<?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>2448-6132</journal-id>
<journal-title><![CDATA[Abanico veterinario]]></journal-title>
<abbrev-journal-title><![CDATA[Abanico vet]]></abbrev-journal-title>
<issn>2448-6132</issn>
<publisher>
<publisher-name><![CDATA[Sergio Martínez González]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-61322020000100112</article-id>
<article-id pub-id-type="doi">10.21929/abavet2020.23</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El día de parto y tamaño del hato impactan indicadores reproductivos en establos familiares]]></article-title>
<article-title xml:lang="en"><![CDATA[Calving day of the week and herd size impact reproductive indicators in small-scale dairy farms]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montiel-Olguín]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa-Martínez]]></surname>
<given-names><![CDATA[Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-López]]></surname>
<given-names><![CDATA[Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada-Cortés]]></surname>
<given-names><![CDATA[Eliab]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Aguilar]]></surname>
<given-names><![CDATA[Marina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vera-Avila]]></surname>
<given-names><![CDATA[Hector]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Centro Nacional de Investigación Disciplinaria en Fisiología y Mejoramiento Animal ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>10</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322020000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322020000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322020000100112&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del presente estudio fue determinar si el día de parto y tamaño del hato impactan el desempeño reproductivo. Durante dieciocho meses se registró información reproductiva proveniente de 23 establos familiares (833 partos) ubicados en Los Altos de Jalisco. Para determinar el efecto de variables independientes (día de parto y tamaño del hato) sobre variables continuas (días a primer servicio (DPS) y días abiertos (DA)) y dicotómicas (asistencia al parto) se utilizaron análisis de varianza y regresión logística, respectivamente. En establos grandes (&#8805;33 vacas) no hubo diferencias (P&gt;0.05) por efecto día de parto sobre DPS. En establos pequeños (&lt;33 vacas), las vacas que parieron en miércoles y jueves tuvieron mayores DPS (106.1±10.1 y 120.8±11.5 (P&lt;0.05). Las vacas que parieron en establos grandes en sábado tuvieron mayor cantidad de DA (136.4±7.0) que cuando los partos se presentaron en otros días (P&lt;0.05). Finalmente, los establos pequeños tuvieron el doble de asistencias al parto (21.0%) que los hatos grandes (10.4%) durante los fines de semana (viernes a domingo) (P&lt;0.05). En conclusión, los establos grandes se ven menos afectados por el efecto día de parto mientras que los establos pequeños reportan el doble de asistencias al parto durante los fines de semana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of the present study was to determine whether the day of the week in which delivery occurs and herd size impact reproductive performance. Reproductive information was recorded for eighteen months from 23 small-scale dairy farms (833 calvings) located in Los Altos of Jalisco state. Analysis of variance and logistic regression analyses were performed to determine the effect of independent variables (day of delivery and herd size) on continuous variables (days at first service (DPS) and days open (DA)) and dichotomous variables (assisted calving), respectively. In big farms (&#8805;33 cows) there were no differences (P&gt; 0.05) due to delivery day on DPS. In small farms (&lt;33 cows), cows that gave birth on Wednesday and Thursday had higher DPS (106.1±10.1 and 120.8±11.5) (P &lt;0.05). Cows that gave birth on Saturday in big farms had higher DA (136.4 ± 7.0) as compared to those who delivered on other days (P &lt;0.05). Finally, small farms had twice as many assisted calvings (21.0%) than large herds (10.4%) during weekends (Friday to Sunday) (P &lt;0.05). In conclusion, big farms are less affected by the delivery day effect while small farms reported twice as many assisted calvings during weekends.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[días a primer servicio]]></kwd>
<kwd lng="es"><![CDATA[días abiertos]]></kwd>
<kwd lng="es"><![CDATA[asistencia al parto]]></kwd>
<kwd lng="es"><![CDATA[lechería familiar]]></kwd>
<kwd lng="en"><![CDATA[days at first service]]></kwd>
<kwd lng="en"><![CDATA[days open]]></kwd>
<kwd lng="en"><![CDATA[assisted calving]]></kwd>
<kwd lng="en"><![CDATA[small-scale dairies]]></kwd>
</kwd-group>
</article-meta>
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