<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662016000400036</article-id>
<article-id pub-id-type="doi">10.15174/au.2016.949</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Largo de lactancia (LL) e intervalo destete servicio (IDS) y su relación con la productividad subsecuente de la hembra porcina en un sistema de producción intensivo]]></article-title>
<article-title xml:lang="en"><![CDATA[Relationship between lactation length and weaning service interval and subsequent sow productivity traits in an intensive swine production system]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kinejara Espinoza]]></surname>
<given-names><![CDATA[Ana Laura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barreras Serrano]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soto Ávila]]></surname>
<given-names><![CDATA[José Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez López]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Haro]]></surname>
<given-names><![CDATA[José G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Baja California Instituto de Ciencias Agrícolas ]]></institution>
<addr-line><![CDATA[ Baja California]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Baja California Instituto de Investigaciones en Ciencias Veterinarias ]]></institution>
<addr-line><![CDATA[Mexicali Baja California]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<volume>26</volume>
<numero>4</numero>
<fpage>36</fpage>
<lpage>43</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662016000400036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662016000400036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662016000400036&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se investigó la relación de largo de lactancia (LL) e intervalo destete servicio (IDS) con tamaño de camada al nacer (TCN), total de nacidos vivos (TNV), peso al nacer promedio (PNP) y peso al destete promedio (PDP). La influencia de componentes ambientales y el efecto lineal y cuadrático de LL e IDS sobre la productividad subsecuente fue analizada por análisis de varianza (ANOVA). El 24.4% de las hembras manifestaron estro entre los 5 a 7 días del posdestete. Hembras con número de parto (NP) &#8804; 2 mostraron diferentes (p &lt; 0.05) valores de TNV entre clases de IDS. Se observaron IDS superiores a 7 días cuando LL &#8804; 21 días. Por cada día de incremento en LL, el subsecuente TNV disminuyó en 0.066 lechones. Además, si se incrementa IDS de 7 a 12 días, con LL = 21 días, el incremento en TNV sería de 0.07 lechones. También por cada día de incremento en LL, el subsecuente PDP aumentaría en 0.235 kg.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Relationship between lactation length (LL), weaning service interval (WSI) and number of piglets born (NPB), piglets born alive (PBA), birth weight (BW) and weaning weight (WW) were investigated. Influence of environmental components and linear and quadratic effects of LL, and WSI on subsequent productivity were analyzed by ANOVA. Only 24.4% of females showed estrus between 5 to 7 days after weaning. In the NP &#8804; 2 females group, PBA values were different (p &lt; 0.05) to WSI class. WSI higher than 7 days were observed when LL &#8804; 21 days. A one-day increase in LL resulted in a decrease in 0.066 piglets for subsequent PBA. If WSI increases from 7 to 12 days and LL was fixed in 21 days, increase in piglets was of 0.07 for PBA. Besides, for each one-day increase on LL, a 0.235 kg increase may be expected in subsequent WW.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cerdos]]></kwd>
<kwd lng="es"><![CDATA[largo de lactancia (LL)]]></kwd>
<kwd lng="es"><![CDATA[intervalo destete servicio (IDS)]]></kwd>
<kwd lng="es"><![CDATA[tamaño de camada (TC)]]></kwd>
<kwd lng="en"><![CDATA[Swine]]></kwd>
<kwd lng="en"><![CDATA[lactation length (LL)]]></kwd>
<kwd lng="en"><![CDATA[weaning service interval (WSI)]]></kwd>
<kwd lng="en"><![CDATA[litter size (LZ)]]></kwd>
</kwd-group>
</article-meta>
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