<?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>S2007-11242024000100069</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v15i1.6341</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto de aceites esenciales sobre la producción de metano en la fermentación in vitro de pasto llanero]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of essential oils on the production of methane in the in vitro fermentation of Koronivia grass]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Santillán]]></surname>
<given-names><![CDATA[Paulino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Saavedra-Jiménez]]></surname>
<given-names><![CDATA[Luis Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Salado]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Pérez]]></surname>
<given-names><![CDATA[Jerónimo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayala-Monter]]></surname>
<given-names><![CDATA[Marco Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<volume>15</volume>
<numero>1</numero>
<fpage>69</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242024000100069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242024000100069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242024000100069&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo fue evaluar el uso creciente de aceite de ajo, ajonjolí y canela en la producción de CH4 in vitro de pasto llanero con 60 días de rebrote. Se evaluó la adición de 0, 2.5, 5.0, 7.5 y 10 % de aceite de ajo, canela o ajonjolí en una fermentación in vitro usando como sustrato pasto llanero con 60 días de rebrote. Las variables evaluadas fueron producción acumulada de CH4 a las 12, 24, 36, 48 y 72 h, degradación de materia seca (DMS) y los estimadores de cinética de producción de CH4 (A= potencial de producción de CH4, b= tasa constante de producción de CH4 y k= tiempo lag). La producción de CH4 y DMS se analizaron con un diseño experimental completamente al azar y contraste ortogonal. Los estimadores fueron un análisis descriptivo. El aumento de aceite de ajo y canela redujo linealmente la producción de CH4 a las 12, 24, 36, 48 y 72 h. La DMS disminuyó linealmente con cualquiera de los tres aceites (P&lt;0.05). El mayor valor de A fue con 2.5 % de aceite de ajo, el mayor valor de k y b fue con 10 % de aceite de canela. En conclusión, el uso de aceites de ajo y canela mostraron una disminución lineal de la producción de CH4 y DMS de pasto llanero en condiciones in vitro.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective was to evaluate the increasing use of garlic, sesame, and cinnamon oil in the production of CH4 in 60 d in vitro regrowth of Koronivia grass. The addition of 0, 2.5, 5.0, 5.0, 7.5, and 10 % garlic, cinnamon, or sesame oil was evaluated in an in vitro fermentation using a 60-d regrowth of Koronivia grass as substrate. The variables evaluated were cumulative CH4 production at 12, 24, 36, 36, 48, and 72 h; dry matter degradation (DMD), and CH4 production kinetics estimators (A= CH4 production potential, b= CH4 production rate constant, and k= lag time). The CH4 production and the DMD were analyzed with a completely randomized experimental design and orthogonal contrast. The estimators were subjected to a descriptive analysis. An increase of garlic oil and cinnamon linearly reduced CH4 production at 12, 24, 36, 48, and 72 h. The DMD decreased linearly with the use of any of the three oils (P&lt;0.05). The highest value of A was obtained with 2.5 % garlic oil, and the highest value of k and b, with 10 % cinnamon oil. In conclusion, the use of garlic and cinnamon oils resulted in a linear decrease of Koronivia grass CH4 and Koronivia grass DMD under in vitro conditions.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Aceite de ajo]]></kwd>
<kwd lng="es"><![CDATA[Aceite de canela]]></kwd>
<kwd lng="es"><![CDATA[Aceite de ajonjolí]]></kwd>
<kwd lng="es"><![CDATA[Degradación de materia seca]]></kwd>
<kwd lng="es"><![CDATA[in vitro]]></kwd>
<kwd lng="en"><![CDATA[Garlic oil]]></kwd>
<kwd lng="en"><![CDATA[Cinnamon oil]]></kwd>
<kwd lng="en"><![CDATA[Sesame seed oil]]></kwd>
<kwd lng="en"><![CDATA[Dry matter degradation]]></kwd>
<kwd lng="en"><![CDATA[In vitro]]></kwd>
</kwd-group>
</article-meta>
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