<?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>2007-0705</journal-id>
<journal-title><![CDATA[Nova scientia]]></journal-title>
<abbrev-journal-title><![CDATA[Nova scientia]]></abbrev-journal-title>
<issn>2007-0705</issn>
<publisher>
<publisher-name><![CDATA[Universidad de La Salle Bajío A. C., Coordinación de Investigación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-07052022000100105</article-id>
<article-id pub-id-type="doi">10.21640/ns.v14i28.2965</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Body condition score at lambing did not affect the resumption of ovarian and estrous activity in lactating Pelibuey ewes]]></article-title>
<article-title xml:lang="es"><![CDATA[La condición corporal al parto no afecta el reinicio de la actividad ovárica y estral en ovejas Pelibuey lactantes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orozco Durán]]></surname>
<given-names><![CDATA[Karlos Edmundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Segura Correa]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Ojeda]]></surname>
<given-names><![CDATA[Jessica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera Camacho]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bottini Luzardo]]></surname>
<given-names><![CDATA[María Benedicta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo Facultad de Agrobiología «Presidente Juárez» ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Yucatán Campus Ciencias Biológicas y Agropecuarias ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico del Valle de Morelia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Guerrero  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>14</volume>
<numero>28</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-07052022000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-07052022000100105&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-07052022000100105&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The aim of the study was to evaluate the effect of body condition score (BCS) at lambing over the resumption of ovarian and estrous postpartum activity in lactating Pelibuey ewes. Twenty ewes were assigned to two groups, according to the BCS at lambing: Low BCS (LBC, n = 10) and High BCS (HBC, n = 10). Ovarian and estrous activities were daily monitored from day 3 postpartum until the first estrous or 90 days postpartum. Continuous variables were analyzed using Student´s t test and binary responses with the exact Fisher test. No significant effect of BCS at lambing on ewes in estrous, lambing to first estrous interval, estrous length, and estrous cycle length, preovulatory follicles at estrous, the maximum follicular diameter at estrous day or ovulation rate was observed. However, the lambing to first preovulatory follicle interval was shorter in the HBC group (HBC = 6.2 ± 2.6 vs LBC = 10.8 ± 4.5 d; P &lt; 0.05). The lambing to first corpus luteum intervals were similar between groups, but without estrous expression. The function of the first corpus luteum postpartum was similar in both groups. BCS at lambing did not affect the resumption of ovarian and estrous activity postpartum in lactating Pelibuey ewes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del estudio fue evaluar el efecto de la condición corporal (BCS) al momento del parto en la reanudación de la actividad ovárica y estral de las ovejas Pelibuey lactantes. De acuerdo con la condición corporal postparto, veinte ovejas fueron separadas en un grupo de baja BCS (LBC, n = 10) y alta BCS (HBC; n = 10). Las actividades ovárica y estral se observaron diariamente, desde el tercer día postparto hasta el primer estro o 90 días postparto. Las variables continuas se analizaron mediante la prueba t de Student y las respuestas binarias con la prueba exacta de Fisher. No se observó ningún efecto significativo de la BCS al parto, sobre la presencia de celo, intervalo parto-primer celo, duración del estro y duración del ciclo estral, presencia de folículos preovulatorios en el celo, diámetro folicular máximo en el día del celo o tasa de ovulación. Sin embargo, el intervalo entre el parto y el primer folículo preovulatorio fue más corto en el grupo HBC (HBC = 6.2 ± 2.6 vs. LBC = 10.8 ± 4.5 d; P &lt; 0.05). El intervalo entre el parto y el primer cuerpo lúteo fueron similares entre los grupos, pero sin expresión de celo. La función del primer cuerpo lúteo postparto fue similar en ambos grupos. La BCS en el parto no afectó la reanudación de la actividad ovárica y estral postparto en ovejas Pelibuey lactantes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[sheep]]></kwd>
<kwd lng="en"><![CDATA[follicular development]]></kwd>
<kwd lng="en"><![CDATA[ovulation rate]]></kwd>
<kwd lng="en"><![CDATA[live weight]]></kwd>
<kwd lng="en"><![CDATA[sexual behavior]]></kwd>
<kwd lng="en"><![CDATA[tropical]]></kwd>
<kwd lng="en"><![CDATA[body condition]]></kwd>
<kwd lng="en"><![CDATA[lambing]]></kwd>
<kwd lng="en"><![CDATA[ovarian activity]]></kwd>
<kwd lng="en"><![CDATA[estrous activity]]></kwd>
<kwd lng="en"><![CDATA[estrous]]></kwd>
<kwd lng="en"><![CDATA[corpus luteum]]></kwd>
<kwd lng="en"><![CDATA[Pelibuey]]></kwd>
<kwd lng="en"><![CDATA[lactating]]></kwd>
<kwd lng="en"><![CDATA[animals]]></kwd>
<kwd lng="es"><![CDATA[ovejas]]></kwd>
<kwd lng="es"><![CDATA[desarrollo folicular]]></kwd>
<kwd lng="es"><![CDATA[tasa de ovulación]]></kwd>
<kwd lng="es"><![CDATA[peso vivo]]></kwd>
<kwd lng="es"><![CDATA[comportamiento sexual]]></kwd>
<kwd lng="es"><![CDATA[trópico]]></kwd>
<kwd lng="es"><![CDATA[condición corporal]]></kwd>
<kwd lng="es"><![CDATA[parto]]></kwd>
<kwd lng="es"><![CDATA[actividad ovárica]]></kwd>
<kwd lng="es"><![CDATA[actividad estral]]></kwd>
<kwd lng="es"><![CDATA[celo]]></kwd>
<kwd lng="es"><![CDATA[cuerpo lúteo]]></kwd>
<kwd lng="es"><![CDATA[Pelibuey]]></kwd>
<kwd lng="es"><![CDATA[lactancia]]></kwd>
<kwd lng="es"><![CDATA[animales]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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