<?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>0122-0268</journal-id>
<journal-title><![CDATA[Revista MVZ Córdoba]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.MVZ Cordoba]]></abbrev-journal-title>
<issn>0122-0268</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Córdoba - Facultad de Medicina Veterinaria y Zootecnia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-02682018000106448</article-id>
<article-id pub-id-type="doi">10.21897/rmvz.1240</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Characterization of the dual-purpose bovine system in northwest Mexico: producers, resources and problematic]]></article-title>
<article-title xml:lang="es"><![CDATA[Caracterización del sistema bovino doble propósito en el noroeste de México: productores, recursos y problemática]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuevas-Reyes]]></surname>
<given-names><![CDATA[Venancio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Nieto]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[San Luis Potosí ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>23</volume>
<numero>1</numero>
<fpage>6448</fpage>
<lpage>6460</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-02682018000106448&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-02682018000106448&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-02682018000106448&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective.  The present study consisted in characterizing the dual-purpose cattle system and the factors that limit the productivity of this system in northern Sinaloa, Mexico.  Material and Methods.  We applied a survey to 214 producers and we analyzed the data with analyses of factors and conglomerate.  Results. The analysis of factors identified five components: resources level, productivity, technological level, livestock management and socioeconomic aspects and these components explain 70.5% of the total cumulative variance. The conglomerate analysis identified three clusters: cluster 1 (52.5%, 105 producers) defined as a system focused on milk production. Cluster 2 (41.5%, 83 producers) defined as traditional farms of meat and milk production and Cluster 3 (6%; 12 producers) defined as farms focused on meat production. The three clusters present similar livestock management (p&gt;0.05). The producers base their feeding strategies on grazing rangeland with seasonal supplementation of silage and commercial concentrate; however, each cluster differed (p&lt;0.05) in the level of use of these resources.  Conclusion. The present study identifies, in the dual-purpose cattle system in northern Sinaloa, low milk yield and limit forage resources as main problems that results in multiple strategies that the producers follow to solve it. The social aspects and the level of resources (land, animals, machinery and equipment and infrastructure) play an important role therefore they must be considered independently to help to define differentiated technological strategies.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo.  El estudio consistió en realizar una caracterización del sistema bovinos de doble propósito y los factores que limitan la productividad de este sistema en el norte de Sinaloa, México.  Materiales y Métodos.  Se aplicó una encuesta a 214 productores y la información se analizó mediante un análisis de factores y de conglomerados.  Resultados.  El análisis de factores identificó cinco componentes; nivel de recursos, productividad, nivel tecnológico, manejo del ganado y aspectos socioeconómicos. Estos cinco factores explican el 70.5% del total de la varianza acumulada. El análisis de conglomerados identificó tres clústers o grupos: Clúster 1 (105 productores, 52.5%) se definió como sistema enfocado a la producción de leche, Clúster 2 (83 productores, 41.5%) definido como explotaciones tradicionales productoras de carne y leche y Clúster 3 (12 productores, 6%) definido como explotaciones enfocadas la producción de carne. Los tres clústers presentan un manejo similar del ganado (p&gt;0.05). Los productores de los clústers basan sus estrategias de alimentación del ganado en el pastoreo con suplementación estacional de ensilaje y concentrado comercial, no obstante, cada clúster tiene diferentes (p&lt;0.05) niveles de uso de recursos.  Conclusiones.  El presente estudio identifico, en los sistemas bovino de doble propósito del norte de Sinaloa, como problemas principales una baja producción de leche y escasez de forraje que se manifiesta en múltiples estrategias que siguen los productores para resolverla. Los aspectos sociales y el nivel de recursos (tierra, animales, maquinaria, equipo e infraestructura) juegan un papel importante por lo que deben de ser considerados de manera independiente para la definición de estrategias tecnológicas diferenciadas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[dry tropics]]></kwd>
<kwd lng="en"><![CDATA[productive resources]]></kwd>
<kwd lng="en"><![CDATA[problems]]></kwd>
<kwd lng="en"><![CDATA[livestock grazing (Source: CAB)]]></kwd>
<kwd lng="es"><![CDATA[trópico seco]]></kwd>
<kwd lng="es"><![CDATA[recursos productivos]]></kwd>
<kwd lng="es"><![CDATA[problemática]]></kwd>
<kwd lng="es"><![CDATA[pastoreo del ganado (Fuente: CAB)]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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