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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/issn2072-2419.2025.1.162</article-id><article-id custom-type="elpub" pub-id-type="custom">ivm-1630</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>ЗООГИГИЕНА, САНИТАРИЯ, КОРМЛЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOHYGIENE, SANITATION, FEEDING</subject></subj-group></article-categories><title-group><article-title>Влияние Фульвогумата на аминокислотный состав мышечной ткани цыплят-бройлеров</article-title><trans-title-group xml:lang="en"><trans-title>The effect of Fulvohumate on the amino acid composition of muscletissue in broiler chickens</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8755-414X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нечитайло</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nechitailo</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нечитайло К.С. – канд. биол. наук, ст. науч. сотр. </p></bio><bio xml:lang="en"><p>Nechitailo K.S. – PhD of Biological Sciences, researcher </p></bio><email xlink:type="simple">k.nechit@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5125-5981</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сизова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sizova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сизова Е.А. – д-р биол. наук, вед. науч. сотр. </p></bio><bio xml:lang="en"><p>Sizova E.A. – Doctor of Biological Sciences, Leading Researcher</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/0000-0003-3086-681X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шошин</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shoshin</surname><given-names>D. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шошин Д.Е. – мл. науч. сотр. </p></bio><bio xml:lang="en"><p> Shoshin D.E. </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Федеральный научный центр биологических систем и агротехнологий Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Center for Biological Systems and Agricultural Technologies of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>03</day><month>06</month><year>2025</year></pub-date><volume>0</volume><issue>1</issue><fpage>162</fpage><lpage>170</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нечитайло К.С., Сизова Е.А., Шошин Д.Е., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Нечитайло К.С., Сизова Е.А., Шошин Д.Е.</copyright-holder><copyright-holder xml:lang="en">Nechitailo K.S., Sizova E.A., Shoshin D.E.</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/1630">https://vetjournal.spbguvm.ru/jour/article/view/1630</self-uri><abstract><p>В настоящее время важной задачей является повышение качества продукции животноводства. В этом контексте особое внимание уделяется анализу биологической ценности мясной продукции, которая напрямую зависит от состава белковых компонентов. Таким образом, целью исследования стала оценка влияния фульвогумата на аминокислотный состав мышечной ткани цыплят-бройлеров. Установлено, что введение фульвогумата приводило к изменению содержание аминокислот (АМК) мышечной ткани. При оценке профиля незаменимых аминокислот выявлено, что введение фульвогумата приводило к статистически значимому увеличению их суммы в целом на 3,55 % (Р≤0,05), и в частности: лейцина и изолейцина на 4,35 % (Р≤0,05), валина на 5,19 % (Р≤0,05), лизина на 5,15 % (Р≤0,05), фенилаланина на 4,23 % (Р≤0,05). Введение фульвогумата обеспечивает увеличение гистидина на 6,91 % (Р≤0,01) и аргинина на 5,68 % (Р≤0,01) в сравнении с группой основного рациона. В ходе исследования был установлен аминокислотный скор, свидетельствующий о влиянии фульвогумата на биологическую ценность анализируемой мышечной ткани. Введение добавки способствовало увеличению скора фенилаланина на 4,23 % (Р≤0,05) и скора других незаменимых аминокислот, таких как: лейцин+изолейцин на 4,35 % (Р≤0,05), валин на 5,19 % (Р≤0,05), лизин на 5,15 % (Р≤0,05), гистидин на 6,91 % (Р≤0,01) в сравнении с группой основного рациона. Таким образом, данные результаты могут быть использованы при оптимизации кормления животных, направленных на повышение качества продукции животноводства. Введение фульвогумата в рацион кормления цыплят-бройлеров способствует улучшению аминокислотного состава мышечной ткани, что повышает ее биологическую ценность и может привести к улучшению качества мясной продукции.</p></abstract><trans-abstract xml:lang="en"><p>Currently, an important task is to improve the quality of livestock products. In this context, special attention is paid to the analysis of the biological value of meat products, which directly depends on the composition of protein components. Thus, the purpose of our study was to evaluate the effect of fulvohumate on the amino acid composition of muscle tissue of broiler chickens. It was found that the administration of fulvohumate led to a change in the amino acid composition of muscle tissue. When assessing the profile of essential amino acids, it was revealed that the introduction of fulvohumate led to a statistically significant increase in the amount of leucine and isoleucine by 4.35% (P≤0.05), valine by 5.19% (P≤0.05), lysine by 5, 15% (P≤0.05), phenylalanine by 4.23% (P≤0.05). The studied supplement led to an increase in the amount of essential amino acids by 3.55% (P≤0.05) compared to the control group. The introduction of fulvohumate provides an increase in histidine by 6.91% (P≤0.01) and arginine by 5.68% (P≤0.01) in comparison with the main diet group. During the study, an amino acid score was established, indicating the effect of fulvohumate on the biological value of the analyzed muscle tissue. The introduction of the supplement contributed to an increase in the rate of phenylalanine by 4.23% (P≤0.05) and the rate of other essential amino acids, such as: leucine + isoleucine by 4.35% (P≤0.05), valine by 5.19(P P≤0.05), lysine by 5.15% (P≤0.05), histidine by 6.91% (P≤0.01) in comparison with the main diet group. Thus, these results can be used to optimize animal feeding aimed at improving the quality of livestock products. The introduction of fulvohumate into the diet of broiler chickens helps improve the amino acid composition of muscle tissue, which increases its biological value and can lead to improved quality of meat products.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>цыплята-бройлеры</kwd><kwd>аминокислоты</kwd><kwd>биологическая ценность</kwd><kwd>аминокислотный состав</kwd><kwd>мышечная ткань</kwd></kwd-group><kwd-group xml:lang="en"><kwd>broiler chickens</kwd><kwd>amino acids</kwd><kwd>biological value</kwd><kwd>amino acid composition</kwd><kwd>muscle tissue</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования проведены выполнена в соответствии с планом НИР ФГБНУ ФНЦ БСТ РАН в рамках выполнения проекта FNWZ-2024-0002.</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">Adhikari, S. 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