<?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>S2448-61322020000100504</article-id>
<article-id pub-id-type="doi">10.21929/abavet2020.20</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del desprendimiento de oocistos de Eimeria maxima y Eimeria acervulina en pollos de engorde]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of oocyst shedding of Eimeria maxima and Eimeria acervulina in broiler chickens]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Laverty]]></surname>
<given-names><![CDATA[Lauren]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Señas-Cuesta]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-González]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Selby]]></surname>
<given-names><![CDATA[Callie]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tellez Jr.]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernandez-Velasco]]></surname>
<given-names><![CDATA[Xochitl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vuong]]></surname>
<given-names><![CDATA[Christine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hargis]]></surname>
<given-names><![CDATA[Billy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tellez-Isaias]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Graham]]></surname>
<given-names><![CDATA[Danielle]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Arkansas Division of Agriculture Department of Poultry Science ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Nayarit Unidad Académica de Medicina Veterinaria y Zootecnia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,UNAM Facultad de Medicina Veterinaria y Zootecnia Departamento de Medicina y Zootecnia de Aves]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</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>10</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-61322020000100504&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-61322020000100504&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-61322020000100504&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: El propósito del presente estudio fue evaluar el día y la hora de recolección de la muestra de un desafío experimental con Eimeria maxima (EM) y Eimeria acervulina (EA) en pollos de engorde. Los pollos de engorde macho Cobb-Vantress de un día de edad se asignaron aleatoriamente a uno de tres grupos con diez réplicas (n = 8 pollos / réplica). Los pollos se colocaron en jaulas de batería con un entorno controlado apropiado para la edad: Grupo 1) Control negativo (sin desafío o tratamiento); 2) Control de desafío (solo desafío Eimeria); 3) Desafío + salinomicina. A los 14 días de edad, los pollos fueron desafiados por vía oral con el cultivo mixto de EM/EA (10,000 EM esporulados que contenían 4% de EA de tipo salvaje). Los parámetros de rendimiento se registraron en los días 7, 14, 20 y 23. Los puntajes de las lesiones se registraron post mortem en los días 20 y 23. El oocisto por gramo (OPG) se realizó en los días seis, siete y ocho después del desafío, y muestras se recolectaron a las 9:00 a.m y a las 6:00 p.m. de cada día, respectivamente. Los recuentos de oocistos fueron significativamente diferentes (P &lt; 0.05) entre la mañana y la tarde en el día seis después del desafío con coccidios. Los resultados de este estudio muestran que el día y la hora en que se recolectan las muestras pueden tener un efecto significativo en la confiabilidad y validez de los datos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: The purpose of the present study was to evaluate the day and the time of sample collection of an experimental challenge with Eimeria maxima (EM) and Eimeria acervulina (EA) in broiler chickens. One- day old male Cobb-Vantress broiler chickens were randomly allocated to one of three groups with ten replicates (n=8 chickens/replicate). Chickens were placed in battery cages with a controlled age- appropriate environment: Group 1) Negative control (no challenge or treatment); 2) Challenge control (Eimeria challenge only); 3) Challenge + Salinomycin. Challenged chickens were orally gavaged with the mixed culture of EM/EA (10,000 sporulated EM containing 4% wild-type EA) at 14 days of age. Performance parameters were recorded at days 7, 14, 20, and 23. Lesions scores were recorded post-mortem on days 20 and 23. Oocyst per gram (OPG) was performed on days six, seven, and eight post-challenge, and samples were collected at 9:00 AM and 6:00 PM on each day, respectively. Oocyst counts were significantly different (P &lt; 0.05) between morning and afternoon on day six post coccidia challenge. The results of this study show that the day and the time at which samples are collected can have a significant effect on the reliability and validity of data.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Eimeria maxima]]></kwd>
<kwd lng="es"><![CDATA[Eimeria acervulina]]></kwd>
<kwd lng="es"><![CDATA[desprendimiento de oocistos]]></kwd>
<kwd lng="es"><![CDATA[parámetros de rendimiento]]></kwd>
<kwd lng="en"><![CDATA[Eimeria maxima]]></kwd>
<kwd lng="en"><![CDATA[Eimeria acervulina]]></kwd>
<kwd lng="en"><![CDATA[oocysts shedding]]></kwd>
<kwd lng="en"><![CDATA[performance parameters]]></kwd>
</kwd-group>
</article-meta>
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