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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 custom-type="elpub" pub-id-type="custom">vniigis-255</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>ПАТОГЕНЕЗ, ПАТОЛОГИЯ И ЭКОНОМИЧЕСКИЙ УЩЕРБ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PATHOGENEZIS, PATHOLOGY AND ECONOMIC DAMAGE</subject></subj-group></article-categories><title-group><article-title>БИОЛОГИЧЕСКАЯ ЦЕННОСТЬ МЯСА ПРИ МОНО- И СМЕШАННЫХ ИНВАЗИЯХ</article-title><trans-title-group xml:lang="en"><trans-title>Biovailability of meat at mono- and mixed infections</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>МКРТЧЯН</surname><given-names>М. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Mkrtchyan</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат биологических наук</p></bio><bio xml:lang="en"><p>PhD in biological sciences</p></bio><email xlink:type="simple">info@izhgsha.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>МОВСЕСЯН</surname><given-names>С. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Movsesyan</surname><given-names>S. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>академик НАН Армении</p></bio><bio xml:lang="en"><p>Academician of NAN Armenia</p></bio><email xlink:type="simple">movsesyan@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ижевская государственная сельскохозяйственная академия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Izhevsk State Agricultural Academy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центр паразитологии Института проблем экологии и эволюции им. А.Н. Северцова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Centre of Parasitology of Institute for Problems of Ecology and Evolution RAS named after A.N. Severtsov</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>13</day><month>05</month><year>2016</year></pub-date><volume>0</volume><issue>3</issue><fpage>59</fpage><lpage>62</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; МКРТЧЯН М.Э., МОВСЕСЯН С.О., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">МКРТЧЯН М.Э., МОВСЕСЯН С.О.</copyright-holder><copyright-holder xml:lang="en">Mkrtchyan M.E., Movsesyan S.O.</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/255">https://vniigis.elpub.ru/jour/article/view/255</self-uri><abstract><p>Изучено влияние трематодозной инвазии на биологическую ценность мяса крупного рогатого скота. Исследования проводили на животных, зараженных по результатам копрологических исследований фасциолами, дикроцелиями и смешанной инвазией, вызванной фасциолами и дикроцелиями. Исследовали дельтовидную мышцу, длиннейшую мышцу спины, двуглавую мышцу бедра и сердечную мышцу. Установлено, что при трематодозах имеются изменения в химическом составе и физико-химических свойствах мяса, что приводит к ухудшению его качества и пищевой ценности. Особенно снижается содержание сухих веществ. При этом соотношение белка к жиру при гельминтозах достоверно ниже показателя контрольной группы, что особенно выражено при дикроцелиозной моноинвазии. Это может быть обусловлено интоксикацией организма животного и нарушением белкового и жирового обменов. Заражение трематодами влияет на химический состав и отражается на пищевой ценности мяса, что сопровождается снижением калорийности на 52,49-66,47 кДж, а также накоплением продуктов распада органических веществ, что подтверждается показателем рН и коэффициентом кислотность-окисляемость мяса.</p></abstract><trans-abstract xml:lang="en"><p>Based on above mentioned the authors set a goal to determine the bioavailabil-ity of meat in relation to its chemical composition depending on mono- and mixed infections in cattle. Studies are conducted on 20 animals that according to results of coprological research and helminthological autopsy by K.I. Skryabin method are divided into 4 test groups (5 heads in group). Animals in first group were infected with Fasciola sp., second group – Dicrocoelium sp., third group – association of Fasciola sp. and Dicrocoelium sp., fourth group – control group (intact group). Based on research results the authors came to conclusion that in case of trematodo-sis the changes of chemical composition and chemical physical properties of meat especially of beef registered by trematodosis may result in degeneration of quality and nutritional value of the most valuable food stuff. It is especially pointed out that the dry-substance content is reducing due to presence of mineral components. Moreover the protein fat ratio in helminthosis is less than the value of control group. This is especially expressed in dicrocoeliosis mono infection that may be caused by intoxication of animal and disturbance of proteins and fats metabolism. Infection with trematodes affect the chemical composition and reflect the nutrition-al value of meat that has been proven by reducing (Р &lt; 0,001) of food energy by 52,49–66,47 kJ as well as by accumulating of products of decomposition of organic compounds verified by рН value and coefficient of acidity – oxidation of meat.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>трематоды</kwd><kwd>мясо</kwd><kwd>химический состав</kwd><kwd>калорийность</kwd><kwd>крупный рогатый скот</kwd></kwd-group><kwd-group xml:lang="en"><kwd>trematodes</kwd><kwd>meat</kwd><kwd>chemical composition</kwd><kwd>food energy</kwd><kwd>cattle</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">Borovkov M.F., Frolov V.P., Serko S.A. 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