Resumen

ARELLANO-VERA, Williams; SIFUENTES-RINCON, Ana María; GARCIDUENAS-PINA, Rogelio  y  PARRA-BRACAMONTE, Gaspar Manuel. Importance of parentage verification-assignment in extensive multiple-sired breeding herds. Rev. Cient. (Maracaibo) [online]. 2010, vol.20, n.1, pp.53-60. ISSN 0798-2259.

To assess the implications of parentage assignation on herds-genetic improvement nine microsatellite markers were used in order to structure the genealogy of a multisired Braford herd. All progeny (100%) had satisfactory paternity assignment, conversely the maternity verification analysis showed assignation errors up to 90%. Our results support the use of molecular tools to verify the pedigree structure in those herds with management systems that limit the proper registration of progeny at calving.

Palabras clave : Microsatellites; paternity test; maternity test; Braford.