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...
