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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">vniigis</journal-id><journal-title-group><journal-title xml:lang="ru">Российский паразитологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Parasitology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-8435</issn><issn pub-type="epub">2541-7843</issn><publisher><publisher-name>ВНИИП – филиал ФГБНУ ФНЦ ВИЭВ РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31016/1998-8435-2021-15-2-95-100</article-id><article-id custom-type="elpub" pub-id-type="custom">vniigis-768</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>ЛЕЧЕНИЕ И ПРОФИЛАКТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TREATMENT AND PREVENTION</subject></subj-group></article-categories><title-group><article-title>Влияние кокцидиостатика байкокса на течение кокцидиоза у цыплят-бройлеров</article-title><trans-title-group xml:lang="en"><trans-title>The influence of coccidiostatic Baycox on the course of coccidiosis in broiler chicken</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>Балицка-Рамиш</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Balicka-Ramisz</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра биотехнологии репродукции животных и гигиены окружающей среды, </p><p>г. Щецин</p></bio><bio xml:lang="en"><p>Department of Biotechnology of Animal Reproduction and Environment Hygiene,</p><p>Szczecin</p></bio><email xlink:type="simple">abalicka52@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>Лауранс</surname><given-names>Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Laurans</surname><given-names>L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ул. Aрконска, 4, 71-455, г. Щецин</p></bio><bio xml:lang="en"><p>4, Arkońska st., 71-455 Szczecin</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Батко</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Batko</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="en"><p>Elbląg</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рамиш</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ramisz</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Щецин</p></bio><bio xml:lang="en"><p>Student, </p><p>Szczecin</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Западно-Поморский технический университет</institution><country>Польша</country></aff><aff xml:lang="en"><institution>West Pomerania University of Technology</institution><country>Poland</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Клиника инфекционных заболеваний, гепатологии и трансплантации печени, Поморский медицинский университет</institution><country>Польша</country></aff><aff xml:lang="en"><institution>Clinic of Infectious Diseases, Hepatology and Liver Transplantation, Pomeranian Medical University</institution><country>Poland</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Средняя школа г. Эльблонг</institution><country>Польша</country></aff><aff xml:lang="en"><institution>Master of Biology High School Elbląg</institution><country>Poland</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Поморский медицинский университет</institution><country>Польша</country></aff><aff xml:lang="en"><institution>Pomeranian Medical University</institution><country>Poland</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>27</day><month>06</month><year>2021</year></pub-date><volume>15</volume><issue>2</issue><fpage>95</fpage><lpage>100</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Балицка-Рамиш А., Лауранс Л., Батко М., Рамиш А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Балицка-Рамиш А., Лауранс Л., Батко М., Рамиш А.</copyright-holder><copyright-holder xml:lang="en">Balicka-Ramisz A., Laurans L., Batko M., Ramisz A.</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://vniigis.elpub.ru/jour/article/view/768">https://vniigis.elpub.ru/jour/article/view/768</self-uri><abstract><sec><title>Цель исследований</title><p>Цель исследований: идентификация обнаруженных у цыплят-бройлеров кокцидий Eimeria spp. и оценка эффективности байкокса против кокцидий.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследовано 20 цыплят-бройлеров в возрасте 6 недель с фермы, неблагополучной по кокцидиозу. Цыплят разделили на две равные группы. Первая группа цыплят была контрольной и им препарат не задавали. Цыплятам второй группы задавали байкокс в течение 2 сут в концентрации 25 ч/млн вместе с водой. Пробы помета цыплят-бройлеров исследовали качественно методом флотации (Willis-Schlaaf), а затем количественно методом МакМастера. Цыплят умерщвляли через 6 сут после обработки, и их средние показатели общего поражения кишечника оценивали от 0 до 4 баллов по произвольной шкале, описанной Johnson and Reid (1970).</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. По результатам исследований выявлено шесть видов простейших рода Eimeria: E. acervulina, E. tenella, E. brunetti, E. maxima, E. mivati, E. necatrix, при этом виды E. necatrix и E. maxima были доминирующими. Виды E. mivati, E. acervulina (76,34%) локализовались в переднем сегменте кишечника, E. necatrix, E. maxima (83,34%) – в среднем сегменте тонкой кишки. E. brunetti обнаружены у 51,11% исследованных цыплят. Наиболее патогенный вид, E. tenella, паразитирующий в слепой кишке, обнаружен у 37,53% особей. Cредний показатель общего поражения кишечника в группе цыплят, получавшей байкокс, составил 0,33. Уровень загрязненности фекалий ооцистами после обработки во второй группе составил 1 (от 1 до 50 ооцист в 1 г фекалий), в контрольной группе – превышал 3, а средний показатель общего поражения кишечника – 2,5. </p></sec></abstract><trans-abstract xml:lang="en"><p>The purpose of the research is to identify species of Eimeria spp. in chicken broilers suspected to be infected with coccidia and to determine the effect of coccidiostatics in the course of coccidiosis.</p><sec><title>Materials and methods</title><p>Materials and methods. The study involved 20 six-week-old broiler chickens obtained from a farm heavily affected by coccidia (natural infection – a high oocyst incidence). Each group yielded 10 randomly picked chickens to be used in the experiment. The birds were divided into 2 groups 10 chickens each: control (I); Baycox-treated (II); Baycox was applied for 2 days in a concentration of 25 ppm in drinking water. Samples of broiler chickens’ droppings were tested qualitatively by the flotation method (Willis-Schlaaf) and then quantitatively by the McMaster technique. The chickens were killed 6 days post-treatment and their intestinal mean total lesion scores (MTLS) were graded 0 to 4 on an arbitrary scale described by Johnson and Reid (1970).</p></sec><sec><title>Results and discussion</title><p>Results and discussion. As a result of the research, six species of protozoa of the genus Eimeria were identified: E. acervulina, E. tenella, E. brunetti, E. maxima, E. mivati, E. necatrix, while E. necatrix and E. maxima were the dominant species. This proves the presence of such species as E. mivati, E. acervulina (76.34%) in the anterior segment of the intestine and E. necatrix, E. maxima (83.34%) – in the middle segment of the small intestine. Infections of E. brunetti broilers amounted to 51.11%. The most pathogenic species of E. tenella residing in the cecum was found in 37.53%. MTLS in the group of chickens that received Baycox was 0.33. The post-treatment oocyst indices in the second group amounted to 1 (1–50 oocysts in 1 g of faeces), in the control group MTLS was very high (2,5), the oocyst index exceeding 3. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>кокцидиоз</kwd><kwd>куры</kwd><kwd>борьба</kwd><kwd>профилактика</kwd><kwd>распространение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coccidiosis</kwd><kwd>chickens</kwd><kwd>control</kwd><kwd>prophylaxis</kwd><kwd>prevalence</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">Dagayeva А. B., Bakrieva R. М., Makhieva B. М. Eimeriosis in poultry: biology, spread and control measures in the Caspian Sea Region of the Russian Federation. Russian Journal of Parasitology. 2020; 14 (1): 29–34.</mixed-citation><mixed-citation xml:lang="en">Dagayeva А. B., Bakrieva R. М., Makhieva B. М. 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