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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">agronauka</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука Евро-Северо-Востока</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Science Euro-North-East</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-9081</issn><issn pub-type="epub">2500-1396</issn><publisher><publisher-name>FARC North-East</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30766/2072-9081.2021.22.3.360-366</article-id><article-id custom-type="elpub" pub-id-type="custom">agronauka-799</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>ОРИГИНАЛЬНЫЕ СТАТЬИ. КОРМОПРОИЗВОДСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ОRIGINAL SCIENTIFIC ARTICLES. FODDER PRODUCTION</subject></subj-group></article-categories><title-group><article-title>Уровни содержания протеина, нерастворимого в кислотном  детергенте, в злаковых травах и кормах из них</article-title><trans-title-group xml:lang="en"><trans-title>Levels of acid detergent insoluble protein in grasses and feeds made from them</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3480-3464</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Косолапов</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosolapov</surname><given-names>W. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Косолапов Владимир Михайлович, доктор с.-х. наук, академик РАН, директор</p><p>Научный городок, корпус 1, г. Лобня, Московская область, 141055</p></bio><bio xml:lang="en"><p>Wladimir M. Kosolapov, DSc in Agricultural science, academician of RAS, Head</p><p>Nauchny Gorodok, building 1, Lobnya, Moscow region, 141055</p></bio><email xlink:type="simple">vnii.kormov@yandex.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>Худякова</surname><given-names>Х. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Khudyakova</surname><given-names>H. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Худякова Хатима Каримовна, кандидат с.-х. наук, ведущий научный сотрудник лаборатории физикохимических исследований</p><p>Научный городок, корпус 1, г. Лобня, Московская область, 141055</p></bio><bio xml:lang="en"><p>Hatima K. Khudyakova, PhD in Agricultural science, leading researcher, the Laboratory of physical and chemical studies</p><p>Nauchny Gorodok, building 1, Lobnya, Moscow region, 141055</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 кормопроизводства и агроэкологии&#13;
имени В.Р. Вильямса»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Williams Research Center of Forage Production and Agroecology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>23</day><month>06</month><year>2021</year></pub-date><volume>22</volume><issue>3</issue><fpage>360</fpage><lpage>366</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Косолапов В.М., Худякова Х.К., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Косолапов В.М., Худякова Х.К.</copyright-holder><copyright-holder xml:lang="en">Kosolapov W.M., Khudyakova H.K.</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.agronauka-sv.ru/jour/article/view/799">https://www.agronauka-sv.ru/jour/article/view/799</self-uri><abstract><p>Целью настоящих исследований является  оценка уровня теплового повреждения путем определения  содержания нерастворимого в кислотном детергенте протеина (КДНП) в многолетних злаковых кормовых травах (костреце безостом, овсянице луговой, тимофеевке луговой)  в зависимости от фазы их вегетации (начало выхода в трубку, колошение и цветение), а также в приготовленных из них в те же фазы силосе и сенаже. Пробы для анализов высушивали при температуре 60-65 о С. Азот КДНП определяли в остатке кислот- но-детергентной клетчатки (КДК), полученном фильтрованием раствора кислотного детергента через бумажный фильтр. По мере роста трав наблюдается увеличение содержания КДК в них, что сопровождается также повышением и КДНП в тимофеевке луговой и особенно в овсянице луговой, которая характеризовалась более высокими темпами накопления КДК. В костреце безостом возрастание КДК не привело к повышению концентрации КДНП в траве в связи сo снижением его доли в КДК. Содержание КДНП в зеленой траве составило  от 0,85 до 1,58 % в сухом веществе, а КДК – от 27,0 до 45,8 %, корреляция между ними не обнаружена. Консервирование трав во все фазы их роста вызвало увеличение содержания КДК по сравнению с исходной травой, но при этом массовая доля КДНП в сухом веществе силоса и сенажа была не больше, чем в исходной траве,  что обусловлено более низкой массовой долей КДНП в КДК по сравнению с травами. В связи с этим отмечается,  что при соблюдении технологии заготовки силоса и сенажа не наблюдается повышения уровня теплового повреждения этих кормов. Обнаружена тесная обратная зависимость доли КДНП в сыром протеине (СП) от содержания последнего. Коэффициенты корреляции между этими показателями составили -0,83; -0,88 и -0,92 для трав, силоса и сенажа соответственно. Наименьший процент КДНП в СП отмечен в раннюю фазу роста трав. В связи с этим отмечается необходимость их уборки в более ранние фазы роста, так как по мере их роста снижается содержание СП и повышается доля в нем неусвояемого протеина. При наличии органолептических признаков теплового повреждения кормов, которые приведены в статье, рекомендуется вносить поправку на содержание СП на основании результата анализа на КДНП.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of this research is to assess the level of thermal damage by determining the content of acid detergent insoluble crude protein (ADICP) in perennial cereal forage grasses Bromus inermis, Festuca pratensis, Phleum, depending on the phase of their vegetation (at the beginning of shooting, during the earing and flowering phases), as well as in silage and haylage prepared from them during the same phases. Samples for analyzes were dried at the temperature of 60-65 °C. Nitrogen of ADICP was determined in the residue of ADF (acid detergent fiber) obtained by filtering a solution of acid detergent through a paper filter. With the growth of grasses, an increase in the content of ADF in them was observed, followed by an increase in ADICP in Phleum and especially in Festuca pratensis which was characterized by higher rates of ADF accumulation. In Bromus inermis, the increase in ADF did not lead to an increase in the concentration of ADICP in the grass due to a decrease of its portion in ADF. The content of ADICP in green grass ranged from 0.85 to 1.58 % in dry matter, ADF ‒ from 27.0 to 45.8 %, no correlation was found between them. Conservation of grasses in all phases of their growth caused an increase in the content of ADF compared to the original grass, but the mass fraction of ADICP in the dry matter of silage and haylage was not higher than in the original grass, due to a lower mass fraction of ADICP in the ADF compared to grasses. In this regard, it is noted that if the technology of harvesting silage and haylage is observed, there is no increase in the level of thermal damage to these feeds. In this regard, it is noted, that when the preparation of silage and haylage is carried out according to the required technology, there is no increase in the level of thermal damage to these feeds. There is close correlation between the percentage of ADICP in CP (crude protein) and the contents of CP. The correlation coefficients were -0.83; -0.88 and -0.92 for grasses, silage and haylage, respectively. The lowest percentage of ADICP in CP was observed in the early phases of grass growth. In this regard, there is a need to harvest them in earlier growth phases, since the content of CP decreases with growth and the proportion of indigestible protein in it increases. If there are organoleptic signs of thermal damage to feeds given in the article, it is recommended to make an amendment to CP content on the basis of the result of the analysis for the content of ADICP.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>многолетние злаковые кормовые травы</kwd><kwd>фазы роста</kwd><kwd>силос</kwd><kwd>сенаж</kwd><kwd>киcлотно-детергентная  клетчатка</kwd><kwd>сырой протеин</kwd><kwd>кислотно-детергентный нерастворимый протеин (КДНСП)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>perennial fodder grasses</kwd><kwd>phase of growth</kwd><kwd>silage</kwd><kwd>haylage</kwd><kwd>acid detergent fiber</kwd><kwd>crude protein</kwd><kwd>acid detergent insoluble protein (ADICP)</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Минобрнауки РФ в рамках Государственного задания ФГБНУ «Федеральный научный центр кормопроизводства и агроэкологии имени В. Р. Вильямса» (тема №0597-2019-0026). Авторы благодарят рецензентов за вклад в экспертную оценку работы.</funding-statement><funding-statement xml:lang="en">The research was carried out under the support of the Ministry of Science and Higher Education of the Russian Federation within the state assignment of the Federal Williams Research Center of Forage Production and Agroecology (No. 0597-2019-0026).   The authors thank the reviewers for their contribution to the peer review of this work.</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">Van Soest P. J. Use of detergents in analysis of fibrous feeds. III. Study of effects of heating and drying on yield of fiber and lignin of forages. Journal of the A.O.A.C. 1965;48(4):785-790. URL: https://academic.oup.com/jaoac/article-abstract/48/4/785/5729656</mixed-citation><mixed-citation xml:lang="en">Van Soest P. J. 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