<?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>S2007-90282018000300583</article-id>
<article-id pub-id-type="doi">10.19136/era.a5n15.1511</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Corn oil enhances progesterone and estradiol plasma levels in tropical hair sheep]]></article-title>
<article-title xml:lang="es"><![CDATA[El aceite de maíz incrementa los niveles séricos de progesterona y estradiol en ovejas de pelo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meza-Villalvazo]]></surname>
<given-names><![CDATA[Victor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Magaña-Sevilla]]></surname>
<given-names><![CDATA[Hector]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Marquez]]></surname>
<given-names><![CDATA[Crystelli Alicia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval-Castro]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trejo-Cordova]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Papaloapan Instituto de Biotecnología ]]></institution>
<addr-line><![CDATA[Tuxtepec Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico de Conkal  ]]></institution>
<addr-line><![CDATA[Conkal Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Yucatán Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[Mérida Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma Metropolitana Unidad Iztapalapa División de Ciencias Biológicas y de la Salud Departamento de Biología de la Reproducción]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>5</volume>
<numero>15</numero>
<fpage>583</fpage>
<lpage>589</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282018000300583&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282018000300583&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282018000300583&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The objective of the present study was to evaluate the inclusion of corn oil in the diet of sheep and its effect on serum levels of progesterone and estradiol, Twenty-one Pelibuey sheeps were divided into three treatments based on the level of oil included in the diet (T0 = 0, T3 = 3 and T6 = 6% respectively, on dry basis). Blood samples were obtained to determine hormones in serum. Cholesterol and progesterone were higher for T3 and T6 treatments (p &lt; 0.05) compared to T0. Insulin was higher (p &lt; 0.05) in the T6 treatment compared to treatments T3 and T0. At the time of ovulation, estradiol concentration was higher (p &lt; 0.05) for treatments T3 and T6 compared to T0. The inclusion of corn oil in the diet increases the levels of cholesterol, progesterone, estradiol and insulin in sheep hair.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El objetivo del presente estudio fue evaluar la inclusión del aceite de maíz en la dieta de ovejas y su efecto en los niveles séricos de progesterona y estradiol, Veintiún ovejas Pelibuey fueron divididas en tres tratamientos con base al nivel de aceite incluido en la dieta (T0 = 0, T3 = 3 y T6 = 6% respectivamente, en base seca). Se obtuvieron muestras sanguíneas para determinar hormonas en suero. El colesterol y la progesterona fueron mayores para los tratamientos T3 y T6 (p &lt; 0.05) en comparación con T0. La insulina fue mayor (p &lt; 0.05) en el tratamiento T6 en comparación con los tratamientos T3 y T0. En el momento de la ovulación, la concentración de estradiol fue mayor (p &lt; 0.05) para los tratamientos T3 y T6 en comparación con T0. La inclusión de aceite de maíz en la dieta incrementó los niveles de colesterol, progesterona, estradiol e insulina en ovejas de pelo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[cholesterol]]></kwd>
<kwd lng="en"><![CDATA[ovarian hormones]]></kwd>
<kwd lng="en"><![CDATA[insulin]]></kwd>
<kwd lng="en"><![CDATA[blood serum]]></kwd>
<kwd lng="es"><![CDATA[Colesterol]]></kwd>
<kwd lng="es"><![CDATA[hormonas ováricas]]></kwd>
<kwd lng="es"><![CDATA[insulina]]></kwd>
<kwd lng="es"><![CDATA[suero sanguíneo]]></kwd>
</kwd-group>
</article-meta>
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