<?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>S2448-61322019000100105</article-id>
<article-id pub-id-type="doi">10.21929/abavet2019.93</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tasa de concepción en ovejas tratadas con selenio orgánico]]></article-title>
<article-title xml:lang="en"><![CDATA[Conception rates in ewes treated with organic selenium]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabrera-Mora]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Jiménez]]></surname>
<given-names><![CDATA[Leonor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Haro]]></surname>
<given-names><![CDATA[Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Osorio-Ávalos]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Campus Montecillo ]]></institution>
<addr-line><![CDATA[ Texcoco]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>9</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322019000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322019000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322019000100105&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El selenio es un mineral que contribuye en la reproducción de los animales. El objetivo del trabajo fue evaluar la tasa de concepción y concentración de progesterona en ovejas locales, durante la época reproductiva y mediante la ingesta de selenio orgánico. Se utilizaron 27 ovejas, multíparas y con condición corporal de 2.5; se diseñaron dos grupos al azar: 11 ovejas sin selenio y 16 con selenio. Se sincronizó estro con esponjas intravaginales impregnadas con 20 mg de cronolona micronizada (acetato de fluorogestona) por 14 días y aplicación de 400 UI de eCG al retirar las esponjas. La inseminación artificial (IA) se realizó a tiempo fijo (55 horas después de retirar las esponjas), la aplicación oral de 0.3 ppm día-1 de selenio orgánico se realizó siete días consecutivos antes de la IA. La concentración de progesterona se evaluó en muestras sanguíneas obtenidas en un período correspondiente a un ciclo estral de la oveja (21 días) y el diagnóstico de gestación se realizó 35 días después de la IA. Las concentraciones de progesterona de ovejas testigo (5.28 ng mL-1) y tratamiento con selenio orgánico (6.58 ng mL-1) no fueron diferentes ni entre grupos ni entre días (p &#8805; 0.05); aunque en ambos grupos la máxima concentración de progesterona se registró el día 14 después de la IA lo que coincide con un cuerpo lúteo de vida normal. La tasa de concepción de testigo (81.8 %) y grupo con selenio orgánico (75 %) tampoco fue diferente (p &#8805; 0.05). En base a los resultados se concluye que el selenio orgánico aplicado por siete días antes de la IA no influyó en concentración de progesterona y tasa de concepción en ovejas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Selenium is a mineral that contributes to animal reproduction. The objective of this work was to evaluate conception rate and progesterone concentration in landrace ewes, during the reproductive season by organic selenium intake. 27 multiparous ewes were used with a body condition of 2.5; two groups were randomly designed: 11 ewes without selenium and 16 with selenium. Estrus was synchronized with intravaginal sponges containing fluorogestone acetate for 14 days, at the time of sponges removal, application of 400 UI of eCG was made. Artificial insemination (IA) was developed at a fixed time (55 hours after removal of sponges), consecutive application of 0.3 ppm day-1 of oral organic selenium was started seven days before IA. Progesterone concentration was evaluated in blood samples obtained along one estrus cycle (21 days), gestation diagnosis was developed at 35 days after the IA. Progesterone concentrations, between without selenium (5.28 ng mL-1) and treatment with organic selenium (6.58 ng mL-1), were not different between groups or between days (p &#8805; 0.05), although in both groups the maximum progesterone concentration was observed on day 14 after the IA, in coincidence with a normal corpus luteum time. Also, conception rate was not different (p &#8805; 0.05); in the group without selenium 81.8 % and with organic selenium 75 %. Based on the results, it is concluded that organic selenium application for seven days before IA did not influence progesterone concentration and conception rate in ewes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Selenio]]></kwd>
<kwd lng="es"><![CDATA[época reproductiva]]></kwd>
<kwd lng="es"><![CDATA[progesterona]]></kwd>
<kwd lng="es"><![CDATA[inseminación artificial]]></kwd>
<kwd lng="en"><![CDATA[Selenium]]></kwd>
<kwd lng="en"><![CDATA[reproductive season]]></kwd>
<kwd lng="en"><![CDATA[progesterone]]></kwd>
<kwd lng="en"><![CDATA[artificial insemination]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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