<?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>S2448-61322021000100402</article-id>
<article-id pub-id-type="doi">10.21929/abavet2021.10</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio preliminar sobre la inhibición in vitro de nematodos gastrointestinales de ovinos con extractos acuosos de plantas forrajeras]]></article-title>
<article-title xml:lang="en"><![CDATA[Preliminary study on the in vitro inhibition of gastrointestinal nematodes from sheep with aqueous extracts of forage plants]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Antonio-Irineo]]></surname>
<given-names><![CDATA[Nora]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flota-Bañuelos]]></surname>
<given-names><![CDATA[Carolina]]></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 contrib-type="author">
<name>
<surname><![CDATA[Arreola-Enríquez]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fraire-Cordero]]></surname>
<given-names><![CDATA[Silvia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Champotón Campeche]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Champotón Campeche]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[Irapuato Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>11</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322021000100402&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322021000100402&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322021000100402&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: La alta presencia de nematodos gastrointestinales (ngi) en ovinos, es una causa de baja productividad. El objetivo fue determinar de forma preliminar la eficiencia in vitro de extractos acuosos de Gliricidia sepium, Leucaena leucocephala, Guazuma ulmifolia y Bursera simaruba a tres dosis (0.75, 1.00 y 1.25 mL), en la inhibición de la eclosión de huevos de ngi de ovinos. Se evaluó la eficiencia de inhibición en la eclosión de huevos (EIH), identificación y proporción de géneros de larvas. El análisis de datos se realizó mediante pruebas de Chi cuadrada y análisis de varianza. Los cuatro extractos obtuvieron una EIH del 50%, siendo similares (p &gt; 0.05) entre ellos. La dosis de 1.25 mL y las combinaciones de Leucaena leucocephala y Gliricidia sepium a dosis de 1.25 mL obtuvieron mayor eficiencia (68.0, 85.0 y 77.0%, respectivamente). Se identificaron cinco géneros de larvas (Haemonchus spp., Trichostrongylus spp., Oesophagostomum spp., Cooperia spp., y Nematodirus spp.), siendo el de mayor (p &#8804; 0.05) prevalencia Haemonchus spp. (58.0%). Los cuatro extractos acuosos exhibieron actividad ovicida de ngi. No obstante, la dosis de 1.25 mL y los extractos de Leucaena leucocephala, Gliricidia sepium a dosis de 1.25 mL fueron los más eficaces.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The presence of gastrointestinal nematodes (GIN) in sheep is a low productivity cause. This study aimed to determine the in vitro efficiency of Gliricidia sepium, Leucaena leucocephala, Guazuma ulmifolia, and Bursera simaruba aqueous extracts at three different doses (0.75, 1.00, and 1.25 mL), inhibiting the egg hatching of GIN from sheep. The inhibition efficiency in egg hatching (IEH), larval identification, and its genera proportion were evaluated. Analysis of data was performed using Chi-square tests and analysis of variance. The four extracts obtained an IEH of 50%, being similar (p &gt; 0.05) between them. The 1.25 mL dose and its combinations of Leucaena leucocephala and Gliricidia sepium at 1.25 mL dose obtained the highest efficiency (68.0, 85.0, and 77.0%, respectively). Five genera of larva were identified (Haemonchus spp, Trichostrongylus spp, Oesophagostomum spp, Cooperia spp, and Nematodirus spp). The highest prevalence (p &#8804; 0.05) was obtained by Haemonchus spp (58.0%). According to the results, the four aqueous extracts exhibited ovicidal activity (GIN). However, the 1.25 mL dose and the Leucaena leucocephala, Gliricidia sepium extracts at 1.25 mL doses were the most effective.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Parásitos gastrointestinales]]></kwd>
<kwd lng="es"><![CDATA[plantas antihelmínticas]]></kwd>
<kwd lng="es"><![CDATA[eclosión de huevos]]></kwd>
<kwd lng="en"><![CDATA[Gastrointestinal parasites]]></kwd>
<kwd lng="en"><![CDATA[anthelmintic plants]]></kwd>
<kwd lng="en"><![CDATA[egg hatching]]></kwd>
</kwd-group>
</article-meta>
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