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Title: Genetic parameters for performance traits recorded in boars and gilts
Contributor(s): Hermesch, Susanne  (author)orcid ; Luxford, B G (author); Graser, H-U  (author)
Publication Date: 1999
Open Access: Yes
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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.
Publication Type: Conference Publication
Conference Details: AAABG 1999: 13th Conference of the Association for the Advancement of Animal Breeding and Genetics, Mandurah, Australia, 4th - 7th July, 1999
Source of Publication: Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.13, p. 138-141
Publisher: Association for the Advancement of Animal Breeding and Genetics (AAABG)
Place of Publication: Armidale, Australia
ISSN: 1328-3227
Fields of Research (FoR) 2008: 070201 Animal Breeding
Socio-Economic Objective (SEO) 2008: 830308 Pigs
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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