Estructura genética de la raza tudanca inferida de información genealógica

  1. Saínz, R 1
  2. García, J.A 2
  3. Argüello, S. 2
  4. Barquín, F. 2
  5. Crespo, M.J 2
  6. Chomón, N. 2
  7. Calderón, L.A 2
  8. Cañón, J. 3
  1. 1 Asociación Nacional Criadores Vacuno Raza Tudanca. Santander
  2. 2 Consejería de Desarrollo Rural, Ganadería, Pesca y Biodiversidad. Santander
  3. 3 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

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Revue:
Archivos de zootecnia

ISSN: 0004-0592,  1885-4494

Année de publication: 2011

Volumen: 60

Número: 231

Pages: 401-404

Type: Article

DOI: 10.4321/S0004-05922011000300021 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

D'autres publications dans: Archivos de zootecnia

Résumé

The pedigree file of the Tudanca local bovine breed recovers information of animals born from 1966 to 2010 in 455 herds. The pedigree completeness level is characterised by a low number of equivalent complete generations (~ 2). Individual inbreeding and relatedness coefficients, and effective number of founders, ancestors and founder genomes, were computed. Average effective population size was estimated based on the regression of the inbreeding on genealogical amount of information, and effective population seize for the last generation were also calculated. Using this information, medium-term inbreeding rate evolution (50 years) was predicted. A high percentage of animals (87%) with a high level of inbreeding (>6,25) was found. The effective number of founder genomes (72) and the effective number of ancestors (88) reflect the genetic base of the current population, while the medium-term loss of genetic variability predicted from the effective population size (18-29) showed a breed under a low to moderate level of genetic risk.

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