<?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>2215-3896</journal-id>
<journal-title><![CDATA[Revista de Ciencias Ambientales]]></journal-title>
<abbrev-journal-title><![CDATA[Ciencias Ambientales]]></abbrev-journal-title>
<issn>2215-3896</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2215-38962020000200165</article-id>
<article-id pub-id-type="doi">10.15359/rca.54-2.9</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de impactos ambientales en la cadena de producción de huevos agroecológicos con un enfoque de ciclo de vida]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of Environmental Impacts in the Agroecological Egg Production Chain Using a Life Cycle Assessment Approach]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Velandia]]></surname>
<given-names><![CDATA[Krystle Danitza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Landázury-Correa]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chaparro]]></surname>
<given-names><![CDATA[Adriana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Corporación Universitaria Minuto de Dios  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Corporación Universitaria Minuto de Dios  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Corporación Universitaria Minuto de Dios Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</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>54</volume>
<numero>2</numero>
<fpage>165</fpage>
<lpage>179</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S2215-38962020000200165&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S2215-38962020000200165&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S2215-38962020000200165&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  (Introducción):  Análisis de impactos ambientales en la producción de huevos, muestran diferencias significativas entre sistemas convencionales y orgánicos, relacionados con la alimentación, la eficiencia energética, la distribución y la gestión de residuos; sin embargo, se desconocen los impactos ambientales en sistemas agroecológicos para la producción de huevo. (Objetivo): Evaluar los impactos ambientales de la producción agroecológica de huevos empleando un análisis de ciclo de vida. (Metodología): La evaluación se realizó para 350 gallinas de raza Hy Line Brow de granjas agroecológicas en Cundinamarca, Colombia, contemplando toda la cadena de producción de 1 kg de huevos, es decir, desde la cuna hasta la tumba, siguiendo los lineamientos de la ISO 14040. La información se recolectó durante un año contemplando la elaboración de alimentos, la producción, la distribución, consumo y disposición final. Se consideraron cantidades de materiales, energía y residuos, para posteriormente, evaluar los impactos con la metodología CML-2001. (Resultados): Los impactos ambientales de un huevo agroecológico son menores hasta en un 30 %, comparado con los de un huevo convencional, principalmente, por la alimentación, que en este caso es producida de forma agroecológica en la misma finca, al aprovechamiento de todos los residuos, el uso de energías alternativas y a que se reducen intermediarios en la cadena de comercialización. (Conclusiones): Aunque, la producción de huevos agroecológicos tiene menores impactos, es necesario lograr una mayor eficiencia en la gestión del nitrógeno, buscar desinfectantes con menores impactos en el suelo, implementar sistemas de distribución más cortos y menos contaminantes y además propiciar una reutilización de los empaques.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract (Introduction): Analysis of environmental impacts in egg production show significant differences between conventional and organic systems, associated with food, energy efficiency, distribution and waste management. However, the environmental impacts of agroecological egg production systems are unknown. (Objective): to assess the environmental impacts of agroecological egg production using a life cycle analysis.} (Methodology): The study was performed for 350 Hy Line Brow hens from agroecological farms in Cundinamarca, Colombia. The analysis covered the entire production chain of 1 kg of eggs, that is, from the cradle to the grave, following the guidelines of ISO 14040. The information was collected during one-year, contemplating food production, production, distribution, consumption, and final disposal. Quantities of materials, energy, and waste were considered to evaluate the impacts with the CML-2001 methodology subsequently. (Results): the outcome revealed that the environmental effects of an agroecological egg were up to 30% lower than those of a conventional egg. This result is mainly due to feed, which is produced in an agroecological way in the same farm; it is also due to waste treatment, use of alternative energy, and reduction of intermediaries along the commercial chain. (Conclusions): Although the impacts of agroecological eggs are lower, it requires greater efficiency in nitrogen management, the search of disinfectants with lower impacts on the soil, the implementation of shorter and cleaner distribution systems, and the promotion of packaging material reuse.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Agroecología]]></kwd>
<kwd lng="es"><![CDATA[análisis de ciclo de vida]]></kwd>
<kwd lng="es"><![CDATA[gases de invernadero]]></kwd>
<kwd lng="es"><![CDATA[huevo agroecológico]]></kwd>
<kwd lng="es"><![CDATA[producción avícola]]></kwd>
<kwd lng="en"><![CDATA[Agroecology]]></kwd>
<kwd lng="en"><![CDATA[life cycle assessment]]></kwd>
<kwd lng="en"><![CDATA[greenhouse gases]]></kwd>
<kwd lng="en"><![CDATA[agroecological egg]]></kwd>
<kwd lng="en"><![CDATA[poultry production]]></kwd>
</kwd-group>
</article-meta>
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