Table 1.
Tick counts on dogs 48 h after environmental challenges by treatment group and percentage efficacies.
| Group 1 – Control group |
Group 2 – Advantix-treated group |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Live ticks |
Dead ticks |
Live ticks |
Dead ticks |
||||||||||
| Day | Free | Att; Ue | Att; E | Free | Att; Ue | Att; E | Free | Att; Ue | Att; E | Free | Att; Ue | Att; E | Efficacy (%) based on arith. mean (geo. mean#) |
| +9* | 0.0 (0.0) | 7.0 (6.7) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.5 (0.3) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 92.9 (96.1) |
| +16* | 0.0 (0.0) | 9.5 (8.0) | 2.8 (2.1) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.2 (0.1) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 98.6 (98.9) |
| +23* | 0.0 (0.0) | 10.3 (11.1) | 1.8 (1.6) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.3 (0.2) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 97.3 (98.3) |
| +30 | 0.0 (0.0) | 18.5 (17.7) | 2.3 (2.1) | 0.0 (0.0) | 0.5 (0.3) | 0.8 (0.7) | 0.0 (0.0) | 0.5 (0.3) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 0.0 (0.0) | 97.6 (98.3) |
*In situ counts. #The geometric means of Group 2 differed statistically significantly (p < 0.05) from those in Group 1 in all cases. Att = Attached; Ue = Unengorged; E = Engorged; Geo = geometric; Arith = Arithmetic.