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Demographic characterization, inbreeding and maintenance of genetic diversity in the endangered Catalonian donkey breed
Folch López, Pilar (Universitat Autònoma de Barcelona. Departament de Patologia i de Producció Animals)
Jordana i Vidal, Jordi (Universitat Autònoma de Barcelona. Departament de Patologia i de Producció Animals)

Data: 1998
Resum: This study characterizes the demographic and genealogical structure of a limited-size population in danger of extinction: the Catalonian donkey breed. The purpose of this paper is to establish the most suitable breeding criteria and guidelines to achieve the ’Programme of Conservation and Maintenance of Animal Genetic Resources’ in this population. The two main objectives proposed are: 1) to maintain the maximum genetic diversity, with 2) the minimum possible consanguinity increase per generation. A population size of 109 animals of both sexes, 44 males and 65 females, was analysed. The pedigree information was used to calculate the following items: generation length (L), variances of family size (o,2) k , effective population size (Ne), inbreeding coefficient (F) and probability of gene origin. The results obtained and breeding criteria to be followed are discussed. The correct mating policy between a stallion and a jenny would be that which would maximize the so-called genetic conservation index and minimize the inbreeding coefficient of the hypothetical offspring of the couple.
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. Creative Commons
Llengua: Anglès
Document: article ; publishedVersion
Matèria: Donkey ; Endangered breed ; Pedigree analysis ; Demographic structure ; Genetic diversity maintenance
Publicat a: Genetics, selection, evolution, Vol. 30 (March 1998) , p. 195-201, ISSN 0999-193X

DOI: 10.1186/1297-9686-30-2-195

7 p, 386.6 KB

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