Fecha/hora: 04/06/2024 21:45:35

Biblioteca(s): | INIA Las Brujas.
Tipo de la producción científica: | Trabajos en Congresos/Conferencias
Fecha corriente: | 31/03/2021
Fecha de la última actualización: | 31/03/2021
Autoria: | LOURENCO, D; MISZTAL, I.; TSURUTA, S.; AGUILAR, I.; LAWLOR, T. J.; WELLER, J. I.
Afiliación: | DANIELA A.L. LOURENCO, University of Georgia, Athens, GA, USA; IGNACY MISZTAL, University of Georgia, Athens, GA, USA; SHOGO TSURUTA, University of Georgia, Athens, GA, USA; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; THOMAS J. LAWLOR, Holstein Association USA Inc., Brattleboro, VT, USA; JOEL I. WELLER, Agricultural Research Organization, the Volcani Center, Bet Dagan, Israe.
Título: | Are evaluations on young genotyped dairy bulls benefiting from the past generations? [conference paper].
Complemento del título: | Volume Species Breeding: Dairy cattle, 297.
Año de publicación: | 2014
Fuente/Imprenta: | In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 10., Vancouver, BC, Canada, August 17-22, 2014. p.297.
Idioma: | Inglés

Contenido:

ABSTRACT.
Datasets of US and Israeli Holsteins were used to evaluate the impact of older generations on ability to predict EBV of young genotyped animals in traditional and single-step genomic BLUP. Inclusion of two (A2) or all (Af) ancestor generations was also evaluated. A total of 34,506 US and 1,305 Israeli bulls were genotyped. Thresholds for data deletion were based on 5 years interval. The number of generations deleted without reduction in accuracy depended on data structure and trait. For US Holsteins, removing 3 and 4 generations of data did not reduce accuracy for final score in Af and A2, respectively. For Israeli Holsteins, the effect of removing older generations depended on the genetic origins of the bulls. Therefore, truncating older data does not decrease the accuracy of young genotyped bulls, while reducing computation requirements and helping to find problems in the population structure.

Palabras-Clave: | Genomic selection; Pedigree depth; SsGBLUP.
Categoría del tema: | L10 Genética y mejoramiento animal
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/15451/1/Lourenco-et-al.-2014.-WCGALP.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102606-1) - PXI - PC - DD - WCGALP/10/2014 -  -  - DIS