<?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>2448-6132</journal-id>
<journal-title><![CDATA[Abanico veterinario]]></journal-title>
<abbrev-journal-title><![CDATA[Abanico vet]]></abbrev-journal-title>
<issn>2448-6132</issn>
<publisher>
<publisher-name><![CDATA[Sergio Martínez González]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-61322020000100131</article-id>
<article-id pub-id-type="doi">10.21929/abavet2020.21</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Variación genética de Staphylococcus aureus causante de mastitis en vacas lecheras en Jalisco]]></article-title>
<article-title xml:lang="en"><![CDATA[Genetic variation of Staphylococcus aureus causing mastitis in dairy cows in Jalisco]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castañeda-Vázquez]]></surname>
<given-names><![CDATA[Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Padilla-Ramírez]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castañeda-Vázquez]]></surname>
<given-names><![CDATA[Martha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camacho-Palafox]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salas-Castañeda]]></surname>
<given-names><![CDATA[Erika]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guadalajara  ]]></institution>
<addr-line><![CDATA[ Guadalajara]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guadalajara  ]]></institution>
<addr-line><![CDATA[ Guadalajara]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>10</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322020000100131&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322020000100131&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322020000100131&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se determinó la variabilidad genética de las cepas de S. aureus aisladas de algunos casos de mastitis bovina. Se muestrearon 335 vacas de 27 establos en 10 municipios del estado de Jalisco. Las cepas de S. aureus se identificaron a partir de muestras de leche de cada glándula mamaria de cada vaca, las cuales se cultivaron en agar sangre y con base a las características del cultivo, las pruebas bioquímicas, y finalmente su confirmación molecular mediante PCR. La variación genética en las cepas identificadas se obtuvo con la técnica de electroforesis de campos pulsados. Las imágenes de los geles se analizaron mediante el software Bionumerics®. Se diagnosticó con la prueba de California un 2.26% de mastitis clínica y un 40.45% de mastitis subclínica. Se registró una frecuencia de aparición de S. aureus del 9.8% del total de las glándulas muestreadas. Se observó una variación genética de 14.9%. Las 32 cepas analizadas se agruparon en pulsotipos con 95% o más de similitud genética, resultando 12 pulsotipos. Se concluye que existe gran diversidad en la variabilidad genética de cepas de S. aureus de diferentes establos del estado de Jalisco y una gran similitud genética de cepas dentro de cada establo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The genetic variability of S. aureus strains isolated from some cases of bovine mastitis was determined. 335 cows from 27 stables were sampled in 10 municipalities in Jalisco state. S. aureus strains were identified from milk samples of each mammary gland of each cow, which were grown in blood agar and based on culture characteristics, biochemical tests, and finally their molecular confirmation by PCR. The genetic variation in the strains was identified by pulsed- field electrophoresis technique. The images of the gels were analyzed using the Bionumerics® software. 2.26% of clinical mastitis and 40.45% of subclinical mastitis were diagnosed with the California test. A frequency of appearance of S. aureus of 9.8% of the total sampled glands was recorded. A genetic variation of 14.9% was observed. The 32 strains analyzed were grouped into pulsotypes with 95% or more of genetic similarity, resulting in 12 pulsotypes. It is concluded that there is great diversity in the genetic variability of S. aureus strains from different stables in the state of Jalisco and a great genetic similarity of strains within each stable.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Staphylococcus aureus]]></kwd>
<kwd lng="es"><![CDATA[tipificación]]></kwd>
<kwd lng="es"><![CDATA[frecuencia de mastitis]]></kwd>
<kwd lng="es"><![CDATA[variación genética]]></kwd>
<kwd lng="es"><![CDATA[electroforesis de campos pulsados]]></kwd>
<kwd lng="en"><![CDATA[PFGE]]></kwd>
<kwd lng="en"><![CDATA[S. aureus]]></kwd>
<kwd lng="en"><![CDATA[typification]]></kwd>
<kwd lng="en"><![CDATA[mastitis` frequency]]></kwd>
<kwd lng="en"><![CDATA[genetic variation]]></kwd>
<kwd lng="en"><![CDATA[pulsed field electrophoresis.]]></kwd>
</kwd-group>
</article-meta>
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