Warning: XSLTProcessor::transformToXml() [xsltprocessor.transformtoxml]: I/O warning : failed to load external entity "file:////srv/scielo/www/bases/xml/rcm/v30n3/2664-0880-rcm-30-03-e05.xml" in /srv-new/scielo/www/htdocs/class.XSLTransformerPHP5.php on line 36 Emisiones de gases de efecto invernadero procedentes de la ganadería en Cuba