<?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>S2448-61322019000100229</article-id>
<article-id pub-id-type="doi">10.21929/abavet2019.929</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[L-Arginina, Aspartato y Glutamato, y su relación con la reproducción de ovejas. Revisión]]></article-title>
<article-title xml:lang="en"><![CDATA[L-Arginine, Aspartate and Glutamate, and their relationship with the ewes&#8217; reproduction. Review.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarez-Cardona]]></surname>
<given-names><![CDATA[Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maki-Díaz]]></surname>
<given-names><![CDATA[Griselda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franco-Robles]]></surname>
<given-names><![CDATA[Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<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[Hernández-Marín]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guanajuato  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Arte y Empresa ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma Chapingo  ]]></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=S2448-61322019000100229&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322019000100229&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322019000100229&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la mayoría de los sistemas de producción pecuaria es importante optimizar la actividad reproductiva para aumentar la eficiencia productiva. Este indicador depende de factores ambientales como la nutrición, la cual regula el inicio de la pubertad, el desarrollo folicular ovárico, la calidad de los ovocitos y, como resultado, el desarrollo embrionario. La finalidad de las estrategias de nutrición animal es incrementar la eficiencia reproductiva, para obtener mejores ingresos económicos en la mayoría de los sistemas de producción pecuaria. Investigaciones recientes reportan que la suplementación dietética con aminoácidos específicos como arginina, glutamina, leucina, glicina y metionina tiene efectos beneficiosos sobre la supervivencia y el crecimiento embrionario y fetal mediante la regulación de la señalización clave y las rutas metabólicas. En los sistemas de producción ovina, suplementar por diferentes vías con aminoácidos neuroestimuladores como L-Arginina, aspartato y glutamato, mejora la eficiencia reproductiva en la hembra de una manera técnica y económica, en la cual se pretende eliminar la manipulación hormonal de los animales. Por lo anterior, el objetivo de la presente revisión de literatura es describir la función neuroestimuladora de los aminoácidos y conocer la respuesta neuroendócrina en el eje hipotálamo- hipófisis-ovarios en ovejas para mejorar las variables productivas y reproductivas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In most of livestock production systems, it is important to optimize reproductive activity to increase productive efficiency. This indicator depends on environmental factors such as nutrition, which regulates the onset of puberty, ovarian follicular development, oocyte quality and as a result, embryonic development. The purpose of animal nutrition strategies is to increase reproductive efficiency, to obtain better economic income in most of livestock production systems. Recent research reports that dietary supplementation with specific amino acids such as arginine, glutamine, leucine, glycine and methionine they have beneficial effects on survival and embryonic and fetal growth by regulating key signaling and metabolic pathways. In sheep production systems, supplementation with different routes with neurostimulatory amino acids such as L-Arginine, aspartate and glutamate, improves reproductive efficiency in females in a technical and economical way, with the aim of eliminating hormonal manipulation of the animals. Therefore, the objective of the present review of the literature is to describe the neurostimulatory function of amino acids and to know the neuroendocrine response in the hypothalamic-pituitary-ovarian axis in sheep to improve productive and reproductive variables.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[aminoácidos neuroestimuladores]]></kwd>
<kwd lng="es"><![CDATA[neuroendocrinología]]></kwd>
<kwd lng="es"><![CDATA[eficiencia reproductiva]]></kwd>
<kwd lng="es"><![CDATA[gonadotropinas]]></kwd>
<kwd lng="es"><![CDATA[ovinocultura]]></kwd>
<kwd lng="en"><![CDATA[neurostimulatory amino acids]]></kwd>
<kwd lng="en"><![CDATA[neuroendocrinology]]></kwd>
<kwd lng="en"><![CDATA[reproductive efficiency]]></kwd>
<kwd lng="en"><![CDATA[gonadotropins]]></kwd>
<kwd lng="en"><![CDATA[sheep production]]></kwd>
</kwd-group>
</article-meta>
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