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Table 2 Mean number of live attached ticks and attachment rate (%) in the untreated control group by study day

From: Efficacy of a fixed combination of permethrin 54.5% and fipronil 6.1% (Effitix®) in dogs experimentally infested with Ixodes ricinus

  Day 2 Day 9 Day 16 Day 23 Day 30 Day 37
Mean 21.3 (71%) 17.0 (57%) 16.5 (55%) 19.7 (66%) 20.8 (69%) 20.7 (69%)
Minimum 17 (57%) 13 (43%) 12 (40%) 16 (53%) 15 (50%) 19 (63%)
Maximum 26 (87%) 21 (70%) 22 (73%) 25 (83%) 25 (83%) 23 (77%)
SD 3.1 (10%) 3.7 (12%) 3.8 (13%) 3.1 (10%) 3.8 (13%) 1.6 (5%)
  1. Mean: Arithmetic mean, SD: standard deviation.