TABLE 5.

Percentage of Campylobacter-positive samples by sample type

Sample typeNo. (%) of positive samples
AH (n = 105)aAL (n = 144)CH (n = 103)CL (n = 55)Total (n = 407)
Fecal26 (24.76)59 (40.97)38 (36.89)23 (41.82)146 (35.87)
Water line1 (0.95)0 (0)0 (0)0 (0)1 (0.25)
Water cup0 (0)0 (0)0 (0)0 (0)0 (0)
Litter0 (0)2 (1.39)6 (5.83)3 (5.45)11 (2.70)
Feed hopper0 (0)0 (0)0 (0)0 (0)0 (0)
Feeder0 (0)0 (0)0 (0)0 (0)0 (0)
Drag swab6 (5.71)9 (6.25)5 (4.85)5 (9.09)25 (6.14)
Wall swab0 (0)0 (0)0 (0)0 (0)0 (0)
Fan swab0 (0)0 (0)1 (0.97)0 (0)1 (0.25)
Mouse intestine0 (0)2 (1.39)1 (0.97)0 (0)3 (0.74)
Wild bird feces0 (0)3 (2.08)4 (3.88)0 (0)7 (1.72)
Animal feces0 (0)2 (1.39)0 (0)0 (0)2 (0.49)
Insects1 (0.95)3 (2.08)0 (0)0 (0)4 (0.98)
Dirt0 (0)0 (0)0 (0)0 (0)0 (0)
Standing water0 (0)0 (0)1 (0.97)0 (0)1 (0.25)
Boot swab0 (0)1 (0.69)0 (0)1 (1.82)2 (0.49)
Fly strip0 (0)1 (0.69)0 (0)0 (0)1 (0.25)
Cecal dropping9 (8.57)8 (5.56)6 (5.83)5 (9.09)28 (6.89)
Carcass rinse18 (17.14)22 (15.28)24 (23.30)8 (14.55)72 (17.69)
Prechill water0 (0)0 (0)2 (1.94)0 (0)2 (0.49)
Postchill water0 (0)0 (0)0 (0)0 (0)0 (0)
Prescald water7 (6.67)1 (0.69)0 (0)0 (0)8 (1.97)
Postscald water7 (6.67)4 (2.78)1 (0.97)0 (0)12 (2.95)
Pretransport crate swab9 (8.57)13 (9.03)5 (4.85)1 (1.82)28 (6.89)
Post-transport crate swab21 (20.00)14 (9.72)9 (8.74)9 (16.36)53 (13.02)
  • a AH, Arkansas high-production site; AL, Arkansas low-production site; CH, California high-production site; CL, California low-production site. n is the total number of samples.