A total fo 2, 511 fresh fecal samples from healthy brood sows on 27 farms was examined for Salmonella. Of these, 58 (2.3%) samples from 10 (37.0%) farms were positive for
Salmonella. Among 58 isolaties, 12 serovars were identified:
S. Derby (13 strains, 22.4%),
S. Typhimurium (12 strains, 20.7%),
S. Infantis (11 strains, 19.0%),
S. London (8 strains, 13.8%),
S. Agona (7 strains, 12.1%),
S. Anatum (1 strain, 1.7%), S. Brandenburg (1 strain, 1.7%),
S. Meleagridis (1 strain, 1.7%),
S. Muenster (1 strain, 1.7%), S. Salinatis (1 strain, 1.7%),
S. Senftenberg (1 strain, 1.7%), and S. Weltevreden (1 strain, 1.7%). Isolation rates on the 10 farms were in the range of 26.0-12.2%. From 2 farms, 4 to 3 serovars were detected. S. Derby was detected from 3 and S. Agona from 2 farms.
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