Document Detail

Identification of quantitative trait loci for carcass composition and pork quality traits in a commercial finishing cross.
MedLine Citation:
PMID:  16543555     Owner:  NLM     Status:  MEDLINE    
A QTL study for carcass composition and meat quality traits was conducted on finisher pigs of a cross between a synthetic Piétrain/Large White boar line and a commercial sow cross. The mapping population comprised 715 individuals evaluated for a total of 30 traits related to growth and fatness (4 traits), carcass composition (11 traits), and meat quality (15 traits). Offspring of 8 sires (n = 715) were used for linkage analysis and genotyped for 73 microsatellite markers covering 14 chromosomal regions representing approximately 50% of the pig genome. The regions examined were selected based on previous studies suggesting the presence of QTL affecting carcass composition or meat quality traits. Thirty-two QTL exceeding the 5% chromosome-wise significance level were identified. Among these, 5 QTL affecting 5 different traits were significant at the 1% chromosome-wise level. The greatest significance levels were found for a QTL affecting loin weight on SSC11 and a QTL with an effect on the Japanese color scale score of the loin on SSC4. About one-third of the identified QTL were in agreement with QTL previously reported. Results showed that QTL affecting carcass composition and meat quality traits segregated within commercial lines. Use of these results for marker-assisted selection offers opportunities for improving pork quality by within-line selection.
H J van Wijk; B Dibbits; E E Baron; A D Brings; B Harlizius; M A M Groenen; E F Knol; H Bovenhuis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of animal science     Volume:  84     ISSN:  1525-3163     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  2006 Apr 
Date Detail:
Created Date:  2006-03-17     Completed Date:  2006-10-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  789-99     Citation Subset:  IM    
Institute for Pig Genetics, PO Box 43, 6640 AA, Beuningen, The Netherlands.
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MeSH Terms
Body Composition / genetics*
Meat / standards*
Quantitative Trait Loci / genetics*
Swine / genetics*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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