<?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>S2007-11242019000400819</article-id>
<article-id pub-id-type="doi">10.22319/rmcp.v10i4.4850</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio biométrico del bovino criollo de Santa Elena (Ecuador)]]></article-title>
<article-title xml:lang="en"><![CDATA[Biometric study of Criollo Santa Elena Peninsula cattle (Ecuador)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabezas Congo]]></surname>
<given-names><![CDATA[Ronald]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barba Capote]]></surname>
<given-names><![CDATA[Cecilio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Martínez]]></surname>
<given-names><![CDATA[Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cevallos Falquez]]></surname>
<given-names><![CDATA[Orly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León Jurado]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar Reyes]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Martínez]]></surname>
<given-names><![CDATA[Antón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Técnica Estatal de Quevedo Facultad de Ciencias Pecuarias ]]></institution>
<addr-line><![CDATA[Quevedo ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Córdoba Departamento de Producción Animal ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Córdoba Departamento de Genética ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>10</volume>
<numero>4</numero>
<fpage>819</fpage>
<lpage>836</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11242019000400819&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11242019000400819&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11242019000400819&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se estudió una muestra de 217 animales adultos (198 hembras y 19 machos) de ganado bovino criollo de la provincia de Santa Elena (Ecuador) con el objetivo de realizar un análisis biométrico como base para su caracterización racial. Se obtuvieron los estadísticos descriptivos de 14 variables zoométricas, el peso vivo y 14 índices zoométricos. Asimismo, se efectuó un análisis de varianza con el sexo como factor de variación, se estimaron los coeficientes de correlación Pearson, así como se realizó un análisis de componentes principales a partir de los residuos de las variables. Posteriormente, se realizó un análisis multivariante para la diferenciación de poblaciones mediante análisis discriminante canónico utilizando 14 variables zoométricas y el peso vivo sobre una muestra de 1,388 hembras adultas (Lojano: 198; Manabí: 794; Santa Elena: 198; Tsachilas: 198). Los resultados obtenidos confirman que la población bovina de Santa Elena presenta tendencia eumétrica y un formato corporal intermedio respecto al resto de razas criollas, de tipo dolicocéfalo, proporciones corporales sublongilíneas y esqueleto fino, lo que confirma su predisposición a la producción lechera. En conjunto, los animales estudiados arrojan un moderado grado de homogeneidad y armonía, destacando la existencia de un moderado a elevado dimorfismo sexual que sugiere una gestión genética diferente entre sexos. El nivel de significancia de las funciones discriminantes, junto a las distancias de Mahalanobis y las distancias euclidianas individuales, demostró que cada raza tiene un patrón zoométrico distinto, lo que implica la clara diferenciación morfométrica entre las cuatro poblaciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Biometric characterization is useful in describing cattle breeds, distinguishing between them and assessing their diversity. The Criollo Santa Elena Peninsula (Ecuador) breed was described with a biometric analysis of 217 adult animals (198 females and 19 females) involving fourteen morphometric variables, live weight and fourteen morphometric indices. An analysis of variance was run with only sex as the variation factor. Pearson correlation coefficients were estimated and principal components analysis run based on variable residuals. A multivariate analysis was then run to differentiate between four Ecuadorian Creole cattle populations with a canonical discriminant analysis. This involved fourteen morphometric variables and live weight in a sample of 1,388 adult females (Lojano: 198; Manabí: 794; Santa Elena: 198; Tsachilas: 198). The results indicate the Criollo Santa Elena Peninsula breed has a normal tendency and an intermediate body format compared to other creole breeds. It is dolichocephalic type, has sublongilinear body proportions and a fine skeleton (particularly in females), highlighting its suitability for dairy production. Overall, the studied population exhibited moderate homogeneity and harmony, with moderate to high sexual dimorphism, suggesting different genetic management of the sexes. The discriminant function significance levels in conjunction with the Mahalanobis and Euclidean distances indicate that each breed in the analysis has a distinct morphometric pattern, suggesting clear morphometric differentiation between the four populations.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Análisis biométrico]]></kwd>
<kwd lng="es"><![CDATA[Razas criollas]]></kwd>
<kwd lng="es"><![CDATA[Caracterización racial]]></kwd>
<kwd lng="en"><![CDATA[Biometric analysis]]></kwd>
<kwd lng="en"><![CDATA[Creole breeds]]></kwd>
<kwd lng="en"><![CDATA[Breed characterization]]></kwd>
</kwd-group>
</article-meta>
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