<?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>S0120-06902023000200055</article-id>
<article-id pub-id-type="doi">10.17533/udea.rccp.v36n2a1</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Organic acids for broilers: Effects on intestinal morphology and growth performance]]></article-title>
<article-title xml:lang="es"><![CDATA[Ácidos orgánicos para pollos de engorde: Efectos sobre la morfología intestinal y el rendimiento del crecimiento]]></article-title>
<article-title xml:lang="pt"><![CDATA[Ácidos orgânicos para frangos de corte: Efeitos na morfologia intestinal e no desempenho de crescimento]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrano-Gamboa]]></surname>
<given-names><![CDATA[Magda Y]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arce-Menocal]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-González]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Coello]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garibay-Torres]]></surname>
<given-names><![CDATA[Luis]]></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-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Michoacana de San Nicolás  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Michoacana de San Nicolás Hidalgo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>36</volume>
<numero>2</numero>
<fpage>55</fpage>
<lpage>65</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-06902023000200055&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-06902023000200055&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-06902023000200055&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Organic acids and ammonium salts added to drinking water can optimize productivity of broiler chickens.  Objective:  To evaluate the effect of acidifying drinking water on productive performance, blood and intestinal pH, and intestinal morphology of broilers.  Methods:  1,400 one-day-old broiler chicks were used to evaluate two pH levels (4 and 6) of drinking water during three periods (1-21, 1-28, and 1-42 days of age). The treatments consisted of water added with a blend of formic acid (31%), propionic acid (19%), and their salts ammonium formate (26%), and ammonium propionate (6%) compared to a control group (pH 8).  Results:  Compared to the control, the groups consuming water at pH 6 (0.038 moles) continuously for 42 days improved (p&#8804;0.01) live weight (2.785 vs 2.691 kg), feed conversion ratio (1.430 vs 1.463 kg/kg), and increased the number of intestinal villi (59.0 vs 55.7). Additionally, blood and intestinal pH was reduced vs the control group (7.75 vs 7.89; 6.32 vs 6.41, respectively).  Conclusion:  The blend of formic and propionic acids and their ammonium salts in drinking water at pH 6 during the complete production cycle of broilers improves performance, increases the number of intestinal villi, and reduces the pH of blood, duodenum, and ileum.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Agregar ácidos orgánicos y sus sales amoniacales en el agua de bebida de pollos de engorde puede optimizar su productividad.  Objetivo:  Evaluar el efecto de la acidificación del agua de bebida sobre el rendimiento productivo, pH sanguíneo e intestinal, y morfología intestinal del pollo de engorde.  Métodos:  Se utilizaron 1.400 pollos de engorde de un día de edad para evaluar dos niveles de pH (4 y 6) en agua de bebida durante tres períodos (1-21, 1-28 y 1-42 días de edad). Los tratamientos consistieron en agua con una mezcla de ácido fórmico (31%), ácido propiónico (19%) y sus sales formiato de amonio (26%) y propionato de amonio (6%) en comparación con un grupo control (pH 8).  Resultados:  En comparación con el control, los grupos que recibieron agua a pH 6 (0,038 moles) continuamente durante 42 días tuvieron mejor (p&#8804;0,01) rendimiento en términos de peso vivo (2,785 vs 2,691 kg) y conversión alimenticia (1,430 vs 1,463 kg/kg) así como un mayor número de vellosidades intestinales (59,0 vs 55,7). Adicionalmente, el pH sanguíneo e intestinal disminuyó vs el grupo control (7,75 vs 7,89; 6,32 vs 6,41, respectivamente).  Conclusión:  La mezcla de ácidos fórmico y propiónico y sus sales de amonio en el agua de bebida a pH 6 durante todo el ciclo productivo mejora los parámetros productivos en pollos de engorde, aumenta el número de vellosidades intestinales y reduce el pH de la sangre, duodeno e íleon.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Antecedentes: Recomendações para a aplicação de mistura de ácidos orgânicos e sais de amônio na água potável são necessárias para otimizar a produtividade em frangos de corte.  Objetivo:  Avaliar o efeito da acidificação da água de bebida no desempenho produtivo, pH sanguíneo e intestinal e morfologia intestinal.  Métodos:  1.400 pintos de corte entre 1 e 42 dias de idade foram utilizados para avaliar dois níveis de pH (4 e 6) na água de beber entre três períodos (1-21, 1-28 e 1-42 dias de idade) de tratamentos em água com uma mistura de ácido fórmico 31%, ácido propiônico 19%, e seus sais formato de amônio 26% e propionato de amônio 6% em relação ao controle (pH 8).  Resultados:  Os grupos que receberam água continuamente pH 6 (0,038 mols), por 42 dias tiveram melhor desempenho em relação ao controle (p&#8804;0,01) em termos de peso vivo (2,785 vs 2,691 kg) e conversão alimentar (1,430 vs 1,463 kg/kg), bem como aumento do número de vilosidades intestinais (59,0 vs 55,7), sangue e pH intestinal reduzidos vs controle (7,75 vs 7,89; 6,32 vs 6,41).  Conclusão:  A mistura dos ácidos fórmico e propiônico e seus sais de amônio na água de bebida em pH 6 durante o ciclo completo de produção melhorou os parâmetros de produção em frangos de 42 dias de idade e aumentou o número de vilosidades intestinais e uma redução no sangue, duodeno, e pH do íleo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[ammonium propionate]]></kwd>
<kwd lng="en"><![CDATA[ammonium formate]]></kwd>
<kwd lng="en"><![CDATA[blood pH]]></kwd>
<kwd lng="en"><![CDATA[broilers]]></kwd>
<kwd lng="en"><![CDATA[drinking water]]></kwd>
<kwd lng="en"><![CDATA[growth performance]]></kwd>
<kwd lng="en"><![CDATA[intestinal morphometry]]></kwd>
<kwd lng="en"><![CDATA[formic acid]]></kwd>
<kwd lng="en"><![CDATA[propionic acid.]]></kwd>
<kwd lng="es"><![CDATA[ácido fórmico]]></kwd>
<kwd lng="es"><![CDATA[ácido propiónico]]></kwd>
<kwd lng="es"><![CDATA[agua de bebida]]></kwd>
<kwd lng="es"><![CDATA[crecimiento]]></kwd>
<kwd lng="es"><![CDATA[formiato de amonio]]></kwd>
<kwd lng="es"><![CDATA[morfometría intestinal]]></kwd>
<kwd lng="es"><![CDATA[pH sanguíneo]]></kwd>
<kwd lng="es"><![CDATA[pollos de engorde]]></kwd>
<kwd lng="es"><![CDATA[propionato de amonio]]></kwd>
<kwd lng="es"><![CDATA[rendimiento.]]></kwd>
<kwd lng="pt"><![CDATA[ácido fórmico]]></kwd>
<kwd lng="pt"><![CDATA[ácido propiónico]]></kwd>
<kwd lng="pt"><![CDATA[água potável]]></kwd>
<kwd lng="pt"><![CDATA[desempenho]]></kwd>
<kwd lng="pt"><![CDATA[formato de amônio]]></kwd>
<kwd lng="pt"><![CDATA[frangos de corte]]></kwd>
<kwd lng="pt"><![CDATA[morfometria intestinal]]></kwd>
<kwd lng="pt"><![CDATA[pH sanguíneo]]></kwd>
<kwd lng="pt"><![CDATA[propionato de amônio.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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