<?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>2079-3480</journal-id>
<journal-title><![CDATA[Cuban Journal of Agricultural Science]]></journal-title>
<abbrev-journal-title><![CDATA[Cuban J. Agric. Sci.]]></abbrev-journal-title>
<issn>2079-3480</issn>
<publisher>
<publisher-name><![CDATA[Editorial del Instituto de Ciencia Animal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2079-34802019000300219</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Organic products based on chromium for poultry production. Main advances in the last years]]></article-title>
<article-title xml:lang="es"><![CDATA[Productos orgánicos basados en cromo para la producción avícola. Principales avances en los últimos años]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valera]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[Odilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Elías]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Ciencia Animal  ]]></institution>
<addr-line><![CDATA[San José de las Lajas Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>53</volume>
<numero>3</numero>
<fpage>219</fpage>
<lpage>230</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2079-34802019000300219&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2079-34802019000300219&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2079-34802019000300219&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This study reviews the progress of recent years in the use of organic chromium products in poultry feed and production. Important topics such as the functions of this mineral element, the most used types of products, their supplementation levels, as well as the effects of the inclusion of this microelement in the diets through different forms, in the productive performance of animals, mitigation of caloric stress and other indicators of interest. The most promising, according to the obtained effects, are chromium picolinate and chromium linked to yeast, and the respective responses of animals to their supplementation have been the main focus of research in recent years.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se reseñan los avances alcanzados en años recientes en cuanto al uso de productos orgánicos de cromo en la alimentación y producción avícolas. Se analizan tópicos de importancia tales como las funciones de este elemento mineral, tipos de productos más utilizados, sus niveles de suplementación, así como los efectos de la administración en las dietas de este microelemento, a través de diferentes formas, en el comportamiento productivo de los animales, la mitigación del estrés calórico y otros indicadores de interés. Resultan los más prometedores, en función de los efectos obtenidos, el picolinato de cromo y el cromo unido a levadura, en cuyas respectivas respuestas de los animales a su suplementación, se han centrado las investigaciones en los últimos años.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[supplementation]]></kwd>
<kwd lng="en"><![CDATA[chromium]]></kwd>
<kwd lng="en"><![CDATA[broilers]]></kwd>
<kwd lng="en"><![CDATA[glucose]]></kwd>
<kwd lng="es"><![CDATA[suplementación]]></kwd>
<kwd lng="es"><![CDATA[cromo]]></kwd>
<kwd lng="es"><![CDATA[pollo de ceba]]></kwd>
<kwd lng="es"><![CDATA[glucosa]]></kwd>
</kwd-group>
</article-meta>
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