Table 2.
Mean arithmetic on animal tick counts six hours after infestation of dogs with Rhipicephalus sanguineus
| Day | Arithmetic mean tick counts 6 hours after infestationa | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Control | Advantix® | NexGard™ | Bravecto™ | ||||||||||
| M | M | F | df | P | M | F | df | P | M | F | df | P | |
| Day 30 | 20.1 | 3.3 | 8.12 | 3 | 0.0005 | 15.5 | 8.12 | 3 | 0.2920 | 22.9 | 8.12 | 3 | 0.5283 |
| Day 35 | 35.0 | 3.4 | 17.07 | 3 | < 0.0001 | 27.3 | 17.07 | 3 | 0.1092 | 26.9 | 17.07 | 3 | 0.0939 |
| Day 42 | 31.6 | 2.3 | 32.17 | 3 | < 0.0001 | 24.5 | 32.17 | 3 | 0.0366 | 26.6 | 32.17 | 3 | 0.1346 |
| Day 49 | 35.4 | 1.1 | 27.53 | 3 | < 0.0001 | 34.6 | 27.53 | 3 | 0.8665 | 31.1 | 27.53 | 3 | 0.3444 |
| Day 56 | 33.4 | 2.6 | 16.24 | 3 | < 0.0001 | 29.3 | 16.24 | 3 | 0.4017 | 26.1 | 16.24 | 3 | 0.1457 |
| Day 63 | 32.0 | 6.3 | 9.30 | 3 | < 0.0001 | 25.8 | 9.30 | 3 | 0.2447 | 27.1 | 9.30 | 3 | 0.3619 |
| Day 70 | 27.6 | 0.6 | 34.78 | 3 | < 0.0001 | 24.6 | 34.78 | 3 | 0.3224 | 23.4 | 34.78 | 3 | 0.1646 |
| Day 77 | 25.5 | 2.6 | 10.24 | 3 | < 0.0001 | 23.4 | 10.24 | 3 | 0.6452 | 18.1 | 10.24 | 3 | 0.1175 |
| Day 84 | 32.4 | 1.8 | 59.82 | 3 | < 0.0001 | 34.9 | 59.82 | 3 | 0.3882 | 31.1 | 59.82 | 3 | 0.6646 |
Abbreviations: M, arithmetic mean; F, F-statistic; df, degrees of freedom; P, P-value (one-way ANOVA with a treatment effect in comparison with control group)
acounts based on ticks attached to the dogs, excluding ticks in the crates