Estimation of inbreeding rates and extinction risk of forty one Belgian chicken breeds in 2005 and 2010 ; ESTIMACIÓN DE TASA DE CONSANGUINIDAD Y RIESGO DE EXTINCIÓN EN CUARENTA Y UNA RAZAS BELGAS DE POLLOS EN 2005 Y 2010
peer reviewed ; In Belgium, as generally in Europe, the dominant position of the high producing commercial strains specialized in meat or eggs production threats of extinction the local traditional breeds. In this work, a follow up of the changes in populations size, and the rates of inbreeding of the Belgian poultry breeds, has been carried out in 2005 and 2010. About forty breeds were concerned. The Belgian hen breeds being overwhelmingly under threat of extinction, because of the low number of individuals by breed. For each of these breeds, various criteria were considered, risk status, bre... Mehr ...
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Dokumenttyp: | journal article |
Erscheinungsdatum: | 2014 |
Verlag/Hrsg.: |
Instituto de Zootecnica
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Schlagwörter: | Biodiversity / Local chicken breed / Conservation / Life sciences / Genetics & genetic processes / Animal production & animal husbandry / Sciences du vivant / Génétique & processus génétiques / Productions animales & zootechnie |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-26534692 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://orbi.uliege.be/handle/2268/168768 |
peer reviewed ; In Belgium, as generally in Europe, the dominant position of the high producing commercial strains specialized in meat or eggs production threats of extinction the local traditional breeds. In this work, a follow up of the changes in populations size, and the rates of inbreeding of the Belgian poultry breeds, has been carried out in 2005 and 2010. About forty breeds were concerned. The Belgian hen breeds being overwhelmingly under threat of extinction, because of the low number of individuals by breed. For each of these breeds, various criteria were considered, risk status, breeding male to breeding female ratio, effective population size, effective population size to actual size ratio and rate of inbreeding. ; En Bélgica, y generalmente en Europa, la posición dominante de estirpes comerciales altamente productivas, especializadas en la producción de carne o huevos, amenaza de extinción a las razas locales tradicionales. Se ha realizado, en 2005 y 2010, un seguimiento de las tasas de consanguinidad de razas de gallinas belgas. Unas cuarenta razas han sido consideradas. Las razas belgas de gallinas se encuentran abrumadoramente en peligro de extinción a causa del escaso número de individuos en cada raza. Para cada una de las razas fueron considerados varios criterios: estado de riesgo, relación reproductores machos/reproductores hembra, tamaño efectivo de población, relación tamaño efectivo/tamaño actual y tasa de consanguinidad.