Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal
In Portugal, there are 13 beef cattle breeds, 12 sheep breeds, 5 goat breeds, 2 swine breeds and 3 horse breeds identified, with total numbers of registered females, in 1999, of 70000, 136176, 43700, 6 520 and 8600, respectively. Despite the high genetic diversity represented by these native breeds,...
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2000
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oai-ART00000014432016-04-06Recursos genéticos animais e sistemas de exploraçao tradicionais em PortugalMatos, C.A.PIn Portugal, there are 13 beef cattle breeds, 12 sheep breeds, 5 goat breeds, 2 swine breeds and 3 horse breeds identified, with total numbers of registered females, in 1999, of 70000, 136176, 43700, 6 520 and 8600, respectively. Despite the high genetic diversity represented by these native breeds, their relative contributions for national herds are only 24 p.100 for beef cattle, 6 p.100 for sheep, 7.8 p.100 for goats, 2 p.100 for swine and 15.2 p.100 for horses. The vast majority of animals raised in Portugal are crossbreds, as a result of continued crossbreeding practices with exotic germplasm. Farm size, climatic, soil and cultural diversity are the main factors influencing production systems. The extensive production system is the most typical in Portugal, namely for ruminant species. However, in terms of average herd sizes, use of products and type of enterprise, there is a clear distinction between the North and the South of Portugal. While in the North, family based enterprises are the most common, in the South, herd sizes and enterprises are larger, and generally more competitive. Approximately 40 p.100 of total native breeds have less than 5000 registered females. According to FAO standards, these breeds are in various degrees of endangerment and genetic conservation programs, as well as actions for their future utilization and management, need to be implemented.Universidad de Córdoba: Servicio de Publicaciones2000text (article)application/pdfhttps://dialnet.unirioja.es/servlet/oaiart?codigo=4197(Revista) ISSN 0004-0592Archivos de zootecnia, ISSN 0004-0592, Vol. 49, Nº 187, 2000, pags. 363-383spaLICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI |
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In Portugal, there are 13 beef cattle breeds, 12 sheep breeds, 5 goat breeds, 2 swine breeds and 3 horse breeds identified, with total numbers of registered females, in 1999, of 70000, 136176, 43700, 6 520 and 8600, respectively. Despite the high genetic diversity represented by these native breeds, their relative contributions for national herds are only 24 p.100 for beef cattle, 6 p.100 for sheep, 7.8 p.100 for goats, 2 p.100 for swine and 15.2 p.100 for horses. The vast majority of animals raised in Portugal are crossbreds, as a result of continued crossbreeding practices with exotic germplasm. Farm size, climatic, soil and cultural diversity are the main factors influencing production systems. The extensive production system is the most typical in Portugal, namely for ruminant species. However, in terms of average herd sizes, use of products and type of enterprise, there is a clear distinction between the North and the South of Portugal. While in the North, family based enterprises are the most common, in the South, herd sizes and enterprises are larger, and generally more competitive. Approximately 40 p.100 of total native breeds have less than 5000 registered females. According to FAO standards, these breeds are in various degrees of endangerment and genetic conservation programs, as well as actions for their future utilization and management, need to be implemented. |
| format |
text (article) |
| author |
Matos, C.A.P |
| spellingShingle |
Matos, C.A.P Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal |
| author_facet |
Matos, C.A.P |
| author_sort |
Matos, C.A.P |
| title |
Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal |
| title_short |
Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal |
| title_full |
Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal |
| title_fullStr |
Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal |
| title_full_unstemmed |
Recursos genéticos animais e sistemas de exploraçao tradicionais em Portugal |
| title_sort |
recursos genéticos animais e sistemas de exploraçao tradicionais em portugal |
| publisher |
Universidad de Córdoba: Servicio de Publicaciones |
| publishDate |
2000 |
| url |
https://dialnet.unirioja.es/servlet/oaiart?codigo=4197 |
| work_keys_str_mv |
AT matoscap recursosgeneticosanimaisesistemasdeexploracaotradicionaisemportugal |
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1718333826164326400 |