<?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>0120-0690</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Pecuarias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Colom Cienc Pecua]]></abbrev-journal-title>
<issn>0120-0690</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-06902020000300172</article-id>
<article-id pub-id-type="doi">10.17533/udea.rccp.v33n3a01</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Influence of different protein supplements on the recovery and in vitro maturation of bovine oocytes]]></article-title>
<article-title xml:lang="es"><![CDATA[Influencia de diferentes suplementos proteicos en la recuperación y maduración in vitro de ovocitos bovinos]]></article-title>
<article-title xml:lang="pt"><![CDATA[Influência de diferentes suplementações proteicas sobre a recuperação e maturação in vitro de oócitos bovinos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernandes-França]]></surname>
<given-names><![CDATA[Pedro H]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira-Santos]]></surname>
<given-names><![CDATA[Maria V]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira-Lira]]></surname>
<given-names><![CDATA[Gabriela P]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Azevedo-Borges]]></surname>
<given-names><![CDATA[Alana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernandes-Pereira]]></surname>
<given-names><![CDATA[Alexsandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Federal Rural do Semi-Árido Centro de Ciências Biológicas e da Saúde Departamento de Biociências]]></institution>
<addr-line><![CDATA[Mossoró Rio Grande do Norte]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>33</volume>
<numero>3</numero>
<fpage>172</fpage>
<lpage>181</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-06902020000300172&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-06902020000300172&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-06902020000300172&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Oocyte quality and maturation are influenced by protein supplementation.  Objective: To evaluate the influence of fetal bovine serum (FBS) and bovine serum albumin (BSA) concentrations on the recovery and in vitro maturation (IVM) of bovine oocytes.  Methods: The study was divided into Stage 1 (oocyte recovery), and Stage 2 (IVM). In the first stage, three experiments were conducted according to the recovery (R) medium used: (R1) 10 vs. 20% FBS; (R2) 5 vs. 10% BSA; and (R3) the best results from R1, R2, and the combination of FBS+BSA (5+5%). Within the second stage, the maturation medium was supplemented according to three experiments: (M1) 5 vs. 10% FBS; (M2) 0.4 vs. 0.8% BSA; and (M3) better results of M1, M2, and the combination of FBS+BSA (5+0.8%).  Results: In Stage 1 (R1 and R2), the media with 10% FBS and 10% BSA showed better oocyte quality results and were defined for experiment R3. In R3, the 10% FBS and the combination of FBS+BSA (5+5%) allowed recovery of better-quality oocytes. In Stage 2 (M1 and M2), media with both levels of FBS (5 and 10%) and 0.8% BSA were defined as better according to the maturation and viability rates of cumulus cells, so they were defined for experiment M3. In M3, no difference was noted among the supplements.  Conclusions: For oocyte recovery, 10% FBS and the combination of FBS+BSA (5+5%) can be used to obtain immature oocytes. For the in vitro maturation, FBS (both levels, 5 and 10%) and BSA (0.8%) can be used alone or in combination.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: La calidad y maduración de los ovocitos son influenciados por la suplementación proteica.  Objetivo: Evaluar la influencia de concentraciones de suero fetal bovino (FBS) y albúmina sérica bovina (BSA) en la recuperación y maduración in vitro (IVM) de ovocitos bovinos.  Métodos: El estudio se dividió en Etapa 1 (recuperación de ovocitos) y Etapa 2 (IVM). En la primera etapa, tres experimentos se realizaron de acuerdo con el medio de recuperación: (R1) 10 vs. 20% FBS; (R2) 5 vs. 10% BSA; y (R3) los mejores resultados de R1, R2 y la combinación de FBS+BSA (5+5%). En la segunda etapa, el medio de maduración fue suplementado para tres experimentos: (M1) 5 vs. 10% FBS; (M2) 0,4 vs. 0,8% BSA; y (M3) mejores resultados de M1, M2 y la combinación de FBS+BSA (5+0,8%).  Resultados: En la Etapa 1 (R1 y R2), los medios con 10% FBS y 10% BSA mostraron mejores resultados de calidad oocitaria y fueron definidos para el experimento R3. En R3, 10% FBS y la combinación de FBS+BSA (5+5%) permitieron la recuperación de ovocitos de mejor calidad. En la Etapa 2 (M1 y M2), los medios con ambos niveles de FBS (5 y 10%) y 0,8% de BSA se definieron como mejores de acuerdo con las tasas de maduración y viabilidad de las células del cumulus, por lo que se definieron para el experimento M3. En M3, no se observó diferencia entre los suplementos.  Conclusiones: Para la recuperación de ovocitos, se puede utilizar 10% de FBS y la combinación de FBS+BSA (5+5%) para obtener ovocitos inmaduros. Para la maduración in vitro, FBS (ambos niveles, 5 y 10%) y BSA (0,8%) se pueden usar solos o en combinación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Antecedentes: A qualidade e a maturação de oócitos são influenciadas pela suplementação proteica.  Objetivo: Avaliar a influência de concentrações de soro fetal bovino (FBS) e albumina sérica bovina (BSA) sobre a recuperação e maturação in vitro (IVM) de oócitos bovinos.  Métodos: O estudo foi dividido em Etapa 1 (recuperação de oócitos) e Etapa 2 (IVM). Na primeira etapa, três experimentos foram realizados de acordo com o meio de recuperação: (R1) 10 vs. 20% FBS; (R2) 5 vs. 10% BSA; e (R3) melhores resultados de R1, R2 e a combinação de FBS+BSA (5+5%). Na segunda etapa, o meio de maturação foi suplementado de acordo com três experimentos: (M1) 5 vs. 10% FBS; (M2) 0,4 vs. 0,8% BSA; e (M3) melhores resultados de M1, M2 e a combinação de FBS+BSA (5+0,8%).  Resultados: Na Etapa 1 (R1 e R2), os meios com 10% FBS e 10% BSA mostraram melhores resultados de qualidade oocitária e foram definidos para o experimento R3. Em R3, 10% FBS e a combinação de FBS+BSA (5+5%) permitiram a recuperação de oócitos de melhor qualidade. Na segunda etapa (M1 e M2), meios com ambos os níveis de FBS (5 e 10%) e 0,8% BSA foram definidos como os melhores de acordo com as taxas de maturação e viabilidade de células do cumulus, então foram definidos para o experimento M3. No M3, não houve diferença entre os suplementos.  Conclusões: Para a recuperação oocitária, 10% FBS e a combinação de FBS+BSA (5+5%) podem ser usados para obter oócitos imaturos. Para maturação in vitro, FBS (ambos os níveis, 5 e 10%) e BSA (0,8%) podem ser usados sozinhos ou em combinação.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[bovine serum albumin]]></kwd>
<kwd lng="en"><![CDATA[brilliant cresyl blue]]></kwd>
<kwd lng="en"><![CDATA[fetal bovine serum]]></kwd>
<kwd lng="en"><![CDATA[in vitro embryo production]]></kwd>
<kwd lng="en"><![CDATA[meiotic competence]]></kwd>
<kwd lng="en"><![CDATA[oocyte maturation]]></kwd>
<kwd lng="en"><![CDATA[oocyte quality]]></kwd>
<kwd lng="en"><![CDATA[oocyte recovery]]></kwd>
<kwd lng="es"><![CDATA[albúmina sérica bovina]]></kwd>
<kwd lng="es"><![CDATA[azul de cresil brillante]]></kwd>
<kwd lng="es"><![CDATA[calidad de los ovocitos]]></kwd>
<kwd lng="es"><![CDATA[competencia meiótica]]></kwd>
<kwd lng="es"><![CDATA[maduración de ovocitos]]></kwd>
<kwd lng="es"><![CDATA[producción de embriones in vitro]]></kwd>
<kwd lng="es"><![CDATA[recuperación de ovocitos]]></kwd>
<kwd lng="es"><![CDATA[suero fetal bovino]]></kwd>
<kwd lng="pt"><![CDATA[albumina sérica bovina]]></kwd>
<kwd lng="pt"><![CDATA[azul cresil brilhante]]></kwd>
<kwd lng="pt"><![CDATA[competência meiótica]]></kwd>
<kwd lng="pt"><![CDATA[maturação oocitária]]></kwd>
<kwd lng="pt"><![CDATA[produção in vitro de embriões]]></kwd>
<kwd lng="pt"><![CDATA[qualidade do oócito]]></kwd>
<kwd lng="pt"><![CDATA[recuperação do oocitária]]></kwd>
<kwd lng="pt"><![CDATA[soro fetal bovino]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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