исследование взаимодействия гена основного фактор роста фибробластов 2 (FGF2 – SNP11646 [A → G]) и экономически значимых показателей проводилось на 270 полновозрастных коровах голштинской породы отечественной селекции в СХПК «племенной завод им. Ленина» Атнинского района Республики Татарстан. В наблюдаемой популяции наиболее распространен аллель G (0,591) и генотип AG (42,6%), генетическое равновесие, согласно закону Харди-Вайнберга сохранено. Критерий хи-квадрат Пирсона – вариабельности ожидаемого с наблюдаемым распределением аллелей гена FGF2 в исследуемой группе ниже критического (χ2=3,84). Максимальную живую массу при первом плодотворном осеменении имели полновозрастные коровы, несущие гомозиготный аллель A по локусу гена FGF2 – 435,5 кг, что выше, чем у поголовья с генотипом GG, – на 17,7 кг (4,2 %; р &lt; 0,01). По индексу плодовитости Дохи установлен средний уровень в изучаемой популяции. Выявлено в ходе исследования, что уровень яловости, с высокой степенью достоверности, выше у особей с генотипом AG – 6,2 %, для этой же группы отмечен наиболее ранний возраст первого плодотворного осеменения. Высокий уровень яловости ведет к потерям молока у коров, гетерозиготных по локусу гена FGF2, превышая потери молока, наблюдаемые по генотипу АА, на 32,7 % (р &lt; 0,001). Прослеживается обратная корреляция между высокой молочной продуктивностью и показателями воспроизводства крупного рогатого скота, оказывающая влияние на экономическую эффективность молочного скотоводства.</p></abstract><trans-abstract xml:lang="en"><p>Improving the reproductive functions of dairy cows may be possible through the use of marker-associated breeding. The FGF2 gene is a candidate gene for bovine fertility, in early pregnancy and affects fetal embryonic development and embryonic mortality. The study of the interaction of the gene of the basic fibroblast growth factor 2 (FGF2 – SNP11646 [A → G]) and economic indicators was carried out on 270 full-aged cows of Holstein population of indigenous selection of Breeding Farm Integrated Agricultural Production Center of the Republic of Tatarstan. In the observed population, the G allele (0.591) and the AG genotype (42.6%) are the most common, and the genetic balance, according to the Hardy-Weinberg law, is preserved. Pearson's consensus criterion is 2χ=3.84, respectively, the expected distribution of FGF2 gene alleles in the study group coincides with the observed one. The maximum live weight at the first fruitful insemination was in full–aged cows carrying the homozygous allele A at the FGF2 gene locus – 435.5 kg, which is higher than in livestock with the GG genotype – by 17.7 kg (4.2 %; p &lt; 0.01). The Doha fertility index for the studied population is average. It was revealed during the study that the level of fertility, with a high degree of reliability, is higher in individuals with the AG genotype – 6.2%, for the same group the earliest age of the first fruitful insemination was noted. A high level of maleness leads to milk losses in cows heterozygous for the FGF2 gene locus, exceeding milk losses observed for the AA genotype by 32.7 % (p &lt; 0.001). There is an inverse correlation between high milk productivity and reproduction traits of cattle, which affects the economic efficiency of dairy production.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ген</kwd><kwd>аллель</kwd><kwd>полиморфизм</kwd><kwd>фактор роста фибробластов 2</kwd><kwd>FGF2</kwd><kwd>экономически значимые признаки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gene</kwd><kwd>allele</kwd><kwd>polymorphism</kwd><kwd>fibroblast growth factor 2</kwd><kwd>FGF2</kwd><kwd>economical traits</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья написана в рамках государственного задания: Эколого-генетические подходы к созданию и сохранению ресурсов растений и животных, расширению их адаптивного потенциала и биоразнообразия, разработка сберегающих агротехнологий с целью повышения устойчивости производства высококачественной продукции, достижения безопасности для здоровья человека и окружающей среды. Номер регистрации: 122011800138-7.</funding-statement><funding-statement xml:lang="en">The article was written within the framework of the state task: Ecological and genetic approaches to the creation and conservation of plant and animal resources, the expansion of their adaptive potential and biodiversity, the development of conservation agrotechnologies in order to increase the sustainability of high-quality products, achieve safety for human health and the environment. Registration number: 122011800138-7.</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">Меркурьева, Е. К. Генетика с основами биометрии / Е. К. Меркурьева, Г. Н. Шангин-Березовский // М.: Колос, 1983. – 400 с.</mixed-citation><mixed-citation xml:lang="en">Merkureva, E. K, Genetics with the fundamentals of biometrics / E. K Merkureva, G. N Shangin-Berezovsky. – Moskow: Kolos. 1983:400. 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