Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/4551
Title: Genetic correlations between the performance of purebred and crossbred pigs
Contributor(s): Nakavisut, Sansak (author); Crump, Ronald Edward  (author); Suarez, Matias (author); Graser, Hans-Ulrich  (author)
Publication Date: 2005
Handle Link: https://hdl.handle.net/1959.11/4551
Abstract: Genetic correlations between purebred Duroc (DU), Large White (LW) and Landrace (LR) pigs and their crossbreds LWxLR, LRxLW, DUx(LWxLR) and DUx(LRxLW) were estimated for production and reproduction traits. Performance test and litter records from Government pig breeding stations in Thailand were used. REML bivariate animal models were used to estimate genetic correlations for each trait measured in purebreds and in crossbreds. Production traits tended to have very high genetic correlations (0.66 – 0.96) between purebreds and crossbreds, whereas reproduction traits tended to have low to moderate genetic correlations (0.21 – 0.52). The breeding procedure to improve production traits of crossbred pigs using genetic evaluation and selection based on purebred records is verified by the results of this study due to the high genetic correlations. However, for reproduction traits, purebred records seem to be less relevant for use to improve crossbred reproduction traits because of low genetic correlations between purebreds and crossbreds. Therefore, a joint genetic evaluation of purebred and crossbred records is recommended to improve reproduction traits in crossbred sows.
Publication Type: Conference Publication
Conference Details: AAABG 2005: 16th Conference of the Association for the Advancement of Animal Breeding and Genetics, Noosa Lakes, Australia, 25th - 28th September, 2005
Source of Publication: Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.16, p. 99-102
Place of Publication: Collingwood, 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
Publisher/associated links: http://www.livestocklibrary.com.au/handle/1234/5980
http://www.aaabg.org/livestocklibrary/2005/099nakavisut.pdf
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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