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Table 2 Salmonella isolation from different sample types in broiler farms with or without enrofloxacin (ENR) use *

From: Distribution and dissemination of antimicrobial-resistant Salmonella in broiler farms with or without enrofloxacin use

ENR use

Sample no.

% (no. positive/total no. samples)

Cloacal swab

Litter

Feed

Water

Total

Yes

924

7.5 (29/385) a

8.2 (19/231) a

4.5 (7/154)

0.0 (0/154)

6.0 (55/924) a

No

660

13.8 (38/275) b

15.2 (25/165) b

4.5 (5/110)

0.0 (0/110)

10.3 (68/660) b

Total

1584

10.2 (67/660)

11.1 (44/396)

4.5 (12/264)

0.0 (0/264)

7.8 (123/1584)

  1. *Lowercase (a/b) were used to indicate significant difference in isolation rates between farms with enrofloxacin use and those without; different letters indicate significant differences (P < 0.05)