<?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>1870-5472</journal-id>
<journal-title><![CDATA[Agricultura, sociedad y desarrollo]]></journal-title>
<abbrev-journal-title><![CDATA[agric. soc. desarro]]></abbrev-journal-title>
<issn>1870-5472</issn>
<publisher>
<publisher-name><![CDATA[Colegio de Postgraduados]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-54722017000400617</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Dominancia, composición química-nutritiva de especies forrajearas y fitomasa potencial en una selva secundaria]]></article-title>
<article-title xml:lang="en"><![CDATA[Dominance, chemical-nutritional composition, and potential phytomass of fodder species in a secondary rainforest]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Fuentes-Galindo]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Rebeles]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Ortiz]]></surname>
<given-names><![CDATA[Silvia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ku-Vera]]></surname>
<given-names><![CDATA[J. Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Albor-Pinto]]></surname>
<given-names><![CDATA[C. de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sangines-García]]></surname>
<given-names><![CDATA[J. Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Campus Veracruz ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Yucatán Facultad de Medicina Veterinaria y Zootecnia Campus de Ciencias Biológicas y Agropecuarias]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Tecnológico de Conkal  ]]></institution>
<addr-line><![CDATA[ Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>14</volume>
<numero>4</numero>
<fpage>617</fpage>
<lpage>634</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-54722017000400617&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-54722017000400617&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-54722017000400617&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se determinó la relación entre abundancia, dominancia y similitud de especies forrajeras con la calidad nutritiva y cantidad de fitomasa potencial para la alimentación de bovinos en sitios con vegetación forestal, arbustiva y herbácea en la época seca y la lluvia. Se encontraron 54 especies forrajeras agrupadas en 21 familias (dominando Fabacea). La abundancia de leñosas forrajeras fue mayor en temporada de lluvias en la comunidad forestal (p&lt;0.0001; 52.8±11.4) y en la de secas en la arbustiva (p=0.002; 14.80±3.09). La similitud entre comunidades varió de 0.27 a 0.54. Las especies forrajeras dominantes de la comunidad forestal en lluvias presentaron altos valores nutricionales, degradabilidad ruminal (65.9-89.0 %) y energía metabolizable (9.35-11.52 MJ/kg MS). El mayor contenido de taninos fue en Bauhinia divaricata (12.75 %). La fitomasa potencial rindió 3272 y 1454 kg MS/ha en lluvias y secas, respectivamente, y fue mayor en herbáceas (P&lt;0.0001; 3977±2299 y 2451±3336, respectivamente). Se encontró una gran diversidad de especies forrajeras, diferentes en cada comunidad vegetal, y que difieren en calidad químico-nutritiva. En su conjunto, la fitomasa potencial de todos los estratos y la variedad de nutrientes que las especies contienen se complementan para alimentar bovinos a lo largo del año.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The relationship between abundance, dominance and similarity of fodder species with the nutritional quality and quantity of potential phytomass for feeding bovines was determined, in sites with forest, shrub and herbaceous vegetation in dry and rain season. Fifty-four (54) fodder species were found grouped into 21 families (with Fabacea dominating). The abundance of woody fodder was higher in the rain season in the forest community (p&lt;0.0001; 52.8±11.4) and in the dry season in the shrub community (p=0.002; 14.80±3.09). The similarity between communities varied from 0.27 to 0.54. The dominating fodder species of the forest community in the rain season presented high nutritional values, ruminal degradability (65.9-89.0 %) and metabolizable energy (9.35-11.52 MJ/kg DM). The highest content of tannins was in Bauhinia divaricata (12.75 %). The potential phytomass yielded 3272 and 1454 kg DM/ha in the rain and dry seasons, respectively, and was higher in herbs (P&lt;0.0001; 3977±2299 and 2451±3336, respectively). A large diversity of fodder species was found, different in each plant community, and which differ in chemical-nutritional quality. As a whole, the potential phytomass of all the strata and the variety of nutrients that the species contain complement each other to feed bovines throughout the year.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[nutrientes]]></kwd>
<kwd lng="es"><![CDATA[diversidad]]></kwd>
<kwd lng="es"><![CDATA[vegetación nativa]]></kwd>
<kwd lng="es"><![CDATA[bovinos]]></kwd>
<kwd lng="en"><![CDATA[nutrients]]></kwd>
<kwd lng="en"><![CDATA[diversity]]></kwd>
<kwd lng="en"><![CDATA[native vegetation]]></kwd>
<kwd lng="en"><![CDATA[bovines]]></kwd>
</kwd-group>
</article-meta>
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