|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha actual : |
31/03/2021 |
|
Actualizado : |
31/03/2021 |
|
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
|
Autor : |
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. |
|
Fecha 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 claves : |
Genomic selection; Pedigree depth; SsGBLUP. |
|
Asunto categoría : |
L10 Genética y mejoramiento animal |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15451/1/Lourenco-et-al.-2014.-WCGALP.pdf
|
|
Marc : |
LEADER 01622nam a2200205 a 4500
001 1061927
005 2021-03-31
008 2014 bl uuuu u01u1 u #d
100 1 $aLOURENCO, D
245 $aAre evaluations on young genotyped dairy bulls benefiting from the past generations? [conference paper].$h[electronic resource]
260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production, 10., Vancouver, BC, Canada, August 17-22, 2014. p.297.$c2014
520 $aABSTRACT. 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.
653 $aGenomic selection
653 $aPedigree depth
653 $aSsGBLUP
700 1 $aMISZTAL, I.
700 1 $aTSURUTA, S.
700 1 $aAGUILAR, I.
700 1 $aLAWLOR, T. J.
700 1 $aWELLER, J. I.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
