<?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>2007-9028</journal-id>
<journal-title><![CDATA[Ecosistemas y recursos agropecuarios]]></journal-title>
<abbrev-journal-title><![CDATA[Ecosistemas y recur. agropecuarios]]></abbrev-journal-title>
<issn>2007-9028</issn>
<publisher>
<publisher-name><![CDATA[Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-90282017000300563</article-id>
<article-id pub-id-type="doi">10.19136/era.a4n12.1288</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Detección de Neospora caninum por PCR anidada en leucocitos de bovinos productores de leche]]></article-title>
<article-title xml:lang="en"><![CDATA[Detection of Neospora Caninum by PCR nested in leukocytes from dairy bovines]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Sandoval]]></surname>
<given-names><![CDATA[Raúl Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Martínez]]></surname>
<given-names><![CDATA[Jesús Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Martínez]]></surname>
<given-names><![CDATA[Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa-Ayala]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Rubio]]></surname>
<given-names><![CDATA[Virginia Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ojeda-Carrasco]]></surname>
<given-names><![CDATA[Juan José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México Centro Universitario Amecameca ]]></institution>
<addr-line><![CDATA[Amecameca Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,INIFAP Centro Nacional de Investigación Disciplinaria en Parasitología Veterinaria ]]></institution>
<addr-line><![CDATA[Jiutepec Morelos]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>4</volume>
<numero>12</numero>
<fpage>563</fpage>
<lpage>570</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282017000300563&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282017000300563&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282017000300563&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se evaluó la seropositividad a Neospora caninum mediante ensayo inmunoenzimático (ELISA) y se detectó el ADN por PCR anidada con iniciadores externos Np 21-4 e internos Np 9-10 en leucocitos de vacas del sistema de producción de leche en pequeña escala en Amecameca, Estado de México. Se estudió un hato con 34 hembras adultas realizando el seguimiento con muéstreos sanguíneos durante cinco meses; también, se analizaron dos muestras de encéfalo de fetos abortados y se constató la secuencia de los amplicones en el Genbank. La concordancia entre técnicas fue comparada mediante la prueba Kappa. La seroprevalencia por ELISA fue de 85.3 %; y se detectó ADN del parásito en 89.4 % de las vacas. Una muestra de encéfalo fue positiva. La similitud de los amplicones osciló entre 91 y 96 %, el índice Kappa fue de 0.41. El empleo de leucocitos aumenta la probabilidad de amplificar ADN de N. caninum.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Seropositivity to Neospora caninum was evaluated by Enzyme-Linked ImmunoSorbent Assay (ELISA) and the DNA was detected by PCR nested with external initiators Np 21-4 and internal Np 9-10 in cow leukocytes from the small-scale milk production system in Amecameca, State of México. A herd with 34 adult females was studied, performing follow-up with blood sampling for five months. Also, two brain samples from aborted fetuses were analyzed and the sequence of the amplicons in the Genbank was verified. Consistency between techniques was compared using the Kappa test. ELISA seroprevalence was 85.3 %; and DNA of the parasite was detected in 89.4 % of the cows. A brain sample was positive. The similarity of the amplicons ranged from 91 to 96 %, the Kappa Índex was 0.41. The use of leukocytes increases the likelihood of amplifying N. caninum DNA.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Detección]]></kwd>
<kwd lng="es"><![CDATA[leucocitos]]></kwd>
<kwd lng="es"><![CDATA[Neospora caninum]]></kwd>
<kwd lng="es"><![CDATA[PCR]]></kwd>
<kwd lng="en"><![CDATA[Detection]]></kwd>
<kwd lng="en"><![CDATA[leukocytes]]></kwd>
<kwd lng="en"><![CDATA[Neospora caninum]]></kwd>
<kwd lng="en"><![CDATA[PCR]]></kwd>
</kwd-group>
</article-meta>
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