<?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>S2448-61322018000300094</article-id>
<article-id pub-id-type="doi">10.21929/abavet2018.83.7</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Estrus synchronization in ewes with PGF2&#945; and biostimulated with &#8220;male effect&#8221;]]></article-title>
<article-title xml:lang="es"><![CDATA[Sincronización del estro en ovejas con PGF2&#945; y bioestimuladas con &#8220;efecto macho&#8221;]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cadena-Villegas]]></surname>
<given-names><![CDATA[Said]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arévalo-Díaz]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallegos-Sánchez]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Marín]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Autonomous University Chapingo Department of Zootechnics ]]></institution>
<addr-line><![CDATA[ Texcoco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Postgraduate School Campus Montecillo ]]></institution>
<addr-line><![CDATA[ Montecillo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of Guanajuato Campus Irapuato-Salamanca Department of Veterinary and Zootechnics]]></institution>
<addr-line><![CDATA[ ]]></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>8</volume>
<numero>3</numero>
<fpage>94</fpage>
<lpage>105</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322018000300094&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322018000300094&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322018000300094&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Biostimulation with "male effect" (ME) and its response in estrus synchronization in wool sheep was evaluated with a protocol based on the administration of prostaglandin (PGF2&#945;) in the reproductive season. 24 Suffolk and 29 Rideau Arcott adult sheeps were used, which were randomized to one of two treatments (T): T1, n = 25: control sheep, synchronized with two applications of PGF2&#945; with a seven-day interval, and T2, n = 28: similar to T1, but with the difference that the ram was introduced on day four, after the first administration of PGF2&#945;, to perform ME. The estrus response, estrus onset, gestation and calving percentage, fertility, prolificacy, and fecundity were evaluated. There were no differences (P&gt; 0.05) between the response to estrus, the percentages of gestation and calving, and fertility, among treatments. The onset of estrus, prolificacy and fecundity were higher (P &lt;0.05) in the sheep of T2 with respect to the females of T1. We concluded that biostimulation with "male effect" in sheep synchronized with a protocol based on prostaglandins improves estrus onset, prolificacy, and fecundity in wool breeds.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se evaluó la bioestimulación con &#8220;efecto macho&#8221; (EM) y su respuesta en la sincronización del estro en ovejas de lana con un protocolo basado en aplicación de prostaglandinas (PGF2&#945;) en época reproductiva. Se utilizaron 24 ovejas adultas Suffolk y 29 Rideau Arcott, las cuales se distribuyeron al azar a uno de dos tratamientos (T): T1, n= 25: ovejas testigo, sincronizadas con dos aplicaciones de PGF2&#945; con intervalo de siete días, y T2, n= 28: similar al T1, pero con la diferencia de que el carnero se introdujo en el día cuatro, de la primera aplicación de PGF2&#945;, para realizar el EM. Se evaluó la respuesta al estro, inicio del estro, porcentaje de gestación, porcentaje de parición, fertilidad, prolificidad y fecundidad. No se encontraron diferencias (P &gt;0.05) en la respuesta al estro, los porcentajes de gestación y parición, y la fertilidad entre tratamientos. El inicio del estro, la prolificidad y la fecundidad fueron mayores (P &lt;0.05) en las ovejas del T2 con respecto a las hembras del T1. Se concluye que la bioestimulación con &#8220;efecto macho&#8221; en ovejas sincronizadas con un protocolo basado en prostaglandinas mejora el inicio del estro, la prolificidad y la fecundidad en razas de lana.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Prolificity]]></kwd>
<kwd lng="en"><![CDATA[fecundity]]></kwd>
<kwd lng="en"><![CDATA[fertility]]></kwd>
<kwd lng="en"><![CDATA[sheep production]]></kwd>
<kwd lng="en"><![CDATA[Ovis aries]]></kwd>
<kwd lng="es"><![CDATA[Prolificidad]]></kwd>
<kwd lng="es"><![CDATA[fecundidad]]></kwd>
<kwd lng="es"><![CDATA[fertilidad]]></kwd>
<kwd lng="es"><![CDATA[ovinocultura]]></kwd>
<kwd lng="es"><![CDATA[Ovis aries]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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