<?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>0120-2952</journal-id>
<journal-title><![CDATA[Revista de la Facultad de Medicina Veterinaria y de Zootecnia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Med. Vet. Zoot.]]></abbrev-journal-title>
<issn>0120-2952</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Medicina Veterinaria y de Zootecnia Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-29522020000300239</article-id>
<article-id pub-id-type="doi">10.1446/rfmvz.v67n3.93931</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efectos de la adición de probiótico Saccharomyces cerevisiae sobre histomorfología intestinal en pollos de engorde]]></article-title>
<article-title xml:lang="en"><![CDATA[Effects of addition of probiotic Saccharomyces cerevisiae on intestinal histomorphology in broilers]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quevedo]]></surname>
<given-names><![CDATA[D. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corredor]]></surname>
<given-names><![CDATA[J. R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pulecio]]></surname>
<given-names><![CDATA[S. L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de los Llanos Facultad de Ciencias Agropecuarias y Recursos Naturales Laboratorio de Histopatología]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>67</volume>
<numero>3</numero>
<fpage>239</fpage>
<lpage>252</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-29522020000300239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-29522020000300239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-29522020000300239&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Este trabajo describe los efectos del probiótico Saccharomyces cerevisiae sobre el área, número de criptas de Lieberkühn en duodeno y yeyuno, y producción de moco en ambas secciones intestinales de pollos de engorde. Fueron empleados los tejidos de un total de 27 individuos clasificados en un grupo control GC (n=12) y un grupo suplementado con probióticos GP (n=15). Los resultados revelaron que los grupos suplementados con el S. cerevisiae presentaron una mayor amplitud del área de las criptas en duodeno (p= 0,0119) y yeyuno (p= 0,0355), menor número de criptas por milímetro en duodeno (p= 0,0420) y mayor producción de moco en duodeno respecto al grupo control (p= 0,0185), mientras que en yeyuno no se observaron diferencias significativas. Se concluyó que el uso de Saccharomyces cerevisiae aumentó el tamaño del área de las criptas en ambas secciones intestinales y aumentó la producción de moco en duodeno; lo cual, al aumentar la superficie de absorción intestinal, seguramente podría resultar en mejoras de los parámetros productivos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This work describes the effects of the probiotic Saccharomyces cerevisiae on the area, number of Lieberkühn crypts in the duodenum and jejunum, and mucus production in both intestinal sections. Tissues from a total of 27 individuals were used, classified in control group - GC (n = 12) and group supplemented with probiotics - GP (n = 15). The results revealed that the group supplemented with S. cerevisiae presented a greater area of the crypts in the duodenum (p = 0.0119) and jejunum (p = 0.0355), less number of crypts per millimeter in the duodenum (p = 0.0420) and higher mucus production in the duodenum compared to the control group (p = 0.0185), while in the jejunum no significant differences were observed. It was concluded that the use of Saccharomyces cerevisiae increased the size of the crypt area in both intestinal sections and increased mucus production in the duodenum; which by increasing the intestinal absorption surface could surely result in improvements in the productive parameters.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[pollo de engorde]]></kwd>
<kwd lng="es"><![CDATA[suplemento]]></kwd>
<kwd lng="es"><![CDATA[morfología]]></kwd>
<kwd lng="es"><![CDATA[intestino delgado]]></kwd>
<kwd lng="en"><![CDATA[broiler]]></kwd>
<kwd lng="en"><![CDATA[supplements]]></kwd>
<kwd lng="en"><![CDATA[histology]]></kwd>
<kwd lng="en"><![CDATA[small intestine]]></kwd>
</kwd-group>
</article-meta>
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