<?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>S2007-07052022000100103</article-id>
<article-id pub-id-type="doi">10.21640/ns.v14i28.2960</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Peso vivo de la oveja primala al primer empadre, y productividad en sus dos primeros partos]]></article-title>
<article-title xml:lang="en"><![CDATA[Body weight of the yearling ewe at first breeding program and productivity in its first two lambing]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guzmán Martínez]]></surname>
<given-names><![CDATA[Vanessa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo Linares]]></surname>
<given-names><![CDATA[Erika Belem]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hinojosa Cuéllar]]></surname>
<given-names><![CDATA[José Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliva Hernández]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Popular de la Chontalpa  ]]></institution>
<addr-line><![CDATA[ Tabasco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental Huimanguillo ]]></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=S2007-07052022000100103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-07052022000100103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-07052022000100103&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El peso vivo de las ovejas refleja indirectamente su tamaño y composición corporal. Su conocimiento al inicio de un proceso reproductivo y productivo puede ser de gran valor para determinar la productividad futura de las ovejas. El objetivo del estudio fue establecer la influencia del peso vivo y las medidas zoométricas de ovejas primalas Blackbelly x Pelibuey al inicio del apareamiento sobre su eficiencia productiva y reproductiva en sus dos primeros ciclos productivos. Se utilizaron los registros productivos y reproductivos de 26 ovejas alimentadas con base en el pastoreo y una complementación alimenticia. El factor de estudio fue la categoría de peso vivo de ovejas primalas (ligeras, 20.3 kg; 59 % del peso vivo de ovejas multíparas; n = 13 y medianas 24.3 kg; 70 % del peso vivo de ovejas multíparas; n = 13). Las variables respuesta fueron: peso vivo, ganancia diaria de peso, número de corderos y peso de la camada (al nacimiento y al destete); parámetros reproductivos relacionados con la concepción, duración de gestación y el parto y total de kilogramos de cordero al destete e ingresos brutos (MEX $) por la venta del total de kilogramos de cordero al destete en los dos primeros ciclos productivos. La categoría de peso vivo de las ovejas afectó el cambio de peso vivo y la ganancia diaria de peso durante el empadre (P &lt; 0.05), así como el peso de la camada al destete durante la primera lactancia y los intervalos entre el empadre y primer estro, el empadre y la concepción, primer parto a la concepción, y entre el primero y segundo parto (P &lt; 0.05). Durante el segundo ciclo productivo la eficiencia productiva de las ovejas no fue afectada por la categoría de peso vivo (P &gt; 0.05). Sin embargo, las ovejas medianas fueron superiores a las ovejas ligeras en el total de kilogramos de cordero al destete durante los dos primeros ciclos productivos. La categoría de peso vivo con la que inician su primer empadre las ovejas afectó el comportamiento reproductivo y productivo durante el primer empadre y primer ciclo productivo. La eficiencia productiva de las ovejas no fue afectada por la categoría de peso vivo durante el segundo ciclo productivo. Un mayor peso vivo y talla corporal en las ovejas permitió un menor número de días para manifestar el estro y lograr la concepción en el primer empadre, así mismo, favoreció la producción de camadas al destete con mayor peso en la primera lactancia, pero no en la segunda. Sin embargo, el total de kilogramos de cordero al destete durante los dos primeros ciclos productivos fue mayor en las ovejas medianas con respecto a las ligeras.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The body weight of the ewes indirectly reflects their size and body composition. Its knowledge at the beginning of a reproductive and productive process can be of great value in determining the future productivity of the ewes. The aim of this study was to determine the effect of the body weight and the zoometric measurements of Blackbelly x Pelibuey yearling ewes at the beginning of mating on their productive and reproductive efficiency in their first two productive cycles. The productive and reproductive records of 26 ewes fed based on grazing and food supplementation were used. The study factor was the body weight category of yearling ewes (light, 20.3 kg; 59 % of body weight multiparous ewes; n = 13 and medium 24.3 kg; 70 % of body weight multiparous ewes; n = 13). The response variables were: body weight, daily weight gain, number of lambs and litter weight (at birth and weaning); reproductive parameters related to conception, gestation duration and lambing and total kilograms of lamb at weaning and gross income (MEX $) from the sale of total kilograms of lamb at weaning in the first two production cycles. The body weight category of ewes affected the change in body weight and daily weight gain during breeding (P &lt; 0.05), as well as the weight of the litter at weaning during the first lactation and the intervals between mating and first estrus, mating, and conception, first lambing at conception, and between the first and second lambing (P &lt; 0.05). During the second production cycle, the productive efficiency of the ewes was not affected by the body weight category (P &gt; 0.05). The body weight category with which the ewes start their first breeding affected the reproductive and productive efficiency during the first breeding and first productive cycle. The productive efficiency of the ewes was not affected by the body weight category during the second production cycle. Higher body weight and body size in ewes allowed fewer days to manifest estrus and achieve conception in the first breeding; likewise, it favored the production of litters at weaning with greater weight in the first lactation, but not in the second. However, the total kilograms of lamb at weaning during the first two production cycles was higher in medium ewes compared to light ewes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[camada]]></kwd>
<kwd lng="es"><![CDATA[eficiencia productiva]]></kwd>
<kwd lng="es"><![CDATA[crecimiento]]></kwd>
<kwd lng="es"><![CDATA[lactancia]]></kwd>
<kwd lng="es"><![CDATA[ovino de pelo]]></kwd>
<kwd lng="es"><![CDATA[posparto]]></kwd>
<kwd lng="es"><![CDATA[reproducción]]></kwd>
<kwd lng="es"><![CDATA[trópico húmedo]]></kwd>
<kwd lng="es"><![CDATA[ciclo productivo]]></kwd>
<kwd lng="es"><![CDATA[ovejas]]></kwd>
<kwd lng="es"><![CDATA[Pelibuey]]></kwd>
<kwd lng="es"><![CDATA[Blackbelly]]></kwd>
<kwd lng="es"><![CDATA[concepción]]></kwd>
<kwd lng="es"><![CDATA[gestación]]></kwd>
<kwd lng="es"><![CDATA[cordero]]></kwd>
<kwd lng="es"><![CDATA[destete]]></kwd>
<kwd lng="es"><![CDATA[estro]]></kwd>
<kwd lng="es"><![CDATA[producción]]></kwd>
<kwd lng="en"><![CDATA[litter]]></kwd>
<kwd lng="en"><![CDATA[productive efficiency]]></kwd>
<kwd lng="en"><![CDATA[growth]]></kwd>
<kwd lng="en"><![CDATA[lactation]]></kwd>
<kwd lng="en"><![CDATA[hair sheep]]></kwd>
<kwd lng="en"><![CDATA[postpartum]]></kwd>
<kwd lng="en"><![CDATA[reproduction]]></kwd>
<kwd lng="en"><![CDATA[humid tropic]]></kwd>
<kwd lng="en"><![CDATA[productive cycle]]></kwd>
<kwd lng="en"><![CDATA[sheep]]></kwd>
<kwd lng="en"><![CDATA[Pelibuey]]></kwd>
<kwd lng="en"><![CDATA[Blackbelly]]></kwd>
<kwd lng="en"><![CDATA[conception]]></kwd>
<kwd lng="en"><![CDATA[gestation]]></kwd>
<kwd lng="en"><![CDATA[mutton]]></kwd>
<kwd lng="en"><![CDATA[weaning]]></kwd>
<kwd lng="en"><![CDATA[estrus]]></kwd>
<kwd lng="en"><![CDATA[production]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alabart]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Lahoz]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Folch]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Delahaut]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Colemonts]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Diagnóstico precoz de gestación en ganado ovino mediante un kit enzimoinmunloanálisis (EIA) de la glicoproteína asociada a la gestación (PAG) plasmática]]></source>
<year>2010</year>
<conf-name><![CDATA[ XXXVCongreso de la SEOC]]></conf-name>
<conf-loc>Valladolid, España </conf-loc>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ángeles]]></surname>
<given-names><![CDATA[H. J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Radic]]></surname>
<given-names><![CDATA[S. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Vera]]></surname>
<given-names><![CDATA[A. M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Echeverría]]></surname>
<given-names><![CDATA[P. R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Castelán-Ortega]]></surname>
<given-names><![CDATA[O. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[P. A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[R. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of live weight pre- and post-lambing on milk production of East Friesian sheep]]></article-title>
<source><![CDATA[Italian Journal of Animal Science]]></source>
<year>2018</year>
<volume>17</volume>
<page-range>184-94</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cadenas]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinojosa]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Suplementación postdestete de corderas Pelibuey x Blackbelly en pastoreo en el trópico húmedo]]></article-title>
<source><![CDATA[Archivos de Zootecnia]]></source>
<year>2010</year>
<volume>59</volume>
<numero>226</numero>
<issue>226</issue>
<page-range>303-6</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cadenas-Cruz]]></surname>
<given-names><![CDATA[P. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Productivity of Blackbelly ewes and their hybrid litter under grazing]]></article-title>
<source><![CDATA[Journal of Animal Veterinary Advances]]></source>
<year>2012</year>
<volume>11</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>97-102</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carrillo]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura-Correa]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Sarmiento]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Algunos factores que determinan el período de gestación en ovejas de pelo]]></article-title>
<source><![CDATA[Revista Biomédica]]></source>
<year>1997</year>
<volume>8</volume>
<page-range>15-20</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez R.]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Castellanos R.]]></surname>
<given-names><![CDATA[A.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez M.]]></surname>
<given-names><![CDATA[P. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Producción de las ovejas Pelibuey pre y postparto alimentadas con diferentes aportes nutricionales]]></article-title>
<source><![CDATA[Técnica Pecuaria en México]]></source>
<year>1995</year>
<volume>33</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>183-95</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chay-Canul]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ayala-Burgos]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kú-Vera]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Magaña-Monforte]]></surname>
<given-names><![CDATA[J. G]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrell]]></surname>
<given-names><![CDATA[C. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metabolizable energy intake and changes in body weight and body condition of Pelibuey ewes fed three levels of roughage diets under tropical conditions]]></article-title>
<source><![CDATA[Tropical and Subtropical Agroecosystems]]></source>
<year>2011</year>
<volume>14</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>777-86</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chay-Canul]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Magaña-Monforte]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Chizzotti]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Piñeiro-Vázquez]]></surname>
<given-names><![CDATA[A. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Canul-Solís]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ayala-Burgos]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ku-Vera]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Tedeschi]]></surname>
<given-names><![CDATA[L. O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Requerimientos energéticos de ovinos de pelo en las regiones tropicales de Latinoamérica. Revisión]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Pecuarias]]></source>
<year>2016</year>
<volume>7</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>105-25</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chay-Canul]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Herrera]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Magaña-Monforte]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Macias-Cruz]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Luna-Palomera]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Productividad de ovejas Pelibuey y Katahdin en el trópico húmedo]]></article-title>
<source><![CDATA[Ecosistemas y Recursos Agropecuarios]]></source>
<year>2019</year>
<volume>6</volume>
<numero>16</numero>
<issue>16</issue>
<page-range>159-65</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Edmonson]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Roberts]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Baird]]></surname>
<given-names><![CDATA[A. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Bychawski]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Pugh]]></surname>
<given-names><![CDATA[D. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Theryogenology of sheep and goats]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Pugh DG]]></surname>
<given-names><![CDATA[D. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Baird]]></surname>
<given-names><![CDATA[A. N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sheep and Goat Medicine]]></source>
<year>2012</year>
<page-range>150-230</page-range><publisher-loc><![CDATA[Missouri, USA ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier Saunders]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Osorio]]></surname>
<given-names><![CDATA[I. del C.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroz-Valiente]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparación de métodos para evaluar la productividad de ovejas de pelo]]></article-title>
<source><![CDATA[Investigación y Ciencia de la Universidad Autónoma de Aguascalientes]]></source>
<year>2016</year>
<volume>67</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>12-8</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Osorio]]></surname>
<given-names><![CDATA[I. del C.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Osorio-Arce]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Garduño]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influencia materna en el crecimiento predestete y características de la canal de corderos de pelo]]></article-title>
<source><![CDATA[Ecosistemas y Recursos Agropecuarios]]></source>
<year>2017</year>
<volume>4</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>51-63</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González-Garduño]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Arece-García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comportamiento productivo y reproductivo de ovinos Pelibuey en un sistema de pariciones aceleradas con tres épocas de empadre al año]]></article-title>
<source><![CDATA[Zootecnia Tropical]]></source>
<year>2010</year>
<volume>28</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>51-6</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González R.]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Higuera M.]]></surname>
<given-names><![CDATA[M. de J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández A.]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Estrada B.]]></surname>
<given-names><![CDATA[P. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez O.]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Colín N.]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cienfuegos R.]]></surname>
<given-names><![CDATA[E. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eficiencia productiva y punto de equilibrio para el costo del kilogramo de cordero al destete en ovinos de Pelo en el Noreste de México]]></article-title>
<source><![CDATA[Livestock Research for Rural Development]]></source>
<year>2003</year>
<volume>15</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1-13</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goodman]]></surname>
<given-names><![CDATA[R. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Inskeep]]></surname>
<given-names><![CDATA[E. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Control of the ovarian cycle of the sheep]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Zeleznik]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
</person-group>
<collab>T. M. Plant TM</collab>
<source><![CDATA[Knobil and Neill's physiology of reproduction]]></source>
<year>2015</year>
<edition>4th ed.</edition>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández-Marín]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Pro-Martínez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cortez-Romero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Hernández]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera-Corredor]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallegos-Sánchez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Inducción de la ovulación con efecto macho y un reconstituyente energético en ovejas Pelibuey prepúberes]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2016</year>
<volume>50</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>811-23</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura-Correa]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comportamiento productivo de corderos F1 Pelibuey x Blackbelly y cruces con Dorper y Katahdin en un sistema de producción del trópico húmedo de Tabasco, México]]></article-title>
<source><![CDATA[Archivos de Medicina Veterinaria]]></source>
<year>2013</year>
<volume>45</volume>
<page-range>135-43</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura-Correa]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Importancia del peso de la oveja al parto en el comportamiento predestete de corderos Pelibuey]]></article-title>
<source><![CDATA[Revista de Investigaciones Veterinarias del Perú]]></source>
<year>2019</year>
<volume>30</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>1569-78</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<collab>Instituto Nacional de Estadística y Geografía</collab>
<article-title xml:lang=""><![CDATA[Anuario estadístico y geográfico de Tabasco]]></article-title>
<source><![CDATA[]]></source>
<year>2017</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[INEGI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Karaku&#351;]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Atmaca]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El efecto de la condición corporal de la oveja en el parto en el crecimiento de los corderos y la gravedad específica del calostro]]></article-title>
<source><![CDATA[Archives Animal Breeding]]></source>
<year>2016</year>
<volume>59</volume>
<page-range>107-12</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kenyon]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Blair]]></surname>
<given-names><![CDATA[H. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Jenkinson]]></surname>
<given-names><![CDATA[C. M. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Morris]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Mackenzie]]></surname>
<given-names><![CDATA[D. D. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Peterson]]></surname>
<given-names><![CDATA[S. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Firth]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Johnston]]></surname>
<given-names><![CDATA[P. L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of ewe size and nutritional regimen beginning in early pregnancy on ewe and lamb performance to weaning]]></article-title>
<source><![CDATA[New Zealand Journal of Agricultural Research]]></source>
<year>2009</year>
<volume>52</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>203-12</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lodge]]></surname>
<given-names><![CDATA[G. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Heaney]]></surname>
<given-names><![CDATA[D. P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Energy cost of pregnancy in single- and twin-bearing ewes]]></article-title>
<source><![CDATA[Canadian Journal of Animal Science]]></source>
<year>1973</year>
<volume>53</volume>
<page-range>479-89</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lugo M.]]></surname>
<given-names><![CDATA[V. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Efecto de tres sistemas de manejo postparto sobre la sobrevivencia perinatal en corderos Pelibuey y Blackbelly]]></source>
<year>2005</year>
<publisher-name><![CDATA[Universidad de Guadalajara]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Luna-Palomera]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ojeda-Robertos]]></surname>
<given-names><![CDATA[N. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Peralta-Torres]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías-Cruz]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez-Dávila]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura-Correa]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of some reproductive traits of Pelibuey ewes under humid tropical conditions of Mexico]]></article-title>
<source><![CDATA[Revista Brasileira de Zootecnia]]></source>
<year>2019</year>
<volume>48</volume>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Magaña-Monforte]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Huchin C.]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ake L.]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura C.]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A field study of reproductive performance and productivity of Pelibuey ewes in Southeastern Mexico]]></article-title>
<source><![CDATA[Tropical Animal Health and Production]]></source>
<year>2013</year>
<volume>45</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1771-6</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez A.]]></surname>
<given-names><![CDATA[A. M. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bores Q.]]></surname>
<given-names><![CDATA[R. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Castellanos R.]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Zoometría y predicción de la composición corporal de la borrega Pelibuey]]></article-title>
<source><![CDATA[Técnica Pecuaria en México]]></source>
<year>1987</year>
<volume>25</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>72-84</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Milton]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estadística para biología y ciencias de la salud]]></source>
<year>2007</year>
<edition>3ra Ed</edition>
<publisher-loc><![CDATA[Madrid, España ]]></publisher-loc>
<publisher-name><![CDATA[Mc Graw-Hill Interamericana]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zulueta-Rodríguez]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Evaluación reproductiva de ovejas Pelibuey durante un empadre controlado]]></source>
<year>2008</year>
<conf-name><![CDATA[ Memoria del 20° Encuentro Nacional de Investigación Científica y Tecnológica del Golfo de México]]></conf-name>
<conf-loc>Cd. Madero, Tamaulipas, México </conf-loc>
<page-range>26-30</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pascual-Córdova]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva-Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Sánchez]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Hernández]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Suárez-Oporta]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Hinojosa-Cuéllar]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Crecimiento postdestete y eficiencia reproductiva de corderas Pelibuey con un sistema de alimentación intensiva]]></article-title>
<source><![CDATA[Archivos de Medicina Veterinaria]]></source>
<year>2009</year>
<volume>41</volume>
<page-range>205-12</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez G.]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Bue H.]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respuesta de la oveja Pelibuey gestante en confinamiento a dos niveles de proteína y de energía en la dieta]]></article-title>
<source><![CDATA[Técnica Pecuaria en México]]></source>
<year>1986</year>
<volume>51</volume>
<page-range>96-103</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez-Valenzuela]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Chay-Canul]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Herrera]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Salazar-Cuytun]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Piñeiro-Vázquez]]></surname>
<given-names><![CDATA[A. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Casanova-Lugo]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez-Martínez]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Predicción del contenido energético de la carcasa de las ovejas Pelibuey por medio de mediciones de ultrasonido]]></article-title>
<source><![CDATA[Ecosistemas y Recursos Agropecuarios]]></source>
<year>2017</year>
<volume>4</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>543-8</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roldán-Roldán]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Martínez]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Río-Araiza]]></surname>
<given-names><![CDATA[V. Del.]]></given-names>
</name>
<name>
<surname><![CDATA[Berruecos-Villalobos]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Zarco-Quintero]]></surname>
<given-names><![CDATA[L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Valencia]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Edad a la pubertad en corderas Pelibuey, hijas de ovejas con actividad reproductiva estacional o continua, nacidas fuera de temporada]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>2016</year>
<volume>50</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>441-8</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sarmiento]]></surname>
<given-names><![CDATA[F. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura C.]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Rojas R.]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cambios de peso en ovejas Pelibuey y Blackbelly y su relación con el peso vivo predestete de las crías]]></article-title>
<source><![CDATA[Agrociencia]]></source>
<year>1998</year>
<volume>32</volume>
<page-range>119-23</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="book">
<collab>SAS</collab>
<source><![CDATA[Statistical Analysis System. 2002. SAS/STAT User&#8217;s Guide (Release 9.3)]]></source>
<year>2002</year>
<publisher-loc><![CDATA[Cary, North Carolina, USA ]]></publisher-loc>
<publisher-name><![CDATA[SAS Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez D.]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Padilla R.]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ledezma T.]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Del Bosque G.]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnóstico de gestación temprana por medio de ultrasonografía en ovejas de pelo]]></article-title>
<source><![CDATA[CienciaUANL]]></source>
<year>2013</year>
<volume>16</volume>
<numero>60</numero>
<issue>60</issue>
<page-range>78-85</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tec Canché]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Magaña M.]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Segura C.]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Environmental effects on productive and reproductive performance of Pelibuey ewes in Southeastern México]]></article-title>
<source><![CDATA[Journal of Applied Animal Research]]></source>
<year>2016</year>
<volume>44</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>508-12</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thomson]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Meyer]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Body condition scoring of sheep]]></source>
<year>1994</year>
<publisher-loc><![CDATA[Oregon, USA ]]></publisher-loc>
<publisher-name><![CDATA[Oregon State University Extension Service]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Valencia]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Gonzalez P.]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pelibuey sheep in Mexico]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Fitzhugh]]></surname>
<given-names><![CDATA[H. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bradford]]></surname>
<given-names><![CDATA[G. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Hair sheep of western Africa and the Americas. A genetic resource for the tropics]]></source>
<year>2018</year>
<publisher-loc><![CDATA[FL, USA ]]></publisher-loc>
<publisher-name><![CDATA[CRC Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zamit S.]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[López C.]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Factores que afectan la duración del parto en ovejas y el posterior vigor de los corderos]]></source>
<year>2009</year>
<publisher-loc><![CDATA[Montevideo, Uruguay ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de la República]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zavala E.]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz O.]]></surname>
<given-names><![CDATA[J. R]]></given-names>
</name>
<name>
<surname><![CDATA[Ramón U.]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Montalvo M.]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sierra V.]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sanginés G.]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pubertad en hembras de cinco razas ovinas de pelo en condiciones de trópico seco]]></article-title>
<source><![CDATA[Zootecnia Tropical]]></source>
<year>2008</year>
<volume>26</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>465-73</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
