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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">sibvest</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский вестник сельскохозяйственной науки</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Herald of Agricultural Science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0370-8799</issn><issn pub-type="epub">2658-462X</issn><publisher><publisher-name>Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26898/0370-8799-2023-10-8</article-id><article-id custom-type="elpub" pub-id-type="custom">sibvest-1598</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 И ВЕТЕРИНАРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ZOOTECHNICS AND VETERINARY MEDICINE</subject></subj-group></article-categories><title-group><article-title>Особенности распространения и проявления криптоспоридиоза телят на молочных комплексах Сибири</article-title><trans-title-group xml:lang="en"><trans-title>Specific features of distribution and manifestation of cryptosporidiosis of calves on dairy complexes in Siberia</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>Глотова</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Glotova</surname><given-names>T. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор биологических наук, главный научный сотрудник</p><p>630501, Новосибирская область, р.п. Краснообск, а/я 463</p></bio><bio xml:lang="en"><p>Tatyana I. Glotova, Doctor of Science in Biology, Head Researcher</p><p>PO Box 463, Krasnoobsk, Novosibirsk Region, 630501</p><p> </p></bio><email xlink:type="simple">t-glotova@mail.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>Котенева</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Koteneva</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат ветеринарных наук, ведущий научный сотрудник</p><p>Новосибирская область, р.п. Краснообск</p></bio><bio xml:lang="en"><p>Svetlana V. Koteneva, Candidate of Science in Veterinary Medicine, Lead Researcher</p><p>Krasnoobsk, Novosibirsk Region</p><p> </p></bio><email xlink:type="simple">koteneva-sv@mail.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>Нефедченко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Nefedchenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор ветеринарных наук, ведущий научный сотрудник</p><p>Новосибирская область, р.п. Краснообск</p></bio><bio xml:lang="en"><p>Alexei V. Nefedchenko, Doctor of Science in Veterinary Medicine, Lead Researcher</p><p>Krasnoobsk, Novosibirsk Region</p><p> </p></bio><email xlink:type="simple">homeovet@narod.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>Глотов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Glotov</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор ветеринарных наук, главный научный сотрудник</p><p>Новосибирская область, р.п. Краснообск</p></bio><bio xml:lang="en"><p>Alexander G. Glotov, Doctor of Science in Veterinary Medicine, Head Researcher</p><p>Krasnoobsk, Novosibirsk Region</p></bio><email xlink:type="simple">glotov_vet@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский федеральный научный центр агробиотехнологий Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian Federal Scientific Centre of Agro-BioTechnologies of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>20</day><month>11</month><year>2023</year></pub-date><volume>53</volume><issue>10</issue><fpage>68</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Глотова Т.И., Котенева С.В., Нефедченко А.В., Глотов А.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Глотова Т.И., Котенева С.В., Нефедченко А.В., Глотов А.Г.</copyright-holder><copyright-holder xml:lang="en">Glotova T.I., Koteneva S.V., Nefedchenko A.V., Glotov A.G.</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://sibvest.elpub.ru/jour/article/view/1598">https://sibvest.elpub.ru/jour/article/view/1598</self-uri><abstract><p>Представлены результаты исследования особенностей распространения и клинического проявления криптоспоридиоза крупного рогатого скота в ассоциации с возбудителями вирусной и бактериальной природы. С 2014 по 2023 г. исследовали 666 проб биоматериала (слизистая оболочка трахеи, легкие, средостенный и брыжеечный лимфатические узлы, содержимое сычуга и кишечника), отобранных от павших и вынужденно убитых телят в возрасте до 6 мес с признаками энтеритов и респираторных болезней. Обследовали 94 хозяйства шести областей, двух краев Сибирского региона и Республики Казахстан. Результаты исследований подтверждают широкое распространение криптоспоридий среди телят. Чаще всего выявлялись ооцисты Cryptosporidium parvum, которые присутствовали в 34 (5,1%) пробах биологического материала от телят в 22 (23,4%) обследованных хозяйствах. Установлено, что ооцисты в моноварианте у животных присутствовали редко (22,7%), чаще (77,3%) обнаруживались в ассоциациях с вирусами и бактериями во время вспышек вирусно-бактериальных инфекций. К инфицированию наиболее восприимчив молодняк до 30-дневного возраста. Новорожденные телята наиболее чувствительны к заражению ооцистами, а переболевшие животные становятся пожизненными источниками возбудителя для восприимчивых животных. Криптоспоридиоз является самостоятельным забо леванием и протекает независимо от наличия вирусов и бактерий в организме и не имеет с ними синергитического взаимодействия, однако наличие и размножение в организме животных этого возбудителя способствует усилению тяжести течения энтеритов у телят и приводит к трудностям в проведении лечебно-профилактических мероприятий. Присутствие криптоспоридий в организме животных необходимо учитывать при проведении комплексных противоэпизоотических мероприятий.</p></abstract><trans-abstract xml:lang="en"><p>The results of the study of specific features of distribution and clinical manifestation of bovine cryptosporidiosis in association with pathogens of viral and bacterial nature are presented. From 2014 to 2023, 666 samples of biomaterial (tracheal mucosa, lungs, mediastinal and mesenteric lymph nodes, contents of rennet and intestine) collected from fallen and forcefully killed calves under 6 months of age with signs of enteritis and respiratory diseases were examined. 94 farms of six regions, two territories of the Siberian region and the Republic of Kazakhstan were surveyed. The findings confirm the widespread prevalence of Cryptosporidium in calves. Cryptosporidium parvum oocysts were most frequently detected and were present in 34 (5.1%) samples of biological material from calves in 22 (23.4%) of the surveyed farms. It was found that oocysts were rarely (22.7%) present in monovariant in animals, more often (77.3%) they were found in associations with viruses and bacteria during outbreaks of viral-bacterial infections. Young animals under 30 days of age are most susceptible to infection. Newborn calves are most susceptible to infection with oocysts, and those animals that have had the disease become lifelong sources of the pathogen for susceptible animals. Cryptosporidiosis is an independent disease and runs independently of the presence of the viruses and bacteria in the body and has no synergistic interaction with them, but the presence and multiplication in the body of animals of this pathogen contributes to the severity of the course of enteritis in calves and leads to difficulties in the treatment and preventive measures. The presence of Cryptosporidium in animals should be taken into account when carrying out complex anti-epizootic measures.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>крупный рогатый скот</kwd><kwd>телята</kwd><kwd>криптоспоридии</kwd><kwd>энтериты</kwd><kwd>ассоциации возбудителей</kwd><kwd>вирусы</kwd><kwd>бактерии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cattle</kwd><kwd>calves</kwd><kwd>cryptosporidium</kwd><kwd>enteritis</kwd><kwd>pathogen associations</kwd><kwd>viruses</kwd><kwd>bacteria</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">Колесников В.И., Четвертнов В.И. Сравнительная эффективность препаратов Галакур и Параформ 70 для терапии телят при криптоспоридиозе // Международный вестник ветеринарии. 2021. № 3. С. 79–83.</mixed-citation><mixed-citation xml:lang="en">Kolesnikov V.I., Chetvertnov V.I. 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