<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Perea Falcón, J.</style></author><author><style face="normal" font="default" size="100%">García, Ana</style></author><author><style face="normal" font="default" size="100%">Acero, R.</style></author><author><style face="normal" font="default" size="100%">Valerio, Daniel</style></author><author><style face="normal" font="default" size="100%">Rodríguez, V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Caracterización productiva del vacuno ecológico en Andalucía</style></title><secondary-title><style face="normal" font="default" size="100%">Arch. Zootec</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Beef aptitude</style></keyword><keyword><style  face="normal" font="default" size="100%">Extensive systems</style></keyword><keyword><style  face="normal" font="default" size="100%">Organic farming</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2007///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.uco.es/organiza/servicios/publica/az/php/az.php?idioma_global=0&amp;la_revista=1&amp;revista=135&amp;codigo=1483&amp;que_busca=Ba</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">56</style></volume><pages><style face="normal" font="default" size="100%">517 - 521</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The structure of organic beef cattle farms located in Andalusia have been characterised from a stratified survey including 10% of official census. Farms are specialized in raising steers and use native breeds. The mean surface of farms is 524 ha and they have 99 cows. They are multifunctional systems located in the dehesa, where cattle commonly graze alongside other species like Iberian pigs. These farms correspond to a production model in which the land is extremely important in the production of food for the cattle, using strategic or seasonal food supplementation in periods of shortage. Average stocking is 0.43 animals/ha, lower than those proposed by Orden de 4 de febrero del 2004 (Consejería de Agricultura y Pesca), corresponding to a farming activity adapted to the environment. Likewise, the mean productivity of these farms is scarce (with an index of commercial calves of 80% and a mortality rate of 5.26%). These farms have a commercial target where the non-familiar workforce predominates, and the workforce amounts to 1.56 AWU per farm. These farms sell all calves after weaning to livestock traders, who take them to other regions for conventional fattening until slaughter. It is necessary to develop organic commercial trails to guarantee the future of the sector.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Perea Falcón, J</style></author><author><style face="normal" font="default" size="100%">García, Ana</style></author><author><style face="normal" font="default" size="100%">Acero, R</style></author><author><style face="normal" font="default" size="100%">Valerio, Daniel</style></author><author><style face="normal" font="default" size="100%">Rodríguez, V</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Caracterización productiva del vacuno ecológico en Andalucía</style></title><secondary-title><style face="normal" font="default" size="100%">Arch. Zootec</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Beef aptitude</style></keyword><keyword><style  face="normal" font="default" size="100%">Extensive systems</style></keyword><keyword><style  face="normal" font="default" size="100%">Organic farming</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><volume><style face="normal" font="default" size="100%">56</style></volume><pages><style face="normal" font="default" size="100%">517-521</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The structure of organic beef cattle farms located in Andalusia have been characterised from a stratified survey including 10% of official census. Farms are specialized in raising steers and use native breeds. The mean surface of farms is 524 ha and they have 99 cows. They are multifunctional systems located in the dehesa, where cattle commonly graze alongside other species like Iberian pigs. These farms correspond to a production model in which the land is extremely important in the production of food for the cattle, using strategic or seasonal food supplementation in periods of shortage. Average stocking is 0.43 animals/ha, lower than those proposed by Orden de 4 de febrero del 2004 (Consejería de Agricultura y Pesca), corresponding to a farming activity adapted to the environment. Likewise, the mean productivity of these farms is scarce (with an index of commercial calves of 80% and a mortality rate of 5.26%). These farms have a commercial target where the non-familiar workforce predominates, and the workforce amounts to 1.56 AWU per farm. These farms sell all calves after weaning to livestock traders, who take them to other regions for conventional fattening until slaughter. It is necessary to develop organic commercial trails to guarantee the future of the sector.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">SÁNCHEZ, E</style></author><author><style face="normal" font="default" size="100%">Gaída, M F P</style></author><author><style face="normal" font="default" size="100%">V&amp;ga, A R L</style></author><author><style face="normal" font="default" size="100%">Diaz, F J M</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">DETERMINACIÓN DE LOS RECURSOS ENERGÉTICOS QUE CUBREN LAS NECESIDADES ALIMENTICIAS EN SISTEMAS DE DEHESA1 DETERMINATION</style></title><secondary-title><style face="normal" font="default" size="100%">Archivos de Zootecnia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">energetic analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Extensive systems</style></keyword><keyword><style  face="normal" font="default" size="100%">grazing resources</style></keyword><keyword><style  face="normal" font="default" size="100%">Shepherding</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1996</style></year></dates><volume><style face="normal" font="default" size="100%">45</style></volume><pages><style face="normal" font="default" size="100%">379-393</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Dehesas are farming systems that covers with their own resources agreat deal of cattle food needs. However. the use and contribution of these resources haven&quot;t a uniform distribution between the diferent stock species. This paper deals with an analytical case study of characteristic dehesas of SW Badajoz (Spain), where the factors that influence the use of grazing resources have been determinated. The analyzed dehesas cover up to 73 p.100 of food needs for ruminants, but only 47 p.100 for Iberian pig. The knowledge of food energetic flows is a solid starting point to analyze the management and the sustainable use of dehesa resources.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sánchez, M Escribano</style></author><author><style face="normal" font="default" size="100%">García, F Pulido</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Analisis de los recursos de pastoreo aportados por el medio en dos Dehesas caracteristicas del sur de la provincia de Badajoz (España)</style></title><secondary-title><style face="normal" font="default" size="100%">Archivos de zootecnia</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">agroforestry systems</style></keyword><keyword><style  face="normal" font="default" size="100%">Economic analysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Extensive systems</style></keyword><keyword><style  face="normal" font="default" size="100%">natural resources</style></keyword><keyword><style  face="normal" font="default" size="100%">pastures</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1994</style></year></dates><volume><style face="normal" font="default" size="100%">43</style></volume><pages><style face="normal" font="default" size="100%">239-249</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">En este trabajo se analizan los recursos de pastoreo en dos explotaciones características de dehesa de Extremadura en el año 1992, Desde el punto de vista de la evaluación técnica, se observa que el sistema cubre, con recursos propios, entre el 54 y el 56 p.100 de las necesidades de la ganadería doméstica en el año de estudio, que se caracterizó por una climatología adversa, Por otro lado, los recursos de pastoreo suponen una de las principales utilidades económicas del sistema dehesa, cuya efectividad económica dependerá de la posibilidad de sustitución y del precio de mercado de las materias primas energéticas comerciales.</style></abstract></record></records></xml>