<?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>2007-1124</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. pecuarias]]></abbrev-journal-title>
<issn>2007-1124</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11242019000100212</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v10i1.4451</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Composición botánica y valor nutritivo de la dieta consumida por bovinos en un área invadida por pasto rosado [Melinis repens (willd.) Zizka]]]></article-title>
<article-title xml:lang="en"><![CDATA[Botanical composition and nutritive value of the diet consumed by cattle in an area invaded by natal grass [Melinis repens (Willd.) Zizka]]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez Gutiérrez]]></surname>
<given-names><![CDATA[Obed Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales Nieto]]></surname>
<given-names><![CDATA[Carlos Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villalobos González]]></surname>
<given-names><![CDATA[José Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruíz Barrera]]></surname>
<given-names><![CDATA[Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega Gutiérrez]]></surname>
<given-names><![CDATA[Juan Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacio Nuñez]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chihuahua  ]]></institution>
<addr-line><![CDATA[Chihuahua Chih]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Texas Tech University  ]]></institution>
<addr-line><![CDATA[Lubbock Texas]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Posgraduados  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>10</volume>
<numero>1</numero>
<fpage>212</fpage>
<lpage>226</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242019000100212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242019000100212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242019000100212&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se evaluó la composición botánica y el valor nutricional de la dieta de ganado bovino en áreas invadidas por pasto rosado [Melinis repens (Willd.) Zizka]. La investigación se realizó en el Rancho Salinas, municipio de Satevó, Chihuahua, en un pastizal amacollado arbosufrutescente. La composición botánica del área se determinó por el método de línea de puntos. Los muestreos se realizaron de agosto de 2013 a febrero de 2014 y se utilizaron dos vaquillas fistuladas del esófago de la cruza Hereford-Angus de 350 ± 5 kg. La composición botánica de la dieta se obtuvo mediante la técnica microhistológica y su valor nutricional por análisis bromatológico. Los datos se sometieron a un análisis de varianza; los datos de calidad de la dieta se ajustaron a un modelo mixto mediante el procedimiento PROC MIXED del SAS. El promedio de forraje disponible durante las cuatro etapas fenológicas fue de 1,279 kg MS ha-1, con presencia del pasto rosado del 87.5 % (1,119.13 kg MS ha-1). La dieta seleccionada por el ganado bovino estuvo compuesta por 74 % de gramíneas, 19 % de arbustivas y 7 % de herbáceas. Las especies preferidas fueron Aristida divaricata (8.43) y Croton pottsii (12.95) durante la etapa de crecimiento; el menor índice de preferencia fue para Melinis repens (0.33 a 0.41). El mayor contenido de proteína cruda se obtuvo durante las etapas de crecimiento (13.23 %) y floración (10.71 %). La mejor calidad de la dieta se presentó durante las etapas de crecimiento y floración, y estuvo compuesta principalmente por Melinis repens en las cuatro etapas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The objective was to evaluate the botanical composition and nutritional value in the diet of bovine cattle in areas invaded by natal grass [Melinis repens (Willd.) Zizka]. The research was conducted at the Salinas Ranch, in the municipality of Satevó, Chihuahua, in a brush grassland. Botanical composition of the area was determined by the line-point intercept method. Sampling was conducted from August 2013 to February 2014. The botanical composition of the diet (microhistological technique) and the nutritional value were determined using two esophageal-fistulated Hereford/Angus heifers (350 ± 5 kg). The data were subjected to a variance analysis, and the chemical composition of the diet was fitted using the PROC MIXED procedure of SAS to a mixed model. The average available forage during the four phenological stages was 1,279 kg DM ha-1, with a presence of 87.5 % natal grass (1,119.13 kg DM ha-1). The highest preference indexes were for Aristida divaricata (8.43) and Croton pottsii (12.95) during the growing stage; whereas the least preferred species was Melinis repens (0.33 to 0.41). The highest crude protein content was observed during the growing (13.23 %) and flowering stages (10.71 %). During this study the best quality of the diet was determined during the growing and flowering stages and was mainly composed of Melinis repens during four stages.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Índice de preferencia]]></kwd>
<kwd lng="es"><![CDATA[Consumo voluntario]]></kwd>
<kwd lng="es"><![CDATA[Melinis repens]]></kwd>
<kwd lng="en"><![CDATA[Preference index]]></kwd>
<kwd lng="en"><![CDATA[Voluntary intake]]></kwd>
<kwd lng="en"><![CDATA[Melinis repens]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="book">
<collab>INEGI. Instituto Nacional de Estadística y Geografía</collab>
<source><![CDATA[Anuario estadístico y geográfico de Chihuahua]]></source>
<year>2015</year>
<publisher-loc><![CDATA[Aguascalientes, México ]]></publisher-loc>
<publisher-name><![CDATA[Ed. Instituto Nacional de Estadística y Geografía]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<collab>INEGI. Instituto Nacional de Estadística y Geografía</collab>
<source><![CDATA[Anuario estadístico del Estado de Chihuahua]]></source>
<year>1995</year>
<publisher-name><![CDATA[Gobierno de Chihuahua]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Báez]]></surname>
<given-names><![CDATA[GAD]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[LG]]></given-names>
</name>
<name>
<surname><![CDATA[Melgoza]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Royo]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Carrillo]]></surname>
<given-names><![CDATA[RR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características productivas del sistema vaca-cría en el estado de Chihuahua]]></article-title>
<source><![CDATA[Tec Pecu Mex]]></source>
<year>1999</year>
<volume>37</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>11-24</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="">
<collab>SNIIM. Sistema nacional de información e integración de mercados</collab>
<source><![CDATA[Mercados del exterior]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Callejas]]></surname>
<given-names><![CDATA[JN]]></given-names>
</name>
<name>
<surname><![CDATA[Aranda]]></surname>
<given-names><![CDATA[GH]]></given-names>
</name>
<name>
<surname><![CDATA[Rebollar]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[De la Fuente]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Situación económica de la producción de bovinos de carne en el Estado de Chihuahua, México]]></article-title>
<source><![CDATA[Agron Mesoam]]></source>
<year>2014</year>
<volume>25</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>133-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guzmán-Aranda]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
</person-group>
<source><![CDATA[PACP-Ch. Plan de acción para la conservación y uso sustentable de los pastizales del desierto chihuahuense en el Estado de Chihuahua 2011-2016]]></source>
<year>2011</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Gobierno del Estado de Chihuahua]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Melgoza]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Balandrán]]></surname>
<given-names><![CDATA[MI]]></given-names>
</name>
<name>
<surname><![CDATA[Mata]]></surname>
<given-names><![CDATA[GR]]></given-names>
</name>
<name>
<surname><![CDATA[Pinedo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biología del pasto rosado Melinis repens (Will.) e implicaciones para su aprovechamiento o control]]></article-title>
<source><![CDATA[Rev Mex Cienc Pecu]]></source>
<year>2014</year>
<volume>5</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>429-42</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villaseñor]]></surname>
<given-names><![CDATA[RJL]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[GFJ]]></given-names>
</name>
</person-group>
<source><![CDATA[Catálogo de malezas de México. Universidad Nacional Autónoma de México. Consejo nacional consultivo fitosanitario]]></source>
<year>1998</year>
<publisher-loc><![CDATA[México, DF ]]></publisher-loc>
<publisher-name><![CDATA[Fondo de Cultura Económica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[SAH]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Fierro]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
</person-group>
<source><![CDATA[Consumo voluntario de forraje en vacas gestantes durante la época de sequía. Bol Pastizales]]></source>
<year>1981</year>
<publisher-name><![CDATA[RELC]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[SAH]]></given-names>
</name>
<name>
<surname><![CDATA[Fierro]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Habib]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Composición botánica y valor nutricional de la dieta de bovinos en un pastizal mediano abierto en la región central de Chihuahua]]></article-title>
<source><![CDATA[Téc Pecu Méx]]></source>
<year>1986</year>
<volume>50</volume>
<page-range>90-105</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peña]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Habib]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[La técnica microhistológica; un método para determinar la composición botánica de la dieta de herbívoros]]></source>
<year>1980</year>
<volume>1</volume>
<page-range>3-82</page-range><publisher-name><![CDATA[INIP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holechek]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Vavra]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pieper]]></surname>
<given-names><![CDATA[RD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Methods for determining the nutritive quality of range ruminant diets: A review]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>1982</year>
<volume>54</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>363-76</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Serna]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Carrete]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<source><![CDATA[Georreferenciación de la dieta del ganado bovino durante el período de sequía en diferentes localidades en Durang]]></source>
<year>2012</year>
<publisher-name><![CDATA[RELC]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Berzoza]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
<name>
<surname><![CDATA[Báez]]></surname>
<given-names><![CDATA[AD]]></given-names>
</name>
</person-group>
<source><![CDATA[Estadísticas climatológicas básicas del Estado de Chihuahua (periodo 1961-2003)]]></source>
<year>2006</year>
<numero>1</numero>
<issue>1</issue>
<publisher-name><![CDATA[INIFAP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="book">
<collab>CONAGUA</collab>
<source><![CDATA[Reporte del clima en México]]></source>
<year>2013</year>
<publisher-name><![CDATA[Coordinación general del servicio meteorológico nacional gerencia de meteorología y climatología subgerencia de pronóstico a mediano y largo plazo]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="book">
<collab>COTECOCA. Comisión Técnica Consultiva para la Determinación de los Coeficientes de Agostadero</collab>
<source><![CDATA[Determinación de los Coeficientes de Agostadero Chihuahua]]></source>
<year>1978</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Secretaria de Agricultura y Recursos Hidráulicos]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[SAH]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[GE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intensidad de pastoreo y esquema de utilización en la selección de la dieta del ganado bovino durante la sequía]]></article-title>
<source><![CDATA[Téc Pecu Méx]]></source>
<year>2000</year>
<volume>38</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>19-34</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Herrick]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Van Zee]]></surname>
<given-names><![CDATA[JW]]></given-names>
</name>
<name>
<surname><![CDATA[Havstad]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
<name>
<surname><![CDATA[Burkett]]></surname>
<given-names><![CDATA[LM]]></given-names>
</name>
<name>
<surname><![CDATA[Whitford]]></surname>
<given-names><![CDATA[WG]]></given-names>
</name>
</person-group>
<source><![CDATA[onitoring manual for grassland, shrubland and savanna ecosystems]]></source>
<year>2009</year>
<volume>I</volume>
<publisher-loc><![CDATA[Las Cruces, New Mexico ]]></publisher-loc>
<publisher-name><![CDATA[ARS Jornada Experimental Range]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holechek]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Vavra]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effects of slide and frequency observation numbers on the precision of microhistological analysis]]></article-title>
<source><![CDATA[J Range Manage]]></source>
<year>1981</year>
<volume>34</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>337-8</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Holechek]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Vavra]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fistula sample numbers required to determine cattle diets on forest and grassland ranges]]></article-title>
<source><![CDATA[J Range Manage]]></source>
<year>1983</year>
<volume>36</volume>
<page-range>323-6</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ellis]]></surname>
<given-names><![CDATA[WC]]></given-names>
</name>
<name>
<surname><![CDATA[Bailey]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A silicone esophageal cannula; its surgical installation and use in research with grazing cattle, sheep or goats]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>1984</year>
<volume>59</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>204-9</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="">
<collab>AOAC</collab>
<source><![CDATA[Official methods of analysis of the assoc. off anal. chem]]></source>
<year>2012</year>
<edition>19ª</edition>
<publisher-loc><![CDATA[Wahington, DC. USA ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="">
<collab>Ankom Technology</collab>
<source><![CDATA[Procedures for fiber and in vitro analysis]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Dyne]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Heady]]></surname>
<given-names><![CDATA[HF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Botanical composition of sheep and cattle diets on a mature annual range]]></article-title>
<source><![CDATA[Hilgardia]]></source>
<year>1965</year>
<volume>36</volume>
<page-range>465-92</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Soest]]></surname>
<given-names><![CDATA[PJ]]></given-names>
</name>
<name>
<surname><![CDATA[Robertson JB]]></surname>
<given-names><![CDATA[Lewis BA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Methods for dietary fiber, neutral detergent fiber, and non-starch polysaccharides in relation to animal nutrition]]></article-title>
<source><![CDATA[J Dairy Sci]]></source>
<year>1991</year>
<volume>74</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>3583-97</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="">
<collab>SAS Institute Inc</collab>
<source><![CDATA[SAS 9.1.3 User´s guide]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Cary, NC, USA ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[RA]]></given-names>
</name>
<name>
<surname><![CDATA[Flores]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[De Luna]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Luna]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Frías]]></surname>
<given-names><![CDATA[JT]]></given-names>
</name>
<name>
<surname><![CDATA[Olalde]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biomasa aérea, cantidad y calidad de semilla de Melinis repens (Willd.) Zizka, en Aguascalientes, México]]></article-title>
<source><![CDATA[Rev Mex Cienc Pecu]]></source>
<year>2012</year>
<volume>3</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Launchbaugh]]></surname>
<given-names><![CDATA[KL]]></given-names>
</name>
<name>
<surname><![CDATA[Stuth]]></surname>
<given-names><![CDATA[JW]]></given-names>
</name>
<name>
<surname><![CDATA[Holloway]]></surname>
<given-names><![CDATA[JW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In&#64258;uence of range site on diet selection and nutrient intake of cattle]]></article-title>
<source><![CDATA[J Range Manage]]></source>
<year>1990</year>
<volume>43</volume>
<page-range>109-15</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ralphs]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Pfister]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cattle diets in tall forb communities on mountain rangelands]]></article-title>
<source><![CDATA[J Range Manage]]></source>
<year>1992</year>
<volume>45</volume>
<page-range>534-7</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beck]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Peek]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diet composition, forage selection, and potential for forage competition among elk, deer, and livestock on aspen-sagebrush summer range]]></article-title>
<source><![CDATA[Rangeland Ecol Manag]]></source>
<year>2005</year>
<volume>58</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>135-47</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vásquez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pezo]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
<name>
<surname><![CDATA[Skarpe]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Selectividad de especies forrajeras por bovinos en pastizales seminaturales del trópico centroamericano: un estudio basado en la observación sistemática del pastoreo]]></article-title>
<source><![CDATA[Zootecnia Trop]]></source>
<year>2012</year>
<volume>30</volume>
<page-range>063-80</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes-Estrada]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Murillo-Ortiz]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera-Torres]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Gurrola-Reyes]]></surname>
<given-names><![CDATA[JN]]></given-names>
</name>
<name>
<surname><![CDATA[Carrete-Carreón]]></surname>
<given-names><![CDATA[FO]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cambios estacionales en consumo, composición química y degradabilidad ruminal de la dieta seleccionada por novillos en pastoreo]]></article-title>
<source><![CDATA[Ecosistemas y Recursos Agropecuarios]]></source>
<year>2014</year>
<volume>1</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>97-106</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murillo]]></surname>
<given-names><![CDATA[OM]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[EO]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[TE]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[GJH]]></given-names>
</name>
<name>
<surname><![CDATA[Villareal]]></surname>
<given-names><![CDATA[RG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Annual and seasonal variation in nutritive quality and ruminal fermentation patters of diets in steers grazing native rangelands]]></article-title>
<source><![CDATA[African J Agr Res]]></source>
<year>2013</year>
<volume>8</volume>
<numero>33</numero>
<issue>33</issue>
<page-range>4408-13</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villalobos]]></surname>
<given-names><![CDATA[GC]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[VE]]></given-names>
</name>
<name>
<surname><![CDATA[Ortega]]></surname>
<given-names><![CDATA[SJA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Técnicas para estimar la degradación de la proteína y materia orgánica en el rumen y su importancia en rumiantes en pastoreo]]></article-title>
<source><![CDATA[Téc Pecu Méx]]></source>
<year>2000</year>
<volume>38</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>119-34</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tena]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<source><![CDATA[Composición química de zacates nativos, introducidos y arbustivas en cuatro estados fenológicos]]></source>
<year>1984</year>
<publisher-name><![CDATA[RELC]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="book">
<collab>CIPES. Centro de Investigaciones Pecuarias del Estado de Sonora.</collab>
<source><![CDATA[Manejo de Pastizales. 20 años de investigación pecuaria en el estado de Sonora]]></source>
<year>1989</year>
<publisher-name><![CDATA[INIFAP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[NC]]></given-names>
</name>
<name>
<surname><![CDATA[Madrid]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Melgoza]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Arévalo]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Rascón]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
<name>
<surname><![CDATA[Jurado]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análisis morfológico de la diversidad del pasto navajita [Bouteloua gracilis (Willd. ex Kunth) Lag. ex Steud.], en Chihuahua, México]]></article-title>
<source><![CDATA[Téc Pecu Méx]]></source>
<year>2009</year>
<volume>47</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>245-56</page-range></nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Murillo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Carrete]]></surname>
<given-names><![CDATA[FO]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Seasonal and annual changes in the quality of native rangeland selected by grazing steers in northern Mexico]]></article-title>
<source><![CDATA[Cienc Inv Agr]]></source>
<year>2016</year>
<volume>43</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>203-12</page-range></nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vázquez de Aldana]]></surname>
<given-names><![CDATA[BR]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[CE]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[CB]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Elemental content in grassland of semiarid zones: effect of topographic position and botanical composition]]></article-title>
<source><![CDATA[Commun Soil Sci Plant Anal]]></source>
<year>1993</year>
<volume>24</volume>
<numero>15-16</numero>
<issue>15-16</issue>
<page-range>1975-89</page-range></nlm-citation>
</ref>
<ref id="B40">
<label>40</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olson]]></surname>
<given-names><![CDATA[KC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diet sample collection by esophageal fistula and rumen evacuation techniques]]></article-title>
<source><![CDATA[J Range Manage]]></source>
<year>1991</year>
<volume>44</volume>
<page-range>515-9</page-range></nlm-citation>
</ref>
<ref id="B41">
<label>41</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Clark A Del Curto]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Vavra]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Dick]]></surname>
<given-names><![CDATA[BL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stocking rate and fuels reduction effects on beef cattle diet composition and quality]]></article-title>
<source><![CDATA[Rangeland Ecol Manag]]></source>
<year>2013</year>
<volume>66</volume>
<page-range>714-20</page-range></nlm-citation>
</ref>
<ref id="B42">
<label>42</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Murillo]]></surname>
<given-names><![CDATA[OM]]></given-names>
</name>
<name>
<surname><![CDATA[Palacio]]></surname>
<given-names><![CDATA[CC]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[EP]]></given-names>
</name>
<name>
<surname><![CDATA[Carrete]]></surname>
<given-names><![CDATA[CFO]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[BO]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Valor nutricional de la dieta consumida por ganado bovino en un pastizal mediano arbosufrutescente durante tres estaciones del año]]></article-title>
<source><![CDATA[AGROFAZ]]></source>
<year>2004</year>
<volume>4</volume>
<page-range>561-6</page-range></nlm-citation>
</ref>
<ref id="B43">
<label>43</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Scales]]></surname>
<given-names><![CDATA[CH]]></given-names>
</name>
<name>
<surname><![CDATA[Streeter]]></surname>
<given-names><![CDATA[CL]]></given-names>
</name>
<name>
<surname><![CDATA[Denham]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of mastication, salivary contamination and leaching on the chemical composition of forage samples collected via esophageal fistulae]]></article-title>
<source><![CDATA[J Anim Sci]]></source>
<year>1974</year>
<volume>38</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1278-83</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
