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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/issn2072-2419.2023.3.180</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1128</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>Аминокислотный состав молока коров черно-пестрой породы в зимне-весенний период года (сообщение 1)</article-title><trans-title-group xml:lang="en"><trans-title>Amino acid composition of milk of black-and-white cows in the winter-spring period of the year (message 1)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4267-5300</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>мл. науч. сотр.</p></bio><bio xml:lang="en"><p>junior scientific collaborator</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>Zaitsev</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>вед. науч. сотр., д-р. биол. н., проф.</p></bio><bio xml:lang="en"><p>leading scientific collaborator, doctor of biol. sciences, professor</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>ФГБНУ «Федеральный исследовательский центр животноводства – ВИЖ имени академика Л.К. Эрнста» (ФГБНУ ФИЦ ВИЖ им. 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>2023</year></pub-date><pub-date pub-type="epub"><day>13</day><month>10</month><year>2023</year></pub-date><volume>0</volume><issue>3</issue><fpage>180</fpage><lpage>187</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колесник Н.С., Зайцев С.Ю., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Колесник Н.С., Зайцев С.Ю.</copyright-holder><copyright-holder xml:lang="en">Kolesnik N.S., Zaitsev 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/1128">https://vetjournal.spbguvm.ru/jour/article/view/1128</self-uri><abstract><p>Определение аминокислотного (АК) состава молока коров, в особенности по незаменимым аминокислотам, являются важным и актуальным. В последнее время наблюдается рост публикаций по совершенствованию методов анализа АК-состав молока животных, прежде всего – коров. Цель нашего исследования – это изучение особенностей аминокислотного состава молока коров черно-пестрой породы в зимне-весенний период. Исследования проведены с образцами племенного хозяйства «Ладожское» (Краснодарский край, Усть-Лабинский район). В группу 1 (январь) вошло 12 животных, в группы 2 и 3 (март и апрель) - по 22 животных, т.е. в сумме 56 животных. Кормление коров осуществлялось согласно общепринятым нормам. Определение АК проводили методом ионообменной хроматографии с постколоночной дериватизацией проб нин-гидрином на системе LC-20 Prominence (Shimadzu, Япония) и колонкой с ионообменной смолой 4,6х150 мм (Севко, Россия). Получены новые данные по АК составу молока коров черно-пестрой породы. На взгляд авторов важны не только абсолютные значения АК в молоке, но и их соотношения. Впервые получены определенные «ряды» по содержанию АК в образцах молока коров: Glu &gt;&gt; Leu &gt; Lys = Pro &gt; Asp &gt; Val &gt; Phe ≥ Ile ≥ Tyr &gt; Arg = Ser &gt; Ala = Thr ≥ His &gt; Met &gt; Gly &gt; Cys (январь); Glu &gt;&gt; Leu &gt; Pro &gt; Lys &gt; Asp &gt; Val &gt; Phe &gt; Arg ≥ Ile = Tyr ≥ Ser &gt; Ala = Thr &gt; His ≥ Met &gt; Gly &gt; Cys (март); Glu &gt;&gt; Leu &gt; Pro &gt; Lys = Arg &gt; Asp &gt; Val &gt; Phe ≥ Ile ≥ Tyr &gt; Ser &gt; Ala ≥ Thr ≥ His ≥ Met &gt; Gly &gt; Cys (апрель). В наших исследованиях показано снижение количества АК в молоке коров к весне (в марте и, особенно, в апреле), что можно объяснить адаптацией физиолого-биохимических процессов в организме животных в этот период.</p></abstract><trans-abstract xml:lang="en"><p>Determination of the amino acid (AA) composition of cow milk, especially in terms of essential amino acids, is important and relevant. Recently, there has been an increase in publications on the improvement of methods for analyzing the AA composition of animal milk, primarily cows. The purpose of our research is to study the features of the amino acid composition of the milk of Black-and-White cows in the winter-spring period. The studies were carried out with samples of the “Ladozhskoye” breeding farm (Krasnodar Territory, Ust-Labinsky District). Group 1 (January) included 12 animals, groups 2 and 3 (March and April) included 22 animals each, i.e. a total of 56 animals. The cows were fed according to generally accepted norms. The determination of AA was carried out by ion-exchange chromatography with post-column derivatization of samples with ninhydrin on an LC-20 Prominence system (Shimadzu, Japan) and a column with an ion-exchange resin 4.6x150 mm (Sevko, Russia). New data on the AA composition of the milk of Black-and-White cows have been obtained. To author’s opinion, not only the absolute values of AA in milk are important, but also their ratios. For the first time, particular “rows” on the AA content in cow milk samples were obtained: Glu &gt;&gt; Leu &gt; Lys = Pro &gt; Asp &gt; Val &gt; Phe ≥ Ile ≥ Tyr &gt; Arg = Ser &gt; Ala = Thr ≥ His &gt; Met &gt; Gly &gt; Cys (January) ; Glu &gt;&gt; Leu &gt; Pro &gt; Lys &gt; Asp &gt; Val &gt; Phe &gt; Arg ≥ Ile = Tyr ≥ Ser &gt; Ala = Thr &gt; His ≥ Met &gt; Gly &gt; Cys (March); Glu &gt;&gt; Leu &gt; Pro &gt; Lys = Arg &gt; Asp &gt; Val &gt; Phe ≥ Ile ≥ Tyr &gt; Ser &gt; Ala ≥ Thr ≥ His ≥ Met &gt; Gly &gt; Cys (April). Our studies have shown a decrease in the AA amount of in cow's milk by spring (in March and, especially, in April), which can be explained by the adaptation of physiological and biochemical processes in the animal body during this period.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>молоко коров</kwd><kwd>черно-пестрая порода</kwd><kwd>зимне-весенний период</kwd><kwd>аминокислотный состав</kwd><kwd>высо-коэффективная жидкостная хроматография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cow's milk</kwd><kwd>black-and-white breed</kwd><kwd>winter-spring period</kwd><kwd>amino acid composition</kwd><kwd>high performance liquid chromatography</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке фундаментальных научных исследований Министерства науки и высшего образования РФ в рамках выполнения государственного задания на 2023 г. (регистрационный номер ЕГИСУ темы НИР FGGN 0445-2021-0002).</funding-statement><funding-statement xml:lang="en">The work was carried out with the financial support of fundamental scientific research by the Ministry of Science and Higher Education of the Russian Federation as part of the implementation of the state task for 2023 (registration number of the EGISU research topic FGGN 0445-2021-0002).</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">Dołowy, M. Application of TLC, HPLC and GC methods to the study of amino acid and peptide enantiomers: a review / M. Dołowy, A. Pyka // Biomedical Chromatography. – 2014. – Vol. 28. – P. 84-101. – DOI 10.1002/bmc.3016</mixed-citation><mixed-citation xml:lang="en">Dołowy M, Pyka A, Application of TLC, HPLC and GC methods to the study of amino acid and peptide enantiomers: a review. 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