<?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>S2007-11242022000401055</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v13i4.5217</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comportamiento productivo y valor nutricional del pasto Pennisetum purpureum cv Cuba CT-115, a diferente edad de rebrote]]></article-title>
<article-title xml:lang="en"><![CDATA[Productive performance and nutritional value of Pennisetum purpureum cv. Cuba CT-115 grass at different regrowth ages]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dios-León]]></surname>
<given-names><![CDATA[Gloria Esperanza de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Juárez]]></surname>
<given-names><![CDATA[Jesús Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Izquierdo-Reyes]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Joaquín-Torres]]></surname>
<given-names><![CDATA[Bertín Maurilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meléndez-Nava]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Campus Tabasco ]]></institution>
<addr-line><![CDATA[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Popular de la Chontalpa Departamento de Zootecnia ]]></institution>
<addr-line><![CDATA[Cárdenas Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>13</volume>
<numero>4</numero>
<fpage>1055</fpage>
<lpage>1066</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242022000401055&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242022000401055&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242022000401055&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se evaluó el rendimiento de forraje y valor nutritivo del pasto Pennisetum purpureum cv Cuba CT-115, en cinco edades de rebrote: 30, 45, 60, 75 y 90 días, en tres épocas del año: seca, lluvias y nortes. Se utilizó un diseño de bloques completos al azar con medidas repetidas, con cuatro repeticiones por tratamiento. La mayor altura se registró a partir de los 75 días, en todas las épocas, con valores de 127.1, 151.6 y 137.0 cm, en seca, lluvias y nortes, respectivamente. El rendimiento más alto de forraje (27.0 t MS ha-1) se obtuvo a los 90 días en la época de lluvias, con una tasa de crecimiento (TC) de 300.2 kg MS ha-1 día-1, 7.3 % de proteína cruda (PC) y 37.0 % de degradación in situ de la materia seca (DIMS). La relación hoja:tallo fue mayor a los 30 días de rebrote, con un valor promedio de 1.65. El contenido de PC fue mayor en la época de nortes a 30 y 45 días, con un valor promedio de 15.6 %. La DIMS fue más alta a 30, 45 y 60 días, con valores promedio de 49.3, 51.8 y 48.2 %, respectivamente. Con base al rendimiento de forraje, se recomienda el uso del pasto Cuba CT-115 para corte a 90 días de rebrote durante la época de lluvias, mientras que, por su calidad nutricional, se recomienda su uso para pastoreo a 60 días de crecimiento después del corte.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Grass species forage yield and nutritional value directly affect livestock production performance. They also vary in response to regional climate and soil conditions. Forage yield and nutritional value in Pennisetum purpureum cv. Cuba CT-115 were evaluated at five regrowth ages (30, 45, 60, 75 and 90 d) in three seasons (dry, rainy and northwinds). A completely randomized block design with repeated measures was used, with four replicates per treatment. In all three seasons, maximum height was reached at 75 d: 127.1 cm in the dry season, 151.6 cm in the rainy season and 137.0 cm the northwind season. Forage yield was highest (27.0 t DM ha-1) at 90 d in the rainy season, with a growth rate of 300.2 kg DM ha-1 d-1, 7.3% crude protein and 37.0% in situ digestibility of dry matter. The leaf:stem ratio was highest at 30 d in all seasons, with a 1.65 average value. Crude protein content was highest in the northwind season at 30 and 45 d, with a 15.6 % average value. In all three seasons, digestibility was highest at 30 (mean= 49.3 %), 45 (51.8 %) and 60 d (48.2 %). Based on forage yield, use of P. purpureum cv. Cuba CT-115 grass for open grazing is recommended for cutting at 90 days&#8217; regrowth and based on its nutritional quality is recommended for grazing at 60 days&#8217; regrowth, both during the rainy season.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Pennisetum purpureum]]></kwd>
<kwd lng="es"><![CDATA[Rendimiento de forraje]]></kwd>
<kwd lng="es"><![CDATA[Tasa de crecimiento]]></kwd>
<kwd lng="es"><![CDATA[Calidad]]></kwd>
<kwd lng="en"><![CDATA[Pennisetum purpureum]]></kwd>
<kwd lng="en"><![CDATA[Forage yield]]></kwd>
<kwd lng="en"><![CDATA[Growth rate]]></kwd>
<kwd lng="en"><![CDATA[Quality]]></kwd>
</kwd-group>
</article-meta>
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