<?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>0864-0394</journal-id>
<journal-title><![CDATA[Pastos y Forrajes]]></journal-title>
<abbrev-journal-title><![CDATA[Pastos y Forrajes]]></abbrev-journal-title>
<issn>0864-0394</issn>
<publisher>
<publisher-name><![CDATA[Estación Experimental de Pastos y Forrajes Indio Hatuey]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0864-03942021000100007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Calidad nutricional de cinco gramíneas asociadas a Lotus uliginosus Schkuhr en el trópico alto de Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Nutritional quality of five grasses associated to Lotus uliginosus Schkuhr in the high tropic of Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Rincón]]></surname>
<given-names><![CDATA[Edwin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carulla-Fornaguera]]></surname>
<given-names><![CDATA[Juan Evangelista]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cárdenas-Rocha]]></surname>
<given-names><![CDATA[Edgar Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Colombiana de Investigación Agropecuaria, AGROSAVIA  ]]></institution>
<addr-line><![CDATA[Nariño ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Medicina Veterinaria y de Zootecnia. ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>44</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0864-03942021000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0864-03942021000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0864-03942021000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo:  Evaluar la calidad nutricional y la aceptabilidad de cinco gramíneas para clima frío: Holcus lanatus (L), Bromus catharticus (Vahl), Festuca arundinacea (Schreb), Cenchrus clandestinus Hochst. ex Chiov (naturalizado), Dactylis glomerata, asociadas con Lotus uliginosus (Schkuhr) en el trópico alto de Colombia.  Materiales y Métodos:  El trabajo se realizó en el Centro Agropecuario Marengo, de la Universidad Nacional de Colombia. Se utilizó un diseño de bloques al azar, con arreglo de franjas divididas. Se tuvo en cuenta la asociación y la edad de rebrote de 45 y 70 días. Se analizó la calidad nutricional de cada accesión: proteína bruta, fibra detergente neutro y fibra detergente ácido y digestibilidad in vitro de la materia seca. Luego de un año de establecimiento, se realizó una prueba de cafetería con novillas (300 kg de peso vivo) para calcular el índice de aceptabilidad relativa.  Resultados:  Se destacaron por su alto contenido de proteína bruta (p &lt; 0,01): C. clandestinum (naturalizado), D. glomerata y F. arundinacea asociadas, en comparación con las otras gramíneas y el testigo puro. En general, todas las muestras de L. uliginosus presentaron buen contenido nutricional, con altos valores de proteína (26,5 %) y digestibilidad in vitro de la materia seca (68,6 %), especialmente.  Conclusiones:  La asociación que presentó el mayor índice de aceptabilidad relativo fue C. clandestinus (naturalizado), siendo también la de mejor contenido de PB y digestibilidad. Se destacó F. arundinacea como el material promisorio para el establecimiento en asociaciones con leguminosas, debido a su alta calidad nutricional y compatibilidad con la leguminosa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective:  To evaluate the nutritional quality and acceptability of five cold-climate grasses: Holcus lanatus (L), Bromus catharticus (Vahl), Festuca arundinacea (Schreb), Cenchrus clandestinus Hochst. ex Chiov (naturalizado), Dactylis glomerata, associated with Lotus uliginosus (Schkuhr) in the high tropic of Colombia.  Materials and Methods:  The work was conducted in the Marengo Agricultural Center, of the National University of Colombia. A randomized block design was used, with split-plot arrangement. The association and regrowth age of 45 and 70 days was taken into consideration. The nutritional quality of each accession was analyzed: crude protein, neutral detergent fiber and acid detergent fiber and in vitro dry matter digestibility. After one year of establishment, a cafeteria test was carried out with heifers (300 kg of live weight) to calculate the relative acceptability index).  Results:  Due to their high crude protein content, associated C. clandestinum (naturalized), D. glomerata and F. arundinacea, stood out (p &lt; 0,01), compared with the other grasses and the pure control. In general, all the samples of L. uliginosus showed good nutritional content, with high values of protein (26,5 %) and in vitro dry matter digestibility (68,6 %), especially.  Conclusions:  The association that showed the highest relative acceptability index was C. clandestinus (naturalized), being also the one with the best CP content and digestibility. F. arundinacea stood out as the promising material for the establishment in associations with legumes, due to its nutritional quality and compatibility with the legume.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[forrajes]]></kwd>
<kwd lng="es"><![CDATA[leguminosas]]></kwd>
<kwd lng="es"><![CDATA[calidad de los alimentos]]></kwd>
<kwd lng="es"><![CDATA[aceptabilidad]]></kwd>
<kwd lng="en"><![CDATA[forages]]></kwd>
<kwd lng="en"><![CDATA[legumes]]></kwd>
<kwd lng="en"><![CDATA[feed quality]]></kwd>
<kwd lng="en"><![CDATA[acceptability]]></kwd>
</kwd-group>
</article-meta>
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