<?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>2448-6132</journal-id>
<journal-title><![CDATA[Abanico veterinario]]></journal-title>
<abbrev-journal-title><![CDATA[Abanico vet]]></abbrev-journal-title>
<issn>2448-6132</issn>
<publisher>
<publisher-name><![CDATA[Sergio Martínez González]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-61322019000100112</article-id>
<article-id pub-id-type="doi">10.21929/abavet2019.912</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Gas production in bovine feces adding tannins directly or on the diet]]></article-title>
<article-title xml:lang="es"><![CDATA[Producción de gas en heces de bovinos adicionando taninos directos o sobre la dieta]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Murillo-Ayala]]></surname>
<given-names><![CDATA[Eva]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corona-Palazuelos]]></surname>
<given-names><![CDATA[Melissa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Elenes]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Davicino]]></surname>
<given-names><![CDATA[Rubén Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romo-Rubio]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enríquez-Verdugo]]></surname>
<given-names><![CDATA[Idalia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barajas-Cruz]]></surname>
<given-names><![CDATA[Rubén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Autonomous University of Sinaloa Faculty of Veterinary Medicine and Zootechnics ]]></institution>
<addr-line><![CDATA[Culiacán ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,National University of Río Cuarto Faculty of Agronomy and Veterinary Medicine ]]></institution>
<addr-line><![CDATA[ Córdoba]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>9</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322019000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322019000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322019000100112&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Two experiments were carried out to know the effect of tannin extracts (ET) in gas production. In experiment 1, feces were collected from five bulls (420 ± 10 kg) from the same pen for four consecutive days to have one sample per day, 100 g of the feces were placed in flasks of 600 mL for each sample and the samples were added. following treatments: TE) untreated stool and HT) 7.4% condensed ET. In experiment 2 the following treatments were applied: TES) diet without ET, TC) 0.6% of condensed tannins and TH) 0.6% of hydrolysable tannins to the diet of 18 calves (220 ± 9 kg) for 28 days. In both experiments, the stools obtained were incubated for 24 h to measure their gas production by displacement. The data obtained from gas were compared with Experimental design of random blocks to eliminate the day-sampling effect. In the first experiment, gas production decreased 44% (P &lt;0.001) with tannin extracts added to the feces, but added through the diet, there were no differences between the treatments.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se realizaron dos experimentos para conocer el efecto de los extractos de taninos (ET) en la producción de gas. En el experimento 1 se colectaron heces de cinco toretes (420 ± 10 kg) de un mismo corral durante cuatro días consecutivos para tener una muestra por día, 100 g de las heces se colocaron en frascos de 600 mL para cada muestra y se adicionaron los siguientes tratamientos: TE) heces sin tratar y HT) 7.4 % de ET condensados. En el experimento 2 se aplicaron los siguientes tratamientos: TES) dieta sin ET, TC) 0.6% de taninos condensados y TH) 0.6 % de taninos hidrolizables a la dieta de 18 becerros (220±9 kg) durante 28 días. En los dos experimentos las heces obtenidas se incubaron durante 24 h para medir su producción de gas por desplazamiento. Los datos obtenidos de gas se compararon con Diseño experimental de bloques al azar para eliminar el efecto día de muestreo. En el primer experimento la producción de gas disminuyó 44 % (P&lt;0.001) con los extractos de taninos adicionados sobre las heces, pero adicionados a través de la dieta no hubo diferencias entre los tratamientos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[tannins extract]]></kwd>
<kwd lng="en"><![CDATA[feces]]></kwd>
<kwd lng="en"><![CDATA[gas production]]></kwd>
<kwd lng="en"><![CDATA[beef-cattle]]></kwd>
<kwd lng="es"><![CDATA[extracto de taninos]]></kwd>
<kwd lng="es"><![CDATA[heces]]></kwd>
<kwd lng="es"><![CDATA[producción de gas]]></kwd>
<kwd lng="es"><![CDATA[bovinos en engorda]]></kwd>
</kwd-group>
</article-meta>
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