<?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>2448-6760</journal-id>
<journal-title><![CDATA[Veterinaria México OA]]></journal-title>
<abbrev-journal-title><![CDATA[Veterinaria México OA]]></abbrev-journal-title>
<issn>2448-6760</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Medicina Veterinaria y Zootecnia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-67602016000100003</article-id>
<article-id pub-id-type="doi">10.21753/vmoa.3.1.360</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Ovulation rate, prolificacy and pregnancy rate in goats treated with oral glycerol]]></article-title>
<article-title xml:lang="es"><![CDATA[Tasa de ovulación, prolificidad y tasa de gestación en cabras tratadas con glicerol por vía oral]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar]]></surname>
<given-names><![CDATA[Ubaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Cerón]]></surname>
<given-names><![CDATA[Joel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez]]></surname>
<given-names><![CDATA[Yesmín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[Carlos G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Veterinaria y Zootecnia Departamento de Reproducción]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Veterinaria y Zootecnia Centro de Enseñanza, Investigación y Extensión en el Altiplano]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<volume>3</volume>
<numero>1</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-67602016000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-67602016000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-67602016000100003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This study tested whether the oral administration of glycerol at the time of progestin removal and in the first 6 days of the estrous cycle increased the ovulation rate, prolificacy, and pregnancy rate in goats. Intravaginal sponges impregnated with fluorogestone acetate were inserted into 129 goats for 12 days; upon sponge removal, goats were randomly assigned to one of the two following treatment groups: the glycerol group (n = 65), which received an oral drench of 100 mL of glycerol upon sponge removal and was repeated on days 0, 2, 4, and 6 following estrus (estrus = day 0), and the control group (n = 64), which did not receive glycerol. The goats in estrus were mated, and their ovulation rate was determined by ultrasonography between days 8 and 12 of the estrous cycle. Pregnancy was diagnosed by ultrasonography on day 40, and the prolificacy was determined at birth. In 6 goats treated with glycerol and 5 controls, their insulin concentrations at 0, 2, 4, 8, and 12 h after the glycerol drench were determined by radioimmunoassay. The proportion of goats with multiple ovulations (glycerol = 71 vs control = 64) and the proportion of goats with multiple births (glycerol = 52 vs control = 56) were similar (P &gt; 0.05) between treatments. Likewise, the pregnancy rate was similar (P &gt; 0.05) between treatments (glycerol = 88 vs control = 85%). The insulin concentrations tended to be higher in goats treated with glycerol (P = 0.08). In conclusion, an oral drench of 100 mL of glycerol at the time of progestin withdrawal and in the first 6 days of the estrous cycle did not increase the ovulation rate, prolificacy, or pregnancy rate in goats.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se probó si la administración oral de glicerol, al momento de retirar el progestágeno y durante los primeros seis días del ciclo estral, incrementaba la tasa de ovulación, la prolificidad y la tasa de gestación en cabras. Se insertaron esponjas intravaginales con acetato de fluorogestona a 129 cabras por 12 días; al retirar la esponja se asignaron al azar a uno de dos tratamientos: glicerol (n = 65) recibió 100 mL de glicerol por vía oral, mismo tratamiento que se repitió los días 0, 2, 4 y 6 (estro = día 0), y testigo (n = 64), el cual no recibió glicerol. Las cabras en estro recibieron monta. Entre los días 8 y 12 del ciclo estral, se determinó la tasa de ovulación mediante ecografía. El diagnóstico de gestación se realizó mediante una ecografía el día 40 y la prolificidad se determinó al parto. En seis cabras tratadas con glicerol y cinco testigos, se determinaron las concentraciones de insulina mediante radioinmunoensayo a las 0, 2, 4, 8 y 12 h después de la ingestión de glicerol. La proporción de cabras con ovulación múltiple (glicerol = 71 vs testigo = 64) y la proporción de cabras con parto múltiple (glicerol = 52 vs testigo = 56) fueron similares (P &gt; 0.05) entre los tratamientos. De manera similar, la tasa de gestación fue igual (P &gt; 0.05) entre los tratamientos (glicerol = 88 vs testigo = 85%). Las concentraciones de insulina tendieron a ser mayores en las cabras tratadas con glicerol (P = 0.08). Se concluye que la administración oral de 100 mL de glicerol al momento de retirar el progestágeno y durante los primeros seis días del ciclo estral, no incrementó la tasa de ovulación, la prolificidad, ni la tasa de gestación en cabras.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ovulation rate]]></kwd>
<kwd lng="en"><![CDATA[Prolificacy]]></kwd>
<kwd lng="en"><![CDATA[Glycerol]]></kwd>
<kwd lng="en"><![CDATA[Insulin]]></kwd>
<kwd lng="en"><![CDATA[Goats]]></kwd>
<kwd lng="es"><![CDATA[Tasa de ovulación]]></kwd>
<kwd lng="es"><![CDATA[Prolificidad]]></kwd>
<kwd lng="es"><![CDATA[Glicerol]]></kwd>
<kwd lng="es"><![CDATA[Insulina]]></kwd>
<kwd lng="es"><![CDATA[Cabras]]></kwd>
</kwd-group>
</article-meta>
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