<?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>2007-3380</journal-id>
<journal-title><![CDATA[Revista bio ciencias]]></journal-title>
<abbrev-journal-title><![CDATA[Revista bio ciencias]]></abbrev-journal-title>
<issn>2007-3380</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma de Nayarit]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-33802020000100113</article-id>
<article-id pub-id-type="doi">10.15741/revbio.07.e730</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Quality evaluation of mixed silage of maize (Zea mays) and forage tree species (Leucaena leucocephala and Brosimum alicastrum)]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación de la calidad de ensilajes mixtos de maíz (Zea mays) y especies arbóreas (Leucaena leucocephala y Brosimum alicastrum)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cárdenas Medina]]></surname>
<given-names><![CDATA[J. V.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Matú Sansores]]></surname>
<given-names><![CDATA[F. J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mena Arceo]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos Trejo]]></surname>
<given-names><![CDATA[O. S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de Tizimín  ]]></institution>
<addr-line><![CDATA[ Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>7</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33802020000100113&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33802020000100113&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33802020000100113&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The effect of adding fodder tree species (Leucaena leucocephala y Brosimum alicastrum), in maize silage quality (Zea mays) was evaluated. The fodder trees were included at 15, 30 and 45 %, the corn silage alone was considered as control. Laboratory microsilos (1.8 L) were used, and opened on day 60, to determine chemical composition and fermentation characteristics. Average chemical composition was 7.7 ± 2.2, 53.7 ± 1.2 and 36.4 ± 3.1 for CP, NDF and ADF, significant differences (p&lt;0.05) were found for CP and ADF, by the effect of the fodder tree addition level. Fermentative characteristics were 3.9 ± 0.3, 4.0 ± 1.0 and 10.4 ± 2.9, for pH, LA and N-NH3/TN, respectively, significant differences (p&lt;0.05) in pH and LA by the effect of the fodder tree addition level were found, and in the content of N-NH3/TN by the effect of the fodder tree species and the addition percentage. Mixed silage (grass + fodder tree) could be an option to increase nutrient content in ruminant diets in the tropic.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se evaluó el efecto de incluir dos especies arbóreas (Leucaena leucocephala y Brosimum alicastrum), en la calidad del ensilaje de maíz (Zea mays). Las arbóreas se incluyeron al 15, 30 y 45 %, el ensilaje solo de maíz se consideró como testigo. Se emplearon microsilos de laboratorio (1.8 L), los cuales se abrieron a los 60 días, para determinar la composición química y las características fermentativas. La composición química promedio fue de 7.7 ± 2.2, 53.7 ± 1.2 y 36.4 ± 3.1 para CP, NDF y ADF respectivamente, y se encontraron diferencias significativas (p&lt;0.05) para CP y ADF, por efecto del porcentaje de incusión de la arbórea. Las características fermentativas promedio fueron 3.9 ± 0.3, 4.0 ± 1.0 y 10.4 ± 2.9, para pH, LA y N-NH3/TN respectivamente, se encontraron diferencias significativas (p&lt;0.05) en pH y LA por efecto del porcentaje de inclusión, y en el contenido de N-NH3/TN por efecto de la especie arbórea y el porcentaje de inclusión. Los ensilajes mixtos (gramíneas + arbóreas) pueden representar una opción, para incrementar el aporte de nutrientes en dietas de rumiantes en el trópico.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Silage]]></kwd>
<kwd lng="en"><![CDATA[fodder tree]]></kwd>
<kwd lng="en"><![CDATA[quality]]></kwd>
<kwd lng="en"><![CDATA[ruminant]]></kwd>
<kwd lng="es"><![CDATA[Ensilaje]]></kwd>
<kwd lng="es"><![CDATA[arbóreas]]></kwd>
<kwd lng="es"><![CDATA[calidad]]></kwd>
<kwd lng="es"><![CDATA[rumiantes]]></kwd>
</kwd-group>
</article-meta>
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