<?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>2007-1124</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. pecuarias]]></abbrev-journal-title>
<issn>2007-1124</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11242023000200309</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v14i2.6093</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto de Xoconostle (Opuntia matudae Scheinvar) sobre la concentración de metano y las variables ruminales durante una fermentación in vitro de rastrojo de maíz]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of Xoconostle (Opuntia matudae Scheinvar) on methane concentration and ruminal variables during in vitro fermentation of corn stover]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espino-García]]></surname>
<given-names><![CDATA[José Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almaraz-Buendía]]></surname>
<given-names><![CDATA[Isaac]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peralta-Ortiz]]></surname>
<given-names><![CDATA[J. Jesús Germán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Munguía]]></surname>
<given-names><![CDATA[Abigail]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Soto]]></surname>
<given-names><![CDATA[Iridiam]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Montiel]]></surname>
<given-names><![CDATA[Lucio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos-Montiel]]></surname>
<given-names><![CDATA[Rafael Germán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Instituto de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Tulancingo de Bravo Hidalgo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Estudios Profesionales Zona Huasteca ]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de la Cañada  ]]></institution>
<addr-line><![CDATA[ Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>14</volume>
<numero>2</numero>
<fpage>309</fpage>
<lpage>325</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242023000200309&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242023000200309&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242023000200309&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se determinó el efecto de la adición de xoconostle en la fermentación ruminal in vitro de rastrojo de maíz con objeto de reducir la emisión de metano. Estudios previos han demostrado que el xoconostle contiene compuestos bioactivos con actividad antimicrobiana potencial que mejoran la fermentación ruminal. Se adicionaron el 0.0%, 2.0%, 4.0% y 6.0% de xoconostle. Se determinó la composición química de los sustratos, compuestos fenólicos, capacidad antioxidante, desaparición in vitro de la materia seca (DIVMS), la producción de ácidos grasos volátiles (AGV) y las variables de cinética de producción de gas. El volumen de metano se midió utilizando la técnica de captura de bióxido de carbono en solución de hidróxido de sodio. Con la adición del xoconostle se incrementó significativamente (P&lt;0.05) el contenido de proteína, extracto etéreo, fenoles totales y actividad antioxidante. La DIVMS también se incrementó con la adición del xoconostle. Respecto a la producción de ácido propiónico, ésta se incrementó significativamente (P&lt;0.05) con el 6.0 % de xoconostle. Los parámetros cinéticos obtenidos mediante el mejor ajuste de los datos experimentales mostraron una mayor tasa de digestión y menor producción de metano con la adición del 4.0 y 6.0 % de xoconostle. El uso de xoconostle como aditivo en dietas para rumiantes disminuye la producción de metano in vitro por lo que puede ser una alternativa para mitigar el incremento del efecto invernadero y beneficiar el cultivo de un fruto comercialmente no muy apreciado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The effect of the addition of xoconostle on in vitro ruminal fermentation of corn stover was determined in order to reduce methane emission. Previous studies have shown that xoconostle contains bioactive compounds with potential antimicrobial activity that enhance ruminal fermentation. Zero point zero percent, 2.0 %, 4.0 % and 6.0 % of xoconostle were added. The following were determined: chemical composition of the substrates, phenolic compounds, antioxidant capacity, in vitro disappearance of dry matter (IVDDM), the production of volatile fatty acids (VFAs) and the kinetic variables of gas production. The volume of methane was measured using the technique of capturing carbon dioxide in sodium hydroxide solution. The content of protein, ether extract, total phenols and antioxidant activity significantly increased (P&lt;0.05) with the addition of xoconostle. The IVDDM also increased with the addition of xoconostle. Regarding the production of propionic acid, it increased significantly (P&lt;0.05) with 6.0 % of xoconostle. The kinetic parameters obtained by the best fit of the experimental data showed a higher digestion rate and lower methane production with the addition of 4.0 and 6.0 % of xoconostle. The use of xoconostle as an additive in ruminant diets decreases methane production in vitro so it can be an alternative to mitigate the increase in the greenhouse effect and benefit the cultivation of a commercially not very appreciated fruit.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Xoconostle]]></kwd>
<kwd lng="es"><![CDATA[Rastrojo de maíz]]></kwd>
<kwd lng="es"><![CDATA[Fermentación ruminal]]></kwd>
<kwd lng="es"><![CDATA[Cambio climático]]></kwd>
<kwd lng="es"><![CDATA[Metano entérico]]></kwd>
<kwd lng="en"><![CDATA[Xoconostle]]></kwd>
<kwd lng="en"><![CDATA[Corn stover]]></kwd>
<kwd lng="en"><![CDATA[Ruminal fermentation]]></kwd>
<kwd lng="en"><![CDATA[Climate change]]></kwd>
<kwd lng="en"><![CDATA[Enteric methane]]></kwd>
</kwd-group>
</article-meta>
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