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Table 1 Details of the calves sampled and the FECRT values following ivermectin treatment

From: Ivermectin treatment failure on four Irish dairy farms

Calf details (day 0)

% Reduction in faecal egg count on day 14

Farm

Sampling date

No. calves sampled

Mean (s.d.) calf live weight (kg)

Pre-treatment FEC (arithmetic mean)

95% CI

Median

Mode

1

June 28th 2016

15

134 (18.6)

97

3.1–29.3

16.4

17.3

2

June 28th 2016

14

163 (25.3)

90

72.3–84.9

79.4

80.2

3

July 25th 2016

14

138 (14.8)

46

4.2–41.1

23.4

25.9

4

July 27th 2016

12

138 (10.9)

37

54.5–80.9

70

71.7

  1. FECRT Faecal egg count reduction test
  2. CI Confidence interval
  3. S.D Standard deviation