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Titolo:
The importance of variance components estimation in breeding of farm animals - a review
Autore:
Rohe, R; Krieter, J; Preisinger, R;
Indirizzi:
Univ Kiel, Inst Tierzucht & Tierhaltung, D-24098 Kiel, Germany Univ Kiel Kiel Germany D-24098 ucht & Tierhaltung, D-24098 Kiel, Germany
Titolo Testata:
ARCHIV FUR TIERZUCHT-ARCHIVES OF ANIMAL BREEDING
fascicolo: 5, volume: 43, anno: 2000,
pagine: 523 - 534
SICI:
0003-9438(2000)43:5<523:TIOVCE>2.0.ZU;2-E
Fonte:
ISI
Lingua:
GER
Soggetto:
INCLUDING FERTILITY PERFORMANCE; GENETIC STATISTICAL-ANALYSIS; MARKER-ASSISTED SELECTION; EGG-PRODUCTION TRAITS; LITTER SIZE; CROSSBRED INFORMATION; 1ST COMMUNICATION; 2ND COMMUNICATION; RIDING HORSES; BEEF-CATTLE;
Keywords:
variance components; breeding programmes; maternal effects; dominance; crossbreeding; genotype environmental interaction; quantitative trait loci;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Rohe, R Univ Kiel, Inst Tierzucht & Tierhaltung, Olshaussenstr 40, D-24098Kiel, Germany Univ Kiel Olshaussenstr 40 Kiel Germany D-24098 098 Kiel, Germany
Citazione:
R. Rohe et al., "The importance of variance components estimation in breeding of farm animals - a review", ARCH TIER, 43(5), 2000, pp. 523-534

Abstract

The present paper showed the importance of variance components estimation in animal breeding. Beside the use of variance components for estimation ofbreeding values, the components have a high importance on further breedingaspects, such as indication of selection limits, optimisation of test period, change of performance during growth, and determination of the best selection traits. Maternal and non-additive genetic variance components can be estimated and their high influence on choice of the optimal selection strategy are explained. Standard errors of crossbreeding parameters are influenced by genetic relationships and are only unbiased when using all genetic variances and covariances among animals. Genotype-environmental-interaction and heterogeneous variances, which result in high reduction in selection response, can be obtained in a variance components estimation. The high value of Bayesian methods in order to describe the sampling variance of variance components and to account for the standard error of estimation of variance components in the estimation of breeding values is explained.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 10:21:01