<?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>S0122-02682023000300061</article-id>
<article-id pub-id-type="doi">10.21897/rmvz.2921</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto del clima sobre la respuesta térmica en vacas de diferentes grupos raciales en trópico bajo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Molina-Benavides]]></surname>
<given-names><![CDATA[Raúl Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perilla-Duque]]></surname>
<given-names><![CDATA[Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos-Gaona]]></surname>
<given-names><![CDATA[Rómulo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Guerrero]]></surname>
<given-names><![CDATA[Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Palacios]]></surname>
<given-names><![CDATA[Juan Camilo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Borja]]></surname>
<given-names><![CDATA[Luis Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Rodas]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Agropecuarias Departamento de Producción Animal]]></institution>
<addr-line><![CDATA[Palmira ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Productos Naturales de la Sabana SAS "Alquería"  ]]></institution>
<addr-line><![CDATA[Palmira ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro internacional de agricultura tropical Grupo de Investigación de Agricultura Digital CGIAR ]]></institution>
<addr-line><![CDATA[Palmira ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>28</volume>
<numero>3</numero>
<fpage>61</fpage>
<lpage>71</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-02682023000300061&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-02682023000300061&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-02682023000300061&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo. La idea principal de este estudio fue cuantificar la relación entre las variables climáticas y la temperatura corporal timpánica registrada mediante el uso de sensores inalámbricos en vacas en pastoreo ubicadas en trópico bajo.  Material y métodos. Se monitorizó la temperatura timpánica de veintiocho vacas en pastoreo, de varias razas, en lactación temprana. Los sensores se instalaron manualmente en el canal timpánico, registrando datos cada hora durante 17 días. Los datos climáticos se obtuvieron de la red de estaciones meteorológicas del Centro de Investigación de la Caña de Azúcar "Cenicaña", el cual se encuentra ubicado en la ciudad de Cali, Colombia; estos datos se analizaron con el mismo intervalo de tiempo de la temperatura. La información se analizó mediante estadística descriptiva, matrices de correlación y modelos Random Forest, a través del software R.  Resultados. A partir de los datos fisiológicos recolectados automáticamente y analizados mediante Big data, se evaluaron los procesos de termorregulación, a través, de variables de respuesta. Encontramos que las variables temperatura ambiental, humedad relativa y, radiación solar fueron los factores que más influyeron en el proceso de adaptación homeotérmica de los animales.  Conclusiones. La introducción de dispositivos remotos, y el uso de una gran cantidad de datos para el análisis de indicadores fisiológicos, evita modificar el comportamiento natural de los animales y surge como una importante estrategia de diagnóstico y gestión en fincas ganaderas, ayudando en los estudios de estrés calórico, adaptación fisiológica y, prevalencia a enfermedades hemotrópicas, la cuales reducen la productividad de los sistemas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective. The main idea of this study was to quantify the relationship between climatic variables and tympanic body temperature recorded through the use of wireless sensors in grazing cows located in low tropic.  Material and methods. The tympanic temperature of twenty-eight cross breed grazing cows in early lactation was monitored. The sensors were manually installed in the tympanic cavity, recording hourly for 17 days. The climate data was obtained from the network of weather stations of the Centro de Investigación de la Caña de Azúcar "Cenicaña", which is a research center for sugarcane located in Cali, Colombia, this data was analyzed for the same time interval of the temperature. The information was analyzed using descriptive statistics, correlation matrices and Random Forest models, through the R software.  Results. From the physiological data from automatic collection systems, the response variables that would allow the evaluation of thermoregulation processes were analyzed using big data. We find that the variables environmental temperature, relative humidity and, solar radiation were the factors that most influenced the homeothermic adaptation process of the animals.  Conclusions. The introduction of remote devices, and the use of a large amount of data for the analysis of physiological indicators, avoid modifying natural animal behavior and emerges as an important diagnostic and management strategy in the livestock farm, helping in the studies of heat stress, physiological adaptation and, prevalence to hemotropic diseases, which reduce the productivity of the systems.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Big-data]]></kwd>
<kwd lng="es"><![CDATA[Bioclimatología]]></kwd>
<kwd lng="es"><![CDATA[Estrés calórico]]></kwd>
<kwd lng="es"><![CDATA[Fisiología]]></kwd>
<kwd lng="es"><![CDATA[Modelos (Fuente: CAB, FAO)]]></kwd>
<kwd lng="en"><![CDATA[Big-data]]></kwd>
<kwd lng="en"><![CDATA[bioclimatology]]></kwd>
<kwd lng="en"><![CDATA[Colombia]]></kwd>
<kwd lng="en"><![CDATA[heat stress]]></kwd>
<kwd lng="en"><![CDATA[models]]></kwd>
<kwd lng="en"><![CDATA[physiology (Source: CAB, FAO)]]></kwd>
</kwd-group>
</article-meta>
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