<?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>2079-3480</journal-id>
<journal-title><![CDATA[Cuban Journal of Agricultural Science]]></journal-title>
<abbrev-journal-title><![CDATA[Cuban J. Agric. Sci.]]></abbrev-journal-title>
<issn>2079-3480</issn>
<publisher>
<publisher-name><![CDATA[Editorial del Instituto de Ciencia Animal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2079-34802019000200109</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Parity does not affect the reproductive response of Suizo Americano cows submitted to embryo transference in tropical areas of Guerrero]]></article-title>
<article-title xml:lang="es"><![CDATA[La paridad no afecta la respuesta reproductiva de vacas Suizo Americano sometidas a transferencia de embriones en el trópico de Guerrero]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García y González]]></surname>
<given-names><![CDATA[Ethel C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza Medel]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pineda Burgos]]></surname>
<given-names><![CDATA[Blanca C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero Rodríguez]]></surname>
<given-names><![CDATA[Perla I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Ruiz]]></surname>
<given-names><![CDATA[P.E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vicente Pérez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valencia Franco]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ponce]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Guerrero Escuela Superior de Medicina Veterinaria y Zootecnia No. 3 ]]></institution>
<addr-line><![CDATA[Tecpan de Galeana Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Guerrero Facultad de Medicina Veterinaria y Zootecnia No. 2 ]]></institution>
<addr-line><![CDATA[Cuajinicuilapa Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de la Costa Sur ]]></institution>
<addr-line><![CDATA[Autlán de Navarro Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Facultad de Agrohidráulica ]]></institution>
<addr-line><![CDATA[Tlatlahuquitepec Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>53</volume>
<numero>2</numero>
<fpage>109</fpage>
<lpage>117</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802019000200109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802019000200109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802019000200109&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Recipient cow is the key to success in embryo transfer (ET) programs in cattle. Therefore, it is necessary to know the factors that influence on its reproductive potential. It is considered that multiparous cows have a better response to the ET program than nulliparous cows. The objective of this study was to evaluate the effect of parity on the reproductive efficiency of multiparous and nulliparous cows in a fresh ET program. Twenty-six recipient cows of Suizo Americano breed were divided into two experimental groups (n = 13/each) according to their parity (multiparous and nulliparous). Donor cows underwent a synchronization and superovulation program. Subsequently, the recipient cows were treated with fresh ET. The percentage of cows in estrus was higher on day 1 in multiparous cows than in nulliparous cows (P &lt;0.05). On the other hand, gestation percentage, estrus time, embryo stage and pregnancy percentage per uterine horn were not significantly affected among the experimental groups (P&gt; 0.05). In conclusion, parity did not affect the reproductive response of multiparous and nulliparous recipient cows subjected to a fresh ET program under tropical conditions.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La vaca receptora es la clave del éxito en programas de transferencia de embriones (TE) en el ganado bovino. Por lo tanto, es necesario conocer los factores que influyen en su potencial reproductivo. Se considera que las vacas multíparas presentan una mejor respuesta al programa de TE que las vacas nulíparas. El objetivo del presente estudio fue evaluar el efecto de la paridad en la eficiencia reproductiva de vacas multíparas y nulíparas en un programa de TE en fresco. Veintiséis vacas receptoras de raza Suizo Americano se dividieron en dos grupos experimentales (n = 13/c.u.) de acuerdo con su paridad (multíparas y nulíparas). Las vacas donadoras se sometieron a un programa de sincronización y superovulación, y posteriormente se aplicó la TE en fresco a las vacas receptoras. El porcentaje de vacas en estro fue mayor en el día 1 en las vacas multíparas que en las nulíparas (P&lt;0.05). Por su parte, el porcentaje de gestación, la hora del estro, el estadio del embrión y el porcentaje de gestación por cuerno uterino no se afectaron significativamente entre los grupos experimentales (P&gt;0.05). En conclusión, la paridad no afectó la respuesta reproductiva de las vacas receptoras multíparas y nulíparas sometidas a un programa de TE en fresco en condiciones tropicales.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[embryos]]></kwd>
<kwd lng="en"><![CDATA[progestogens]]></kwd>
<kwd lng="en"><![CDATA[estrus response]]></kwd>
<kwd lng="en"><![CDATA[recipient and donor cows]]></kwd>
<kwd lng="es"><![CDATA[embriones]]></kwd>
<kwd lng="es"><![CDATA[progestágenos]]></kwd>
<kwd lng="es"><![CDATA[respuesta estral]]></kwd>
<kwd lng="es"><![CDATA[vacas receptoras y donadoras]]></kwd>
</kwd-group>
</article-meta>
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