Virulence genes of Escherichia coli vaginal isolates associated with postpartum dysgalactia syndrome in sows

Objective: Identify the occurrence of certain virulence genes Escherichia coli vaginal isolates associated with postpartum dysgalactia syndrome (PDS) in sows. Materials and methods: Two hundred two sows from 5 Macedonian pig farms were clinically examined for PDS 12 to 24 hours after farrowing. Vaginal swabs bacteriological testing taken PDS-affected (PDSA, n = 47) PDS-unaffected (PDSU, 155) In total, 74 E tested by multiplex polymerase chain reaction presence related specific pathogenic strains. Results: Genes extra-intestinal (ExPEC) strains most prevalent among all isolates. The dominant gene was fimC. iss more PDSA compared PDSU (P .02). Multivariable logistic regression showed that lower parity ≤ .001) .003) astA .03) correlated PDS. Implications: Lower vaginally infected particular ExPEC are at higher risk developing Positive found early farrowing Classification into pathotype not possible genotyping only.