<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342016000501117</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización del uso directo del rastrojo de maíz (Zea mays L.) por bovinos]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of the direct use of stover maize (Zea mays L.) for bovine]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arellano Vicente]]></surname>
<given-names><![CDATA[Isaí]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto Ruíz]]></surname>
<given-names><![CDATA[René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guevara Hernández]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Muro]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Sánchez]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ley de Coss]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chiapas Facultad de Ciencias Agronómicas ]]></institution>
<addr-line><![CDATA[Villaflores Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,INIFAP  ]]></institution>
<addr-line><![CDATA[ Aguascalientes]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Chiapas Facultad de Ciencias Agrícolas ]]></institution>
<addr-line><![CDATA[ Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>5</numero>
<fpage>1117</fpage>
<lpage>1129</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000501117&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000501117&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000501117&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La producción de maíz en la Frailesca, Chiapas está estrechamente relacionada con la ganadería a través de la práctica conocida localmente como rastrojeo, por lo que el objetivo de este trabajo realizado en el año 2015, fue caracterizar el uso directo del rastrojo de maíz por bovinos. Se evaluó la disponibilidad de los componentes del rastrojo de maíz, grado de utilización, carga animal, composición botánica y calidad de la dieta seleccionada y conducta animal. El diseño experimental fue completamente al azar y la comparación de medias se realizó a través de la prueba de Tukey. Se encontraron 14 componentes diferentes del rastrojeo. Los componentes de maíz en la dieta seleccionada fueron mayores (p&lt; 0.05) al final del rastrojeo, mientras que la participación de arvenses y pasto estrella africana fueron mayores (p&lt; 0.05) al inicio. Se observó un aumento en los valores de proteína en la dieta al final del rastrojeo, lo cual podría estar relacionada con un mayor aporte proporcional de los componentes del maíz a la dieta (62.35%) en relación al aporte de arvenses y gramíneas (37%). Se encontraron diferencias estadísticas (p&lt; 0.05) entre los tiempos evaluados en las actividades de rastrojeo (pastoreo), búsqueda de alimento y caminado, lo cual está relacionado con la adaptación que realizan los animales en su estrategia de pastoreo. La alta diversidad de componentes vegetales presentes en el rastrojo, le confiere importancia en términos de mejoras en la calidad de la dieta del animal, producto de una mayor posibilidad de selección de la misma.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ Abstract The maize production in the Frailesca, Chiapas is closely related to livestock through the practice known locally as &#8220;rastrojeo&#8221;, so the aim of this work in 2015 was to characterize the direct use of corn stover for cattle. The availability of components corn stover, utilization, stocking, botanical composition and quality of the selected animal behavior and diet was evaluated. The experimental design was completely random and mean comparison was performed using the Tukey test. The 14 different components rastrojeo was found. Corn components in the selected diet were higher (p&lt; 0.05) at the end of rastrojeo, while the share of African star grass and weeds were higher (p&lt; 0.05) at the start. An increase in protein levels in the diet at the end of rastrojeo was observed, which could be related to a greater proportional contribution of the components of corn to the diet (62.35%) compared to the contribution of weeds and grasses (37%). The statistical differences (p&lt; 0.05) between times evaluated rastrojeo activities (grazing), foraging and walking, which is related to the adjustment made by the animals in their grazing strategy found. The high diversity of plant components in stover, gives importance in terms of improvements in the quality of the animal's diet, product selection is a greater chance of it.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[disponibilidad]]></kwd>
<kwd lng="es"><![CDATA[calidad de la dieta]]></kwd>
<kwd lng="es"><![CDATA[composición de la dieta]]></kwd>
<kwd lng="es"><![CDATA[conducta animal]]></kwd>
<kwd lng="en"><![CDATA[availability]]></kwd>
<kwd lng="en"><![CDATA[animal behavior]]></kwd>
<kwd lng="en"><![CDATA[diet quality]]></kwd>
<kwd lng="en"><![CDATA[diet composition]]></kwd>
</kwd-group>
</article-meta>
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