<?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>1870-7459</journal-id>
<journal-title><![CDATA[Huitzil]]></journal-title>
<abbrev-journal-title><![CDATA[Huitzil]]></abbrev-journal-title>
<issn>1870-7459</issn>
<publisher>
<publisher-name><![CDATA[Sociedad para el Estudio y Conservación de las Aves en México, A.C. (CIPAMEX)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-74592017000100102</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Relación heterófilo/linfocito, frecuencia espontánea de eritrocitos micronucleados y prolongaciones nucleares en el ganso nevado (Chen caerulescens): Una propuesta como posible biomonitor de estrés y genotóxicos ambientales]]></article-title>
<article-title xml:lang="en"><![CDATA[Heterophil to lymphocyte ratio, basal frequency of micronucleated erythrocytes and nuclear extensions in the snow goose (Chen caerulescens): A proposal as possible stress and environmental genotoxicity biomonitor]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Quintanilla]]></surname>
<given-names><![CDATA[Martha C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres Bugarín]]></surname>
<given-names><![CDATA[Olivia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Guerrero]]></surname>
<given-names><![CDATA[José Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado León]]></surname>
<given-names><![CDATA[Tania Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salas Pacheco]]></surname>
<given-names><![CDATA[José Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pereda Solís]]></surname>
<given-names><![CDATA[Martín E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Medicina Veterinaria y Zootecnia Cuerpo Académico de Fauna Silvestre]]></institution>
<addr-line><![CDATA[Durango Dgo.]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Guadalajara Laboratorio de Investigación de Genotóxicos ]]></institution>
<addr-line><![CDATA[Zapopan Jal]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Instituto de Investigación Científica ]]></institution>
<addr-line><![CDATA[Durango Dgo.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>18</volume>
<numero>1</numero>
<fpage>102</fpage>
<lpage>111</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-74592017000100102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592017000100102&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592017000100102&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Existen organismos silvestres que son altamente vulnerables ante estresores antropogénicos y naturales, estos organismos pueden ser de utilidad para evaluar la salud ambiental mediante diferentes indicadores confiables, sencillos, rápidos, económicos para determinar y si es posible reducir estos efectos negativos. En este estudio proponemos al ganso nevado (Chen caerulescens) como posible biomonitor de estrés y genotóxicos ambientales mediante la relación heterófilo/linfocito (h/l), la prueba de micronúcleos (EMN), prolongaciones nucleares en eritrocitos (EPN) y eritrocitos policromáticos (EPC). Durante la temporada de caza (2012-2013) en el humedal de Málaga, Durango, México, colectamos 18 organismos. Los eritrocitos fueron las células más abundantes, de núcleo y morfología elípticos, de tamaño 12.68 ± 0.89 µm. Observamos heterófilos (11.07±1.32 µm), eosinófilos (9.67±1.26 µm), basófilos (5.75 ± 0.78 µm), monocitos (10.49±1.36 µm) y linfocitos (6.53±1.0 µm). No identificamos alteración en las proporciones ni en la morfología de leucocitos, sin embargo, es necesario un mayor número de organismos para establecer los parámetros sanguíneos de base normal para esta especie. La relación h/l fue de 0.41 ± 0.11 este valor es similar a lo reportado para esta y otras especies de aves consideradas como sanas. Establecimos la frecuencia basal de EMN (2.6±1.45), EPN (249.2 ± 89.74) y EPC (156.5 ± 50). El ganso nevado es un organismo que se perfila como buen candidato a biomonitor ambiental debido a la frecuencia basal de su relación h/l, EMN, EPN y EPC, pero debe probarse en condiciones estandarizadas y a través de estudios en zonas con y sin contaminación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract There are wild organisms that are highly vulnerable to anthropogenic and natural stressors, these organisms may be useful to assess environmental health through various reliable, simple, rapid, inexpensive indicators and to determine and if possible reduce these negative effects. In this study we propose that the snow goose (Chen caerulescens) to be tested as stress and environmental biomonitor of genotoxicity, by heterophil/lymphocyte (h/l) ratio, micronucleus test (MNE), nuclear protrusions in erythrocytes (NPE) and polichromatic erythrocytes (PCE). During the hunting season (2012-2013) in the wetland of Malaga, Durango, Mexico, 18 organisms were collected. Erythrocytes were the most abundant cells with elliptical morphology and nucleus, size of 12.68 ± 0.89, regular contour and nucleus-cytoplasm ratio 1:2. We observed heterophils (11.07 ± 1.32 µm), eosinophils (9.67 ± 1.26 &#956;m), basophils (5.75 ± 0.78 µm), monocytes (10.49 ± 1.36 &#956;m) and lymphocytes (6.53 ± 1.0 µm). No alteration in the proportions or morphology of leukocytes was identified, however, a greater number of organisms are required to establish normal blood para meters basis for this species. h/l ratio was 0.41±0.11 this value is similar to that reported for this and other bird species classified as healthy. MNE basal rate (2.6 ± 1.45), NPE (249.2 ± 89.74) and PCE (156.5 ± 50) was established. The snow goose is an organism that is emerging as a good candidate for environmental biomonitor due to basal frequency of h/l, MNE, NPE and PCE, but must be tested under standardized conditions and through studies in areas with and without pollution.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Biomonitor]]></kwd>
<kwd lng="es"><![CDATA[Chen caerulescens]]></kwd>
<kwd lng="es"><![CDATA[eritrocitos micronucleados]]></kwd>
<kwd lng="es"><![CDATA[eritrocitos con prolongaciones nucleares]]></kwd>
<kwd lng="es"><![CDATA[índice heterófilo linfocito]]></kwd>
<kwd lng="en"><![CDATA[Biomonitor]]></kwd>
<kwd lng="en"><![CDATA[Chen caerulescens]]></kwd>
<kwd lng="en"><![CDATA[micronucleated erythrocytes]]></kwd>
<kwd lng="en"><![CDATA[erythrocytes with nuclear protrusions]]></kwd>
<kwd lng="en"><![CDATA[heterophil/lymphocyte ratio]]></kwd>
</kwd-group>
</article-meta>
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