Table 2 Percent repellency and prevention of attachment of D. reticulatus in dogs treated with the new combination of fipronil and permethrin from thumb counts at 4, 12 and 24 h post-infestation
Mean number of ticks (live or dead, attached or free) on dog | Repellency (%) | Mean number of attached ticks counted on dog | Prevention of attachment (%) | ||||
|---|---|---|---|---|---|---|---|
Infestation day | Time post-infestation | Untreated control group (10 dogs) | Treated group (10 dogs) | Untreated control group (10 dogs) | Treated group (10 dogs) | ||
1 | 4 h | 39.1 | 14.6 | 62.5 | 37.4 | 13.0 | 65.2 |
7 | 34.7 | 9.2 | 73.5 | 32.9 | 7.4 | 77.6 | |
14 | 34.5 | 9.5 | 72.5 | 31.9 | 6.5 | 79.7 | |
21 | 35.3 | 12.7 | 63.9 | 32.6 | 8.8 | 72.9 | |
28 | 35.6 | 15.5 | 56.5 | 33.3 | 12.0 | 64.1 | |
1 | 12 h | 35.5 | 8.4 | 76.3 | 35.3 | 7.4 | 79.1 |
7 | 33.5 | 2.4 | 92.9 | 32.8 | 1.9 | 94.2 | |
14 | 36.8 | 3.6 | 90.3 | 36.2 | 3.0 | 91.7 | |
21 | 36.5 | 7.1 | 80.5 | 36.1 | 5.5 | 84.7 | |
28 | 33.1 | 6.7 | 79.8 | 32.6 | 5.2 | 84.1 | |
1 | 24 h | 32.5 | 5.2 | 83.9 | 32.4 | 5.1 | 84.2 |
7 | 33.3 | 1.2 | 96.5 | 33.0 | 0.1 | 99.6 | |
14 | 35.9 | 1.6 | 95.5 | 35.7 | 1.1 | 96.8 | |
21 | 32.8 | 3.4 | 89.7 | 32.6 | 1.6 | 95.0 | |
28 | 30.8 | 1.9 | 93.7 | 30.8 | 1.8 | 94.1 | |