<?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>0122-8706</journal-id>
<journal-title><![CDATA[Ciencia y Tecnología Agropecuaria]]></journal-title>
<abbrev-journal-title><![CDATA[Cienc. Tecnol. Agropecuaria]]></abbrev-journal-title>
<issn>0122-8706</issn>
<publisher>
<publisher-name><![CDATA[Corporación Colombiana de Investigación Agropecuaria - Corpoica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-87062020000300016</article-id>
<article-id pub-id-type="doi">10.21930/rcta.vol21_num3_art:1700</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Nutritional and productive profile of shrub species in tropical lowlands of Antioquia (Colombia)]]></article-title>
<article-title xml:lang="es"><![CDATA[Perfil nutricional y productivo de especies arbustivas en trópico bajo, Antioquia (Colombia)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Argüello-Rangel]]></surname>
<given-names><![CDATA[Jeraldyn]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mahecha-Ledesma]]></surname>
<given-names><![CDATA[Liliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Angulo-Arizala]]></surname>
<given-names><![CDATA[Joaquín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>21</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-87062020000300016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-87062020000300016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-87062020000300016&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The soils used for livestock in the Bajo Cauca (Antioquia, Colombia) are characterized by having acid pH, low fertility, erosion, compaction, and overgrazing. For this reason, there are deficiencies in nutritional quality and forage production, especially in dry seasons. Therefore, it is necessary to evaluate the use of forage resources adaptable to this area. To compare the nutritional and productive profile of the species Crescentia cujete, Gliricidia sepium, and Tithonia diversifolia, experimental plots were established in Hacienda La Candelaria, using a completely randomized block design with and factorial arrangement. Plant height, green forage and dry matter yield (DM), dry matter content (DM%), neutral detergent fiber (NDF%), acid detergent fiber (ADF%), and crude protein (CP%) were evaluated. An analysis of variance and Tukey&#8217;s test were performed with significant differences (p &#8804; 0.05) for dry matter yield, with a projected annual production of 13.75 t/ha for Crescentia cujete, 23.2 t/ha for Gliricidia sepium, and 18.47 t/ha for Tithonia diversifolia. Significant differences were found for NDF (p = 0.0349), ADF (p &lt; 0.0001) and CP (p = 0.0037). Crescentia cujete showed the highest NDF (46.5 %) and ADF (25.1 %) contents, whereas Tithonia diversifolia recorded the lowest values (32.6 % NDF and 14.4 % ADF). The CP content was 25.2 % for Tithonia diversifolia, 24.3 % for Gliricidia sepium, and 15.0 % for Crescentia cujete. These results suggest that these species have a potential use in livestock systems in poor soil conditions.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los suelos destinados a ganadería en la región del Bajo Cauca (Antioquia, Colombia) se caracterizan por presentar pH ácido, baja fertilidad, erosión, compactación y sobrepastoreo. Debido a esto, presentan deficiencias en calidad nutricional y producción de biomasa, especialmente en épocas secas. Por lo anterior, se requiere evaluar el uso de recursos forrajeros adaptables a la zona de interés. Para comparar el perfil nutricional y productivo de las especies Crescentia cujete, Gliricidia sepium y Tithonia diversifolia, se establecieron en la hacienda La Candelaria parcelas experimentales en un diseño por bloques completamente aleatorizado con un arreglo factorial. Se evaluó altura de las plantas, rendimiento de forraje verde y materia seca (MS), y contenido de materia seca (MS %), fibra detergente neutro (FDN %), fibra detergente ácido (FDA %) y proteína cruda (PC %). Se realizó análisis de varianza y prueba de Tukey y se obtuvieron diferencias significativas (p &#8804; 0,05) para el rendimiento de materia seca, con una producción anual proyectada de 13,87 t/ha para Crescentia cujete, 23,2 t/ha para Gliricidia sepium y 18,47 t/ha para Tithonia diversifolia. Hubo diferencias significativas para FDN (p = 0,0349), FDA (p &lt; 0,0001) y PC (p = 0,0037). Crescentia cujete presentó el mayor contenido de FDN (46,5 %) y FDA (25,1 %), mientras Tithonia diversifolia registró los valores más bajos (32,6 % en FDN y 14,4 % en FDA). El contenido de PC fue de 25,2 % en T. diversifolia, 24,3 % en G. sepium y 15,0 % en C. cujete. Los resultados sugieren el potencial de estas especies en sistemas ganaderos con suelos pobres.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Crescentia cujete]]></kwd>
<kwd lng="en"><![CDATA[forage yield]]></kwd>
<kwd lng="en"><![CDATA[Gliricidia sepium]]></kwd>
<kwd lng="en"><![CDATA[sustainable agriculture]]></kwd>
<kwd lng="en"><![CDATA[Tithonia diversifolia]]></kwd>
<kwd lng="es"><![CDATA[agricultura sostenible]]></kwd>
<kwd lng="es"><![CDATA[Crescentia cujete]]></kwd>
<kwd lng="es"><![CDATA[Gliricidia sepium]]></kwd>
<kwd lng="es"><![CDATA[rendimiento del forraje]]></kwd>
<kwd lng="es"><![CDATA[Tithonia diversifolia]]></kwd>
</kwd-group>
</article-meta>
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