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Table 1 Geometric (arithmetic) mean counts of live Ixodes ricinus and Rhipicephalus sanguineus ticks in Study 1

From: Laboratory evaluations of the immediate and sustained effectiveness of lotilaner (Credelio™) against three common species of ticks affecting dogs in Europe

Tick species

Day

Untreated control

Lotilaner

 

Mean

Range

Mean

Range

Efficacy (%)

Comparison

Ixodes ricinus

2

18.3 (18.6)

14–26

0.0 (0.0)

0–0

100 (100)

t (14) = 46.6, P < 0.0001

9

24.5 (24.8)

20–28

0.3 (0.4)

0–1

98.8 (98.5)

t (14) = 21.9, P < 0.0001

16

22.9 (23.6)

13–32

0.0 (0.0)

0–0

100 (100)

t (14) = 32.6, P < 0.0001

23

23.6 (25.1)

11–33

0.0 (0.0)

0–0

100 (100)

t (14) = 23.0, P < 0.0001

30

24.0 (24.6)

16–35

0.5 (0.8)

0–3

98.0 (97.0)

t (14) = 12.7, P < 0.0001

37

24.2 (25.1)

12–35

0.0 (0.0)

0–0

100 (100)

t (14) = 29.4, P < 0.0001

Rhipicephalus sanguineus

2

25.0 (26.8)

9–40

0.0 (0.0)

0–0

100 (100)

t (14) = 21.4, P < 0.0001

9

29.7 (30.5)

18–39

0.0 (0.0)

0–0

100 (100)

t (14) = 37.6, P < 0.0001

16

27.4 (28.6)

15–37

0.0 (0.0)

0–0

100 (100)

t (14) = 28.7, P < 0.0001

23

31.4 (32.3)

21–48

0.0 (0.0)

0–0

100 (100)

t (14) = 40.8, P < 0.0001

30

31.8 (32.6)

19–43

0.1 (0.1)

0–1

99.6 (99.7)

t (14) = 27.6, P < 0.0001

37

29.8 (30.8)

17v41

0.1 (0.1)

0–1

99.6 (99.7)

t (14) = 25.4, P < 0.0001