Hermesch, Susanne; Luxford, B G; Graser, H-U

Author(s)

Hermesch, Susanne

Luxford, B G

Graser, H-U

Publication Date

1999

Abstract

Genetic parameters were estimated for performance traits recorded in 3680 boars and 3893 gilts. Data included Large White and Landrace pigs. Both sexes were raised and performance recorded in the same commercial conditions using electronic feeders in group pens. Heritabilities did not differ between sexes for growth rate and feed intake. However, heritabilities and variance components were lower in boars than in gilts for feed conversion ratio and backfat. Lower means in these traits in boars than in gilts might explain differences in variances. Feed intake was more strongly genetically correlated with growth rate in boars than in gilts. Among the five analysed traits only growth rate during test had a genetic correlation significantly different from one indicating a genotype by sex interaction. Further analysis will evaluate possible genotype by sex by feeding regime interactions using multivariate analyses.

Citation

Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.13, p. 138-141

ISSN

1328-3227

Link

https://hdl.handle.net/1959.11/31441

Publisher

Association for the Advancement of Animal Breeding and Genetics (AAABG)

Title

Genetic parameters for performance traits recorded in boars and gilts

Type of document

Conference Publication

Entity Type

Publication

Author(s)	Hermesch, Susanne Luxford, B G Graser, H-U
Publication Date	1999
Abstract	Genetic parameters were estimated for performance traits recorded in 3680 boars and 3893 gilts. Data included Large White and Landrace pigs. Both sexes were raised and performance recorded in the same commercial conditions using electronic feeders in group pens. Heritabilities did not differ between sexes for growth rate and feed intake. However, heritabilities and variance components were lower in boars than in gilts for feed conversion ratio and backfat. Lower means in these traits in boars than in gilts might explain differences in variances. Feed intake was more strongly genetically correlated with growth rate in boars than in gilts. Among the five analysed traits only growth rate during test had a genetic correlation significantly different from one indicating a genotype by sex interaction. Further analysis will evaluate possible genotype by sex by feeding regime interactions using multivariate analyses.
Citation	Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.13, p. 138-141
ISSN	1328-3227
Link	https://hdl.handle.net/1959.11/31441
Publisher	Association for the Advancement of Animal Breeding and Genetics (AAABG)
Title	Genetic parameters for performance traits recorded in boars and gilts
Type of document	Conference Publication
Entity Type	Publication

Genetic parameters for performance traits recorded in boars and gilts

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