Table 4.
Geometric (arithmetic) mean counts of live Dermacentor reticulatus ticks and dead, attached, engorged ticks in Study 2
Tick species | Day | Untreated control | Lotilaner | Comparison | |||
---|---|---|---|---|---|---|---|
Mean | Range | Mean | Range | Efficacy (%) | |||
Dermacentor reticulatus | 2 | 45.6 (45.8) | 40–52 | 0.4 (0.6) | 0–2a | 99.0 (98.6) | t (14) = 18.8, P < 0.0001 |
9 | 34.6 (35.0) | 26–42 | 0.0 (0.0) | 0–0 | 100 (100) | t (14) = 60.7, P < 0.0001 | |
16 | 37.3 (38.0) | 23–48 | 0.2 (0.3) | 0–2b | 99.6 (99.3) | t (14) = 22.5, P < 0.0001 | |
23 | 32.7 (33.4) | 19–42 | 0.0 (0.0) | 0–0 | 100 (100) | t (14) = 42.8, P < 0.0001 | |
30 | 29.8 (31.6) | 16–48 | 0.0 (0.0) | 0–0 | 100 (100) | t (14) = 26.0, P < 0.0001 | |
37 | 28.1 (29.3) | 15–44 | 0.0 (0.0) | 0–0 | 100 (100) | t (14) = 30.6, P < 0.0001 |
aOn Day 2, 48 hours post-treatment, ticks on three dogs, all were dead, attached and engorged
bOn Day 16, a single lotilaner dog was infested. This dog had one live free tick and one dead attached/engorged tick