Table 3 Results of the faecal egg count reduction test (FECRT)

No. of herds^a

12

12

10

No. of samples

71

71

66

Average EPG before treatment ± SD

324.6 ± 387.6

312.7 ± 378.0

280.3 ± 311.1

Average EPG after treatment ± SD

178.2 ± 359.7

23.9 ± 103.1

11.4 ± 43.7

% of samples with EPG = 0 after treatment

26.8

87.3

90.9

No. of farms with EPG > 0 (No. of farms with > 10% of samples with EPG > 0)

12 (8)

6 (4)

2 (0)

FECR in % (95% uncertainty interval)

45 (35–52)

92 (89–95)

96 (93–98)

FECR in % (individual efficacy) (95% uncertainty interval)

62 (48–73)

100 (99–100)

100 (98–100)