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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">vimjour</journal-id><journal-title-group><journal-title xml:lang="ru">Сельскохозяйственные машины и технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Machinery and Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7599</issn><publisher><publisher-name>Federal State Budgetary Scientific Institution «Federal Scientific Agroengineering Center VIM»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22314/2073-7599-2023-17-2-35-39</article-id><article-id custom-type="elpub" pub-id-type="custom">vimjour-514</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>ТЕХНИКА ДЛЯ ЖИВОТНОВОДСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MACHINERY FOR ANIMAL INDUSTRY</subject></subj-group></article-categories><title-group><article-title>Сравнение внутрирубцовых систем мониторинга физиологического состояния крупного рогатого скота</article-title><trans-title-group xml:lang="en"><trans-title>Comparison of In-Rumen Systems for Monitoring the Physiological State of Cattle</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Владимиров</surname><given-names>Ф. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Vladimirov</surname><given-names>F. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федор Евгеньевич Владимиров - научный сотрудник</p><p>Москва</p></bio><bio xml:lang="en"><p>Fedor E. Vladimirov - researcher</p><p>Moscow</p></bio><email xlink:type="simple">fvladimirov21@gmail.com</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>Базаев</surname><given-names>С. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazaev</surname><given-names>S. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савр Олегович Базаев - кандидат сельскохозяйственных наук, научный сотрудник </p><p>Москва</p></bio><bio xml:lang="en"><p>Savr O. Bazaev - Ph.D.(Eng.), researcher</p><p>Moscow</p></bio><email xlink:type="simple">sbazaeff@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>Хакимов</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Khakimov</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артем Рустамович Хакимов - младший научный сотрудник</p><p>Москва</p></bio><bio xml:lang="en"><p>Artem R. Khakimov - junior researcher</p><p>Moscow</p></bio><email xlink:type="simple">arty.hv@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный научный агроинженерный центр ВИМ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Agroengineering Center VIM</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>22</day><month>06</month><year>2023</year></pub-date><volume>17</volume><issue>2</issue><fpage>35</fpage><lpage>39</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Владимиров Ф.Е., Базаев С.О., Хакимов А.Р., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Владимиров Ф.Е., Базаев С.О., Хакимов А.Р.</copyright-holder><copyright-holder xml:lang="en">Vladimirov F.E., Bazaev S.O., Khakimov A.R.</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.vimsmit.com/jour/article/view/514">https://www.vimsmit.com/jour/article/view/514</self-uri><abstract><p>Отметили, что для раннего выявления подострого ацидоза рубца может использоваться метод, основанный на постоянном контроле за уровнем кислотности рубцового содержимого с помощью беспроводных датчиков pH. Основными требованиями к таким устройствам являются надежная работа и точность измерения. (Цель исследования) Определить функциональность и точность датчиков eBolus (США) и BoviSan (Россия, ФГБНУ ФНАЦ ВИМ) в течение заявленного срока службы 150 дней. (Материалы и методы) Трем дойным коровам с фистулой рубца на 154 дня вводили по два болюса от каждого производителя. В первый день измерений болюсы после активации и калибровки выдерживали последовательно в буферных растворах с pH 4 и pH 7 при регулируемой температуре (39 градусов Цельсия) не менее 2 часов. Через каждые 14 дней болюсы извлекались из рубца и повторно тестировались в буферных растворах. (Результаты и обсуждение) Средний срок службы eBolus составил 82 дня (от 28 до 126 дней). В сравнении с ними болюсы BoviSan регистрировали pH в течение всего заявленного срока службы. Доверительный интервал 95% средней разницы рН для болюсов eBolus (от –0,02 до 0,19) не показал систематической ошибки. У BoviSan доверительный интервал средней разницы предполагает систематическое отрицательное смещение pH (от –0,33 до –0,25). (Выводы) Для реального использования болюсы eBolus должны работать более надежно, а болюсы BoviSan должны обеспечивать более высокую точность измерения.  </p></abstract><trans-abstract xml:lang="en"><p>This paper explores a method for the early detection of subacute rumen acidosis through continuous monitoring of rumen content acidity using wireless pH sensors. The study emphasizes the importance of reliable device operation and measurement accuracy as primary requirements for such devices. (Research purpose) This study aims to evaluate the functionality and accuracy of the eBolus (USA) and BoviSan (Russia, FSBSI FSAC VIM) sensors throughout their declared service life of 150 days. (Materials and methods) Three dairy cows with a rumen fistula were administered two boluses from each manufacturer during a period of 154 days. In order to ensure accurate measurements, the boluses were activated and calibrated prior to use. On the first day of data collection, the activated and calibrated boluses were sequentially immersed in buffer solutions with a pH of 4 and pH of 7. The buffer solutions were maintained at a controlled temperature of 39 degrees Celsius for a minimum of 2 hours. At 14-day intervals, the boluses were extracted from the rumen and subjected to retesting in buffer solutions. (Results and discussion) For BoviSan, the confidence interval for the mean difference suggests a systematic negative pH bias (– 0.33 to – 0.25). The average lifespan of the eBolus was determined to be 82 days, with a range of 28 to 126 days. In contrast, BoviSan boluses consistently recorded pH levels throughout their announced lifespan. Statistical analysis of the data revealed a 95% confidence interval for the mean pH difference of the eBolus boluses (– 0.02 to 0.19), indicating no significant bias. Conversely, the confidence interval for the mean difference in pH for BoviSan suggested a consistent negative bias (– 0.33 to – 0.25). (Conclusions) In practical applications, it is essential to ensure enhanced reliability of eBolus boluses, while prioritizing higher measurement accuracy with BoviSan boluses.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коровы</kwd><kwd>содержимое рубца</kwd><kwd>датчик pH</kwd><kwd>болюсы</kwd><kwd>eBolus</kwd><kwd>BoviSan</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cows</kwd><kwd>rumen contents</kwd><kwd>pH sensor</kwd><kwd>boluses</kwd><kwd>eBolus</kwd><kwd>BoviSan</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Plaizier J.C., Danesh M.M., Derakhshani H., Golder H., Khafipour E., Kleen J.L., Lean I., Loor J., Penner G., Zebeli Q. Review: Enhancing gastrointestinal health in dairy cows. Animal. 2012. 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