<?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>2027-4297</journal-id>
<journal-title><![CDATA[Revista colombiana de ciencia animal recia]]></journal-title>
<abbrev-journal-title><![CDATA[rev. colombiana cienc. anim. Recia]]></abbrev-journal-title>
<issn>2027-4297</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Sucre, Facultad de Ciencias Agropecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2027-42972022000100009</article-id>
<article-id pub-id-type="doi">10.24188/recia.v14.n1.2022.886</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Effect of the diet on ruminal parameters and rumen microbiota: review]]></article-title>
<article-title xml:lang="es"><![CDATA[Efecto de la dieta sobre los parámetros ruminales y la microbiota ruminal: revisión]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[da Silva Macêdo]]></surname>
<given-names><![CDATA[Alberto Jefferson]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa Campos]]></surname>
<given-names><![CDATA[Amanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nascimento Coutinho]]></surname>
<given-names><![CDATA[Danielle]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soares Freitas]]></surname>
<given-names><![CDATA[Cássia Aparecida]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[dos Anjos]]></surname>
<given-names><![CDATA[Albert José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha Bezerra]]></surname>
<given-names><![CDATA[Leilson]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Viçosa  ]]></institution>
<addr-line><![CDATA[Viçosa ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Federal University of Campina Grande  ]]></institution>
<addr-line><![CDATA[Patos ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>14</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2027-42972022000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2027-42972022000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2027-42972022000100009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Ruminants are grazing animals with the ability to utilize forage sources for maintenance, growth, reproduction and production. They possess the rumen, a fermentation chamber composed of high diversity of microorganisms with the ability for degrading fiber or starch rich food and other types of non-fibrous carbohydrates, since they contain enzymes that act by breaking up bonds between molecules, making the substrate present in the food available. This study was developed aiming at reviewing the literature on how different diets affect ruminal parameters as well as the rumen ecology. Thus, the seeking for the understanding on how different diets can affect ruminal characteristics is found to be important, since it makes possible manipulating the diet up to a threshold, without causing any metabolic disturbance to animals and then maximizing the performance. This practice may contribute to minimize losses, maximize the food fermentation process and the absorption of fermentation products, which can be converted into flesh and milk. Findings from this study show that the microbial population and the final rumen fermentation products are directly affected by the animal diet. Therefore, manipulating diets may make possible maximizing the animal productive efficiency, as well as the optimization of the use of nutrients, to maximize the animal production.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Los rumiantes son animales de pastoreo con la capacidad de utilizar fuentes de forraje para mantenimiento, crecimiento, reproducción y producción. Poseen el rumen, una cámara de fermentación compuesta por alta diversidad de microorganismos con capacidad para degradar alimentos ricos en fibra o almidón y otro tipo de carbohidratos no fibrosos, ya que contienen enzimas que actúan rompiendo enlaces entre moléculas, haciendo presente el sustrato. en la comida disponible. Este estudio se desarrolló con el objetivo de revisar la literatura sobre cómo las diferentes dietas afectan los parámetros ruminales, así como la ecología del rumen. Por lo tanto, la búsqueda de la comprensión de cómo las diferentes dietas pueden afectar las características ruminales se considera importante, ya que permite manipular la dieta hasta un umbral, sin causar ninguna alteración metabólica a los animales y luego maximizar el rendimiento. Esta práctica puede contribuir a minimizar las pérdidas, maximizar el proceso de fermentación de los alimentos y la absorción de los productos de fermentación, que pueden convertirse en carne y leche. Los resultados de este estudio muestran que la población microbiana y los productos finales de la fermentación ruminal se ven directamente afectados por la dieta animal. La manipulación de las dietas puede permitir maximizar la eficiencia productiva, así como la optimización del uso de nutrientes, maximizar la producción animal.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ammonia]]></kwd>
<kwd lng="en"><![CDATA[microorganisms]]></kwd>
<kwd lng="en"><![CDATA[pH]]></kwd>
<kwd lng="en"><![CDATA[ruminal environment]]></kwd>
<kwd lng="en"><![CDATA[volatile fatty acids]]></kwd>
<kwd lng="es"><![CDATA[Amoníaco]]></kwd>
<kwd lng="es"><![CDATA[microorganismos]]></kwd>
<kwd lng="es"><![CDATA[pH]]></kwd>
<kwd lng="es"><![CDATA[ambiente ruminal]]></kwd>
<kwd lng="es"><![CDATA[ácidos grasos volátiles]]></kwd>
</kwd-group>
</article-meta>
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