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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">meat</journal-id><journal-title-group><journal-title xml:lang="en">Theory and practice of meat processing</journal-title><trans-title-group xml:lang="ru"><trans-title>Теория и практика переработки мяса</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2414-438X</issn><issn pub-type="epub">2414-441X</issn><publisher><publisher-name>ФГБНУ «Федеральный научный центр пищевых систем им. В.М. Горбатова» РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21323/2414-438X-2021-6-4-294-299</article-id><article-id custom-type="elpub" pub-id-type="custom">meat-193</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Impact of feed supplementation with balsam poplar buds on performance of young bulls</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5006-3224</contrib-id><name-alternatives><name name-style="western" xml:lang="en"><surname>Balji</surname><given-names>Yu.</given-names></name></name-alternatives><bio xml:lang="en"><p>Yuriy Balji, Candidate of Veterinary Science, Associate Professor, Department of Veterinary Sanitary</p><p>62, Zhenis avenue, 010011, Nur-Sultan, Republic of Kazakhstan</p><p>Tel.: +7–701–979–67–98</p></bio><email xlink:type="simple">Balji-Y@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/0000-0001-5121-1957</contrib-id><name-alternatives><name name-style="western" xml:lang="en"><surname>Knicky</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="en"><p>Martin Knicky, PhD, Doctor of Philosophy, Researcher, Department of Agriculture and Food</p><p>Box 7033, 750 07, Uppsala, Sweden</p><p>Tel.: +46–10–516–69–19</p></bio><email xlink:type="simple">martin.knicky@ri.se</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>S. Seifullin Kazakh Agro Technical University</institution><country>Kazakhstan</country></aff><aff xml:lang="en" id="aff-2"><institution>RISE Research Institutes of Sweden</institution><country>Sweden</country></aff><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>02</day><month>01</month><year>2022</year></pub-date><volume>6</volume><issue>4</issue><fpage>294</fpage><lpage>299</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Balji Y., Knicky M., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Balji Y., Knicky M.</copyright-holder><copyright-holder xml:lang="en">Balji Y., Knicky M.</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.meatjournal.ru/jour/article/view/193">https://www.meatjournal.ru/jour/article/view/193</self-uri><abstract><p>There is an urgent need to develop new strategies to minimize the environmental impact of animal production and support sustainability of food production and consumption. Feed additives have been for a long time used in animal nutrition to improve animal growth and performance as well as animal health. Balsam poplar plants (Populus balsamifera) is well known as a rich source of bioactive compounds with positive health effects, and might be used in agriculture as a feed additive for ruminants. The aim of the present study was to evaluate the effect of balsam poplar-based additives on growth and performance of fattening young bulls of Simmental breed. In the present study, we used 4 combinations of extract from balsam poplar buds or its components as a feed additives. The animals were given the supplements at the age of 15 months, 3 months before slaughter. The growth and slaughter characteristics of young bulls were studied. After the first and second month of feeding with dietary supplements, animals from the groups fed 10% balsam poplar buds extract and dry shredded balsam poplar buds had significantly higher live weight compared to the control animals fed a diet without any supplements (P &lt; 0.05). At slaughter, group fed 10% balsam poplar buds extract had significantly higher live weight compared to control. Average daily gain was also greatest in that group. Major sensory as well as physical and chemical parameters were not affected by balsam poplar-based supplements (p &gt; 0.05 for all) and were in line with regulatory meat hygiene requirements.</p></abstract><kwd-group xml:lang="en"><kwd>nutrition</kwd><kwd>additive</kwd><kwd>bioactive compounds</kwd><kwd>slaughter characteristics</kwd><kwd>meat quality</kwd></kwd-group><funding-group><funding-statement xml:lang="en">Financial support for this project was provided by the Ministry of Education and Science of the Republic of Kazakhstan (project number — AP08051983 “Development and implementation of multifunctional feed additives to increase the productivity of livestock animals with regard to quality and safety of livestock produсts”)</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">Duff, G. C. (2007). 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