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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2024-385-8-74-81</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3218</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>ЗООТЕХНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOTECHNICS</subject></subj-group></article-categories><title-group><article-title>Оценка влияния скармливания совместно экструдированных компонентов рациона на переваримость корма, кишечный микробиом и обмен остеотропных элементов у цыплят-бройлеров</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of the effect of feeding co-extruded diet components on feed digestibility, intestinal microbiome and metabolism of osteotropic elements 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/0000-0002-1589-2211</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яушева</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yausheva</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена Владимировна Яушева, старший научный сотрудник, кандидат биологических наук</p><p>ул. 9 Января, 29, Оренбург, 46000</p></bio><bio xml:lang="en"><p>Elena Vladimirovna Yausheva, Senior Researcher, Candidate of Biological Sciences</p><p>29 January 9th Str., Orenburg, 46000</p></bio><email xlink:type="simple">vasilena56@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/0000-0002-3946-8247</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Холодилина</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kholodilina</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Николаевна Холодилина, ведущий научный сотрудник, кандидат сельскохозяйственных наук; доцент кафедры экологии и природопользования, кандидат сельскохозяйственных наук</p></bio><bio xml:lang="en"><p>Tatyana Nikolaevna Kholodilina, Leading Researcher, Candidate of Agricultural Sciences; Associate Professor of the Department of Ecology and Nature Management, Candidate of Agricultural Sciences</p><p>29 January 9th Str., Orenburg, 46000</p><p>13 Pobedy Ave., Orenburg, 460018</p></bio><email xlink:type="simple">xolodilina@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5134-0396</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рязанцева</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryazantseva</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кристина Владимировна Рязанцева, младший научный сотрудник</p><p>ул. 9 Января, 29, Оренбург, 46000,</p></bio><bio xml:lang="en"><p>Kristina Vladimirovna Ryazantseva; Junior Researcher</p><p>29 January 9th Str., Orenburg, 46000</p></bio><email xlink:type="simple">reger94@bk.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>Елена Анатольевна Сизова, ведущий научный сотрудник, доцент, доктор биологических наук, кандидат биологических наук; профессор научно-образовательного центра «Биологические системы и нанотехнологии», доцент, доктор биологических наук, кандидат биологических наук</p><p>ул. 9 Января, 29, Оренбург, 46000</p><p>пр-т Победы, 13, Оренбург, 460018</p></bio><bio xml:lang="en"><p>Elena Anatolyevna Sizova, Leading Researcher, Associate Professor, Doctor of Biological Sciences, Candidate of Biological Sciences; Professor of the Scientific and Educational Center “Biological Systems and Nanotechnology”, Associate Professor, Doctor of Biological Sciences, Candidate of Biological Sciences</p><p>29 January 9th Str., Orenburg, 46000</p><p>13 Pobedy Ave., Orenburg, 460018</p></bio><email xlink:type="simple">sizova.l78@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4298-1663</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Климова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Klimova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Татьяна Андреевна Климова, младший научный сотрудник</p><p>ул. 9 Января, 29, Оренбург, 46000</p></bio><bio xml:lang="en"><p>Tatyana Andreevna Klimova; Junior Research Assistant</p><p>29 January 9th Str., Orenburg, 46000</p></bio><email xlink:type="simple">ga-lche-nok@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральный научный центр биологических систем и агротехнологий Российской академии наук<country>Россия</country></aff><aff xml:lang="en">Federal Scientific Center for Biological Systems and Agricultural Technologies of the Russian Academy of Sciences<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Федеральный научный центр биологических систем и агротехнологий Российской академии наук; Оренбургский государственный университет<country>Россия</country></aff><aff xml:lang="en">Federal Scientific Center for Biological Systems and Agricultural Technologies of the Russian Academy of Sciences; Orenburg State University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>23</day><month>08</month><year>2024</year></pub-date><volume>1</volume><issue>8</issue><fpage>74</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яушева Е.В., Холодилина Т.Н., Рязанцева К.В., Сизова Е.А., Климова Т.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Яушева Е.В., Холодилина Т.Н., Рязанцева К.В., Сизова Е.А., Климова Т.А.</copyright-holder><copyright-holder xml:lang="en">Yausheva E.V., Kholodilina T.N., Ryazantseva K.V., Sizova E.A., Klimova T.A.</copyright-holder><license 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.vetpress.ru/jour/article/view/3218">https://www.vetpress.ru/jour/article/view/3218</self-uri><abstract><p>Отруби, как источник клетчатки в рационах, уже не воспринимаются как антипитательный компонент, напротив, рассматривается как пребиотик, стимулирующий работу кишечного микробиома и фактор снижающий стоимость рациона. При этом сохраняется необходимость нивелирования некоторых негативных аспектов в виде повышения количества труднопереваримой клетчатки и снижения усвоения минеральных элементов из рационов, в частности кальция.</p><sec><title>Методы</title><p>Методы. Методом снижения антипитательности и улучшения функциональных свойств кормов, обладающих повышенной доступностью компонентов, может выступать экструзия.</p><p>Цели исследования — изучение влияния скармливания совместно экструдированных компонентов рациона: пшеничных отрубей и известняковой муки на переваримость корма, морфометрические характеристики желудочно-кишечного тракта и состояние его микробиома, а также метаболизм созависимых с кальцием минералов в скелетной структуре.</p></sec><sec><title>Результаты</title><p>Результаты. Совместное экструдирование пшеничных отрубей и известняковой муки, как источника кальция, приводило к улучшению переваримости питательных веществ (сырого жира) у птицы. Анализ минерального обмена показал увеличение содержания железа, цинка и магния в костной ткани, кальция, цинка, меди и магния — в бедренной кости птицы II группы в сравнении с I. Изменения в микробиоме слепой кишки при скармливании экструдата с карбонатом кальция были связаны с повышением доли бактерий (Faecalibacterium), являющихся активными продуцентами ряда короткоцепочечных жирных кислот (пропионата, бутирата). В результате показана перспектива использования совместно экструдированных компонентов: углеводного (отруби) и минерального (известняковая мука) в кормах в рамках функциональной и экономической оптимизации рационов.</p></sec></abstract><trans-abstract xml:lang="en"><p>Bran, as a source of fiber in diets, is no longer perceived as an anti-nutritional component; on the contrary, it is considered as a prebiotic, stimulating the functioning of the intestinal microbiome and a factor reducing the cost of the diet. At the same time, there remains a need to level out some negative aspects in the form of an increase fiber for and a decrease in the absorption of mineral elements from diets, in particular calcium. </p><p>Extrusion can be a method of reducing antinutritional properties and improving the functional properties of feeds with increased availability of components. The purpose of the study was to study the effect of feeding co-extruded diet components: wheat bran and limestone flour on feed digestibility, morphometric characteristics of the gastrointestinal tract and the state of its microbiome, as well as the metabolism of calcium-codependent minerals in the skeletal structure.</p><p>The combined extrusion of wheat bran and limestone flour, as a source of calcium, led to improved digestibility of nutrients (crude fat) in poultry. Analysis of mineral metabolism showed an increase in the content of iron, zinc and magnesium in bone tissue, and calcium, zinc, copper and magnesium in the femur of birds of group II in comparison with I. Changes in the microbiome of the cecum, when feeding extrudate with calcium carbonate, were associated with an increase in the proportion of bacteria (Faecalibacterium), which are active producers of a number of short-chain fatty acids (propionate, butyrate). As a result, the prospect of using jointly extruded components: carbohydrate (bran) and mineral (limestone flour) in feeds as part of the functional and economic optimization of diets is shown.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>экструзия</kwd><kwd>известняковая мука</kwd><kwd>переваримость</kwd><kwd>микробиом</kwd><kwd>минеральный обмен</kwd></kwd-group><kwd-group xml:lang="en"><kwd>extrusion</kwd><kwd>limestone flour</kwd><kwd>digestibility</kwd><kwd>microbiome</kwd><kwd>mineral metabolism</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование выполнено при финансовой поддержке Российского научного фонда № 23-16-00165. https://rscf.ru/project/23-16-00165/</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>This research was funded by Russian Science Foundation No. 23-16-00165. https://rscf.ru/project/23-16-00165/</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">Asasi R., Ahmadi H., Torshizi M.A.K., Torshizi R.V., Shariatmadari F. 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