<?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>2079-3480</journal-id>
<journal-title><![CDATA[Cuban Journal of Agricultural Science]]></journal-title>
<abbrev-journal-title><![CDATA[Cuban J. Agric. Sci.]]></abbrev-journal-title>
<issn>2079-3480</issn>
<publisher>
<publisher-name><![CDATA[Editorial del Instituto de Ciencia Animal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2079-34802018000300347</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Nutritional characterization of Gliricidia sepium in a saline and high drought ecosystem of the Cauto river basin, Cuba]]></article-title>
<article-title xml:lang="es"><![CDATA[Caracterización nutritiva de Gliricidia sepium en un ecosistema salino y de alta sequía de la cuenca del río Cauto, Cuba]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[La O]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vásquez]]></surname>
<given-names><![CDATA[Maribell C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ledea]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Ciencia Animal  ]]></institution>
<addr-line><![CDATA[San José de las Lajas Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Ciudad Juárez  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Benito Juárez de Oaxaca Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Sinaloa Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto de Investigaciones Agropecuarias &#8220;Jorge Dimitrov&#8221;  ]]></institution>
<addr-line><![CDATA[ Granma]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Estatal del Sur de Manabí  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<volume>52</volume>
<numero>3</numero>
<fpage>347</fpage>
<lpage>356</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802018000300347&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802018000300347&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802018000300347&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract An experimental sequence with Gliricidia sepium forage was carried out, from a saline and high drought ecosystem of the Cauto river basin, in Granma, Cuba, to determine the chemical composition, in situ effective ruminal degradability (ED) of dry matter (DM) and in vitro apparent and true digestibility of DM, organic matter, neutral detergent fiber and acid detergent fiber using the Daysi @ procedure. For the study of in situ degradability, times of 6, 12, 24, 36, 48 and 72 h were used. In the contents of the chemical composition values of 24.79, 36.32, 19.51, 16.81, 0.16 and 18.74 % were found for crude protein, neutral detergent fiber, acid detergent fiber, hemicellulose, lignin and cellulose, respectively. The kinetic degradation performance was characterized by an increase in the dynamics disappearance of the dry matter with the incubation time in the rumen, while in the effective ruminal degradability of DM values between 63.1 and 67.6 % were obtained for different constants of ruminal replacement. The fit of the in situ ruminal degradability data to the proposed model, P = a + b (1 - e-ct), showed R2 higher to 97.00. The estimates of apparent digestibility of dry matter, organic matter, neutral detergent fiber and acid detergent fiber maintained values of 73.57, 64.25, 26.72 and 14.35 % respectively, much lower than true digestibilities, with 17.88, 67.14, 27.93 and 15.00 % for these same constituents, respectively. The results of the analysis of the chemical composition, in situ ruminal degradability of the dry matter and in vitro apparent and true digestibility of the dry matter, organic matter, neutral detergent fiber and acid detergent fiber of Gliricidia sepium show its high nutritional value for ruminants in the region. However, physiological studies that relates the cut frequency, degree of use of nutrients by the animal and effect of some secondary metabolites on the physiological and productive responses of the animals when intakes the plants in these edaphoclimatic conditions are required.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se realizó una secuencia experimental con forraje de Gliricidia sepium, procedente de un ecosistema salino y de alta sequía de la cuenca del río Cauto, en Granma, Cuba, para determinar la composición química, degradabilidad efectiva ruminal in situ de la materia seca y digestibilidad aparente y verdadera in vitro de la materia seca, materia orgánica, fibra detergente neutro y fibra detergente ácido mediante el procedimiento Daysi @. Para el estudio de la degradabilidad in situ se utilizaron tiempos de 6, 12, 24, 36, 48 y 72 h. En los contenidos de la composición química se encontraron valores de 24.79, 36.32, 19.51, 16.81, 0.16 y 18.74 % para proteína bruta, fibra detergente neutro, fibra detergente ácido, hemicelulosa, lignina y celulosa, respectivamente. El comportamiento cinético de degradación se caracterizó por incremento en la dinámica de desaparición de la materia seca con el tiempo de incubación en el rumen, mientras que en la degradabilidad ruminal efectiva de MS se obtuvieron valores entre 63.1 y 67.6 % para diferentes constantes de recambio ruminal. El ajuste de los datos de degradabilidad ruminal in situ al modelo propuesto, P = a + b (1 - e-ct), mostró R2 superiores a 97.00. Los estimados de digestibilidad aparente de materia seca, materia orgánica, fibra detergente neutro y fibra detergente ácido mantuvieron valores de 73.57, 64.25, 26.72 y 14.35 % respectivamente, muy inferiores a las digestibilidades verdaderas, con 17.88, 67.14, 27.93 y 15.00 % para estos mismos constituyentes, respectivamente. Los resultados del análisis de la composición química, degradabilidad ruminal in situ de la materia seca y digestibilidad aparente y verdadera in vitro de la materia seca, materia orgánica, fibra detergente neutro y fibra detergente ácido de Gliricidia sepium demuestran su alto valor nutricional para los rumiantes de la región. Sin embargo, se requieren estudios fisiológicos que relacionen la frecuencia de corte, grado de utilización de los nutrientes por el animal y efecto de algunos metabolitos secundarios en las respuestas fisiológicas y productivas de los animales al consumir la planta en estas condiciones edafoclimáticas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[in situ ruminal degradability]]></kwd>
<kwd lng="en"><![CDATA[in vitro digestibility]]></kwd>
<kwd lng="en"><![CDATA[chemical composition]]></kwd>
<kwd lng="en"><![CDATA[Gliricidia sepium]]></kwd>
<kwd lng="es"><![CDATA[degradabilidad ruminal in situ]]></kwd>
<kwd lng="es"><![CDATA[digestibilidad in vitro]]></kwd>
<kwd lng="es"><![CDATA[composición química]]></kwd>
<kwd lng="es"><![CDATA[Gliricidia sepium]]></kwd>
</kwd-group>
</article-meta>
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<article-title xml:lang=""><![CDATA[Potential composition and use of legume shrubs and trees as fodders for livestock in the tropic]]></article-title>
<source><![CDATA[J. Agri. Science]]></source>
<year>1992</year>
<volume>118</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
