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Table 1 Group formation and distribution of different farm structures

From: Occurrence of Escherichia coli non-susceptible to quinolones in faecal samples from fluoroquinolone-treated, contact and control pigs of different ages from 24 Swiss pig farms

group code FQ treatment of sows FQ treatment of piglets farrow-to-finish farrowing farrow and rearing rearing and finishing fattening
G1 Trt S + P- + 1 2 (SPS) 1 (SPS) 1 (SPS) 7 (7 SPS)
G2 Ctat S-P-
G3 Trt S-P+ +    2 (1 SPS)   6 (5 SPS)
G4 Ctat S-P-     5 (5 SPS)
G5 Ctrl No FQ usage on farm 2   1   3 (1 SPS)
TOTAL     3 2 (SPS) 4 (2 SPS) 1 (SPS) 14 (8 SPS)*
  1. S sows, P piglets, + = FQ treatment, - = no FQ treatment, SPS part of a sow-pool-system, Trt treated, Ctat contact, Ctrl control