<?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>2007-9028</journal-id>
<journal-title><![CDATA[Ecosistemas y recursos agropecuarios]]></journal-title>
<abbrev-journal-title><![CDATA[Ecosistemas y recur. agropecuarios]]></abbrev-journal-title>
<issn>2007-9028</issn>
<publisher>
<publisher-name><![CDATA[Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-90282017000100065</article-id>
<article-id pub-id-type="doi">10.19136/era.a4n10.883</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Nutritive value of Mulato grass under different grazing strategies]]></article-title>
<article-title xml:lang="es"><![CDATA[Valor nutritivo del pasto Mulato bajo diferentes estrategias de pastoreo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Hernández]]></surname>
<given-names><![CDATA[Aldenamar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Garay]]></surname>
<given-names><![CDATA[Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aranda-Ibañez]]></surname>
<given-names><![CDATA[Emilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chay-Canul]]></surname>
<given-names><![CDATA[Alfonso J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez-Quiroz]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Garcia]]></surname>
<given-names><![CDATA[Adelaido R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Vázquez]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Mpio de Centro Tabasco]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Campus Montecillo ]]></institution>
<addr-line><![CDATA[México-Texcoco Texcoco]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[Cuajinicuilapa Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<volume>4</volume>
<numero>10</numero>
<fpage>65</fpage>
<lpage>72</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282017000100065&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282017000100065&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282017000100065&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of this study was to evaluate the effect of grazing frequencies and intensities on herbage accumulation and nutritive value of Brachiaria hybrid 36061 cv. Mulato. Grazing frequencies of 14, 21 and 28 d and intensities of 9 to 11 and 13 to 15 cm were studied under a randomized block design in a 3x2 factorial arrangement with three replicates. Herbage accumulation, morphological components, in situ digestibility (DIGDM), crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) were evaluated. Annual yield distribution was 55, 28 and 16 % during the rainy, northern cold-front and dry seasons, in the first cycle, with the highest annual accumulation of 12 310 kg DM ha-1 obtained by grazing every 28 d. The highest DIGDM and PC were obtained by grazing at an intensity of 9 to 11 cm every 14 d in all seasons. However, grazing at an intensity of 13 to 15 cm every 28 d resulted in greater forage yield with a high concentration of NDF and ADF. In conclusion, the greatest herbage accumulation, NDF and ADF were recorded by grazing of 13 to 15 cm in height every 28 d in both cycles. DIGDM and CP had high values by grazing of 9 to 11 cm every 14 d.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo fue evaluar el efecto de las frecuencias e intensidades de pastoreo en la acumulación del forraje y valor nutritivo del pasto Brachiaria hibrido 36061 cv. Mulato. Se estudiaron las frecuencias de 14, 21 y 28 d y las intensidades de pastoreo de 9 a 11 y 13 a 15 cm, bajo un diseño de bloques al azar en arreglo factorial 3x2 con tres repeticiones. Se evaluó la acumulación de forraje, digestibilidad in situ (DIGMS), proteína cruda (PC), fibra detergente neutro (FDN) y fibra detergente ácido (FDA). La distribución anual del rendimiento fue 55, 28 y 16 % en las épocas de lluvias, nortes y seca, en el primer ciclo, con acumulación anual de 12 310 kg MS ha-1 al pastorear cada 28 d. La mayor DIGMS y PC se obtuvo al pastorear a una intensidad de 9 a 11 cm cada 14 d en todas las épocas. Sin embargo, al pastorear a una intensidad de 13 a 15 cm cada 28 d, se tuvo un mayor rendimiento de forraje con alta concentración de FDN y FDA. La mayor acumulación de forraje, FDN y FDA se tuvo al pastorear de 13 a 15 cm de altura cada 28 d en ambos ciclos. La DIGMS y PC presentaron valores altos al pastorear de 9 a 11 cm cada 14 d.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Brachiaria hibrido]]></kwd>
<kwd lng="en"><![CDATA[nutritional quality]]></kwd>
<kwd lng="en"><![CDATA[dry matter]]></kwd>
<kwd lng="es"><![CDATA[Brachiaria hibrido]]></kwd>
<kwd lng="es"><![CDATA[calidad nutritiva]]></kwd>
<kwd lng="es"><![CDATA[materia seca]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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