<?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>0122-0268</journal-id>
<journal-title><![CDATA[Revista MVZ Córdoba]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.MVZ Cordoba]]></abbrev-journal-title>
<issn>0122-0268</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Córdoba - Facultad de Medicina Veterinaria y Zootecnia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-02682018000306860</article-id>
<article-id pub-id-type="doi">10.21897/rmvz.1374</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[In vitro fermentation of fibrous substrates by water buffalo ruminal cellulolytic bacteria consortia]]></article-title>
<article-title xml:lang="es"><![CDATA[Fermentación in vitro de consorcios bacterianos celulolíticos ruminales de búfalos de agua en sustratos fibrosos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Pérez]]></surname>
<given-names><![CDATA[Jerónimo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velez-Regino]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Santillán]]></surname>
<given-names><![CDATA[Paulino]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Salado]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-García]]></surname>
<given-names><![CDATA[Adelaido]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maldonado-Peralta]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[Cuajinicuilapa Guerreo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Cuerpo Académico UAGro-CA-183  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>23</volume>
<numero>3</numero>
<fpage>6860</fpage>
<lpage>6870</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-02682018000306860&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-02682018000306860&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-02682018000306860&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective.  To measure the in vitro fermentation variables of a cellulolytic bacteria consortium (CBC) isolated from a water buffalo rumen in coculture with total ruminal bacteria (TRB) on two fibrous substrates.  Materials and methods.  A CBC was isolated from the ruminal fluid of a female water buffalo in selective cellulolytic media. The experimental design was completely random with a 3x2 factorial arrangement; factors were treatments [TRB, CBC, and coculture (TRB + CBC)] and substrates (cobra grass and corn stover). Total gas and methane (CH4) production were measured at different time intervals. At 72 h, measurements were taken of pH, ammoniacal nitrogen (NH3-N), dry matter degradation (DMD), neutral detergent fiber degradation (NDFD) and total bacteria population.  Results.  Gas production with both substrates was highest (p&#8804;0.05) in the coculture at 3, 6 and 24 h. At 48 and 72 h, gas production in the cobra grass was highest (p&#8804;0.05) in the coculture. The coculture and TRB did not differ (p&gt;0.05) in terms of CH4, DMD and NDFD values at 48 and 72 h. With the cobra grass, NH3-N concentration was higher (p&#8804;0.05) in the coculture than in the TRB.  Conclusions.  The gas production and dry matter degradation values of the water buffalo rumen cellulolytic bacteria consortia indicate them to be a promising alternative for improving cobra grass structural carbohydrates degradation when in coculture with bovine ruminal bacteria.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo.  Determinar las variables fermentativas in vitro de un consorcio bacteriano celulolítico (CBC) aislado de una búfala de agua en cocultivo con bacterias ruminales totales (BRT) en sustratos fibrosos.  Materiales y métodos.  Un CBC se aisló de fluido ruminal de una búfala de agua en medios selectivos celulolíticos. El diseño experimental fue un diseño completamente al azar con arreglo factorial 3x2, los factores fueron tratamientos [BRT, CBC y un cocultivo (BRT + CBC)] y sustratos (pasto pangola y rastrojo de maíz). La producción de gas total y metano (CH4) se midieron a diferentes intervalos de tiempo. Además, se estimó pH, nitrógeno amoniacal (N-NH3), degradación de materia seca (DMS) y de fibra detergente neutro (DFDN), y la población de bacterias totales a 72 h de incubación.  Resultados.  El cocultivo produjo mayor (p&#8804;0.05) cantidad de gas a las 3, 6 y 24 h en ambos sustratos. A las 48 y 72 h, el cocultivo produjo mayor (p&#8804;0.05) gas en pasto cobra. El cocultivo y las BRT no presentaron diferencias (p&gt;0.05) en la producción de CH4 a 48 y 72 h, y en DMS y DFDN (p&gt;0.05). En el pasto cobra, la concentración de N-NH3 con el cocultivo fue mayor (p&#8804;0.05) que con BRT.  Conclusiones.  La producción de gas y degradación de materia seca de los consorcios bacterianos celulolíticos procedentes del rumen de una búfala de agua muestran que son una alternativa para mejorar la fermentación de carbohidratos estructurales del pasto cobra cuando se cocultivan con bacterias ruminales bovinas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ruminal bacteria]]></kwd>
<kwd lng="en"><![CDATA[Bubalus bubalis]]></kwd>
<kwd lng="en"><![CDATA[cellulosic coculture]]></kwd>
<kwd lng="en"><![CDATA[degradation (Source: DeCS)]]></kwd>
<kwd lng="es"><![CDATA[Bacterias ruminales]]></kwd>
<kwd lng="es"><![CDATA[Bubalus bubalis]]></kwd>
<kwd lng="es"><![CDATA[celulósicos]]></kwd>
<kwd lng="es"><![CDATA[cocultivo]]></kwd>
<kwd lng="es"><![CDATA[degradación (Fuente: DeCS)]]></kwd>
</kwd-group>
</article-meta>
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