<?xml version="1.0" encoding="ISO-8859-1"?><article 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">
<front>
<journal-meta>
<journal-id>0253-570X</journal-id>
<journal-title><![CDATA[Revista de Salud Animal]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Salud Anim.]]></abbrev-journal-title>
<issn>0253-570X</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Sanidad Agropecuaria]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0253-570X2019000100008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Morfología de Oesophagostomum columbianum (Strongylida: Chabertidae) por microscopía electrónica de barrido]]></article-title>
<article-title xml:lang="en"><![CDATA[Morphology of Oesophagostomum columbianum (Strongylida: Chabertidae) by scanning electron microscopy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivares-Orozco]]></surname>
<given-names><![CDATA[Javier Lorenzo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Diego]]></surname>
<given-names><![CDATA[Jesús Gregorio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Metropolitana  Departamento de Producción Agrícola y Animal]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2019</year>
</pub-date>
<volume>41</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0253-570X2019000100008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0253-570X2019000100008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0253-570X2019000100008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Con el objetivo de profundizar en la morfología del helminto Oesophagostomum columbianum, teniendo especial cuidado en la identificación de estructuras que permitieran realizar un diagnóstico certero de la especie, se llevó a cabo un estudio del parásito mediante microscopía electrónica de barrido. Se evidencian la cápsula bucal poco desarrollada con corona radiada de 22 hojas afiladas, seguida de la vesícula cefálica, las papilas exteriores simétricas anteriores, las alas laterales desarrolladas que se extienden a través de casi toda la extensión del cuerpo comenzando a partir del surco cervical, la bolsa copuladora bien desarrollada del macho, donde se destacan los radios que la sostienen, las dos espículas iguales y el cono genital; además, la vulva y el ano de la hembra. Estas observaciones contribuyen a un mejor diagnóstico de la especie estudiada.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In order to deepen in the morphology of the helminth Oesophagostomum columbianum, taking a special attention to the identification of structures that would allow an accurate diagnosis of the species; a parasite study was carried out by scanning electron microscopy (SEM). The following characteristics were evidenced: a underdeveloped oral capsule with a radiating crown of 22 sharp blades, followed by a cephalic vesicle; previous symmetrical outer papillae; developed lateral wings that extend through almost the entire length of the body, starting from the cervical groove; well-developed male coupling bag where the spokes that support it stand out; two equal spicules and genital cone; as well as vulva and anus of the female. These observations contribute to a better diagnosis of the species studied.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[microscopía electrónica]]></kwd>
<kwd lng="es"><![CDATA[morfología]]></kwd>
<kwd lng="es"><![CDATA[Oesophagostomum columbianum]]></kwd>
<kwd lng="en"><![CDATA[electronic microscopic]]></kwd>
<kwd lng="en"><![CDATA[morphology]]></kwd>
<kwd lng="en"><![CDATA[Oesophagostomum columbianum]]></kwd>
</kwd-group>
</article-meta>
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