Title: The possibility of positive selection for both F18(+)Escherichia coli and stress resistant pigs opens new perspectives for pig breeding
Authors: Coddens, Annelies ×
Verdonck, Frank
Mulinge, Martin
Goyvaerts, Els
Miry, Cora
Goddeeris, Bruno
Duchateau, Luc
Cox, Eric #
Issue Date: Jan-2008
Series Title: Veterinary microbiology vol:126 issue:1-3 pages:210-5
Abstract: F18(+)Escherichia coli infections causing post-weaning diarrhoea and/or oedema disease are a major cause of economic losses in pig industry. To date, no preventive strategy can protect pigs from F18(+)E. coli infections. One of the most attractive approaches to eliminate F18(+)E. coli infections is the selection for pigs that are resistant to F18(+)E. coli infections. However, this strategy was not believed to be favourable because of reports of genetic association with the stress-susceptibility gene in the Swiss Landrace. To investigate this potential association more thoroughly, 131 randomly selected Belgian hybrid pigs were genotyped for both the F18(+)E. coli resistance alleles (FUT1(A)) and the stress-susceptibility alleles (RYR1(T)) and their association was investigated by determining the linkage disequilibrium. This linkage disequilibrium (LD=-0.0149) is close to zero and does not differ significantly from 0 (likelihood ratio test chi(1)(2)=1.123, P=0.29), demonstrating no association between the FUT1(A) and RYR1(T) alleles. Furthermore, only a small fraction (4.6%) of the Belgian pigs was found to be resistant to F18(+)E. coli infections. Our results suggest that selection for F18(+)E. coli resistant pigs might be an attractive approach to prevent pigs from F18(+)E. coli infections, unlike to what has previously been postulated.
ISSN: 0378-1135
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Gene Technology (-)
× corresponding author
# (joint) last author

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