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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2022-66-1-122-128</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-1046</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>АГРАРНЫЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGRARIAN SCIENCES</subject></subj-group></article-categories><title-group><article-title>Применение ДНК-тестирования крупного рогатого скота по генам LTF и MBL1 для повышения эффективности производства молока</article-title><trans-title-group xml:lang="en"><trans-title>Using of DNA-testing of cattle for the LTF and MBL1 genes to increase the milk production efficiency</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>Пестис</surname><given-names>В. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Pestis</surname><given-names>V. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пестис Витольд Казимирович – академик, доктор сельскохозяйственных наук, профессор, ректор.</p><p>Ул. Терешковой, 28, 230008, Гродно</p></bio><bio xml:lang="en"><p>Pestis Vitold K. – Academician, D. Sc. (Agrarian), Professor, Rector.</p><p>28, Tereshkova Str., 230008, Grodno</p></bio><email xlink:type="simple">ggau@ggau.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>Пешко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Peshко</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пешко Валентин Валентинович – кандидат сельскохозяйственных наук, доцент, первый проректор.</p><p>Ул. Терешковой, 28, 230008, Гродно</p></bio><bio xml:lang="en"><p>Peshко Valentin V. – Ph. D. (Agrarian), Associate Professor, First Vice-Rector.</p><p>28, Tereshkova Str., 230008, Grodno</p></bio><email xlink:type="simple">valik-11@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>Епишко</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Epishкo</surname><given-names>О. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Епишко Ольга Александровна – кандидат сельскохозяйственных наук, доцент.</p><p>Ул. Терешковой, 28, 230008, Гродно</p></bio><bio xml:lang="en"><p>Epishкo Оlga А. – Ph. D. (Agrarian), Associate Professor.</p><p>28, Tereshkova Str., 230008, Grodno</p></bio><email xlink:type="simple">ggau@ggau.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>Ситько</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sitko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ситько Анастасия Александровна – ветеринарный врач.</p><p>Ул. Терешковой, 28, 230008, Гродно</p></bio><bio xml:lang="en"><p>Sitko Anastasia A. – Veterinarian.</p><p>28, Tereshkova Str., 230008, Grodno</p></bio><email xlink:type="simple">ggau@ggau.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><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>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2022</year></pub-date><volume>66</volume><issue>1</issue><fpage>122</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пестис В.К., Пешко В.В., Епишко О.А., Ситько А.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Пестис В.К., Пешко В.В., Епишко О.А., Ситько А.А.</copyright-holder><copyright-holder xml:lang="en">Pestis V.K., Peshко V.V., Epishкo О.A., Sitko A.A.</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://doklady.belnauka.by/jour/article/view/1046">https://doklady.belnauka.by/jour/article/view/1046</self-uri><abstract><p>У коров белорусской черно-пестрой породы, содержащихся в СПК им. И. П. Сенько, установлен полиморфизм генов лактоферрина и манноза-связывающего лектина. Выявлены генотипы LTFАА, LTFАВ и MBL1TТ, MBL1TС, MBL1СС. Изучена молочная продуктивность (удой, жирномолочность, количество молока базисной жирности), количество соматических клеток в молоке и рассчитана экономическая эффективность производства молока от коров с различными генотипами по генам лактоферрина и манноза-связывающего лектина. Установлено, что прибыль у коров с генотипом LTFAА была на 7,91 руб. выше, чем у коров с генотипом LTFAВ, а у животных с генотипом MBL1TC – на 24,69–191,85 руб. больше, чем у особей с генотипами MBL1СС и MBL1TТ, а более высокая прибыль на 1 голову была получена от коров с генотипами LTFABMBL1CC и LTFAAMBL1TC, что составило 3249,49 и 2855,40 руб. соответственно.</p></abstract><trans-abstract xml:lang="en"><p>In cows of the Belarusian black-motley breed, the polymorphism of genes for lactoferrin and mannose-binding leсtin was established. The genotypes LTFAA, LTFAB and MBL1TT, MBL1TC, MBL1CC were identified. The milk productivity (yield, fat content, amount of milk of basic fat content), the number of somatic cells in milk were studied, and the economic efficiency of milk production from cows with different genotypes for the genes of lactoferrin and mannose-binding leсtin was calculated. It was found that the profit in cows with the LTFAA genotype was 7.91 rubles higher than in cows with the LTFAB genotype, in individuals with the MBL1CC and MBL1TT genotypes, and a higher profit per head was obtained from cows with the LTFABMBL1CC and LTFAAMBL1TC genotypes, which amounted to 3249.49 and 2855.40 rubles respectively.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ген лактоферрина</kwd><kwd>ген манноза-связывающего лектина</kwd><kwd>количество соматических клеток</kwd><kwd>экономическая эффективность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lactoferrin gene</kwd><kwd>mannose-binding leсtin gene</kwd><kwd>somatic cell count</kwd><kwd>economic efficiency</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">Лучко, И. Т. Воспаление молочной железы у коров (этиология, патогенез, диагностика, лечение и профилактика) / И. Т. 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