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Table 3 Analysis of acaricidal efficacy (Rhipicephalus sanguineus) based on geometric means

From: Repellency and acaricidal efficacy of a new combination of fipronil and permethrin against Ixodes ricinus and Rhipicephalus sanguineus ticks on dogs

4-h assessments 24-h assessments
Day Control mean Treated dogs Mean (Efficacy %) p-value Day Control mean Treated dogs (Efficacy %) p-value
Day 2 32.7 1.6 (95.1 %) <.0001 Day 3 27.9 0.0 (100.0 %) <.0001
Day 7 33.8 0.1 (99.7 %) <.0001 Day 8 30.2 0.0 (100.0 %) <.0001
Day 14 33.5 1.5 (95.6 %) <.0001 Day 15 29.3 0.0 (100.0 %) <.0001
Day 21 32.7 1.7 (94.7 %) <.0001 Day 22 32.5 0.4 (98.9 %) <.0001
Day 28 34.4 9.8 (71.4 %) <.0001 Day 29 30.9 0.7 (97.7 %) <.0001
  1. Group 1: Negative control
  2. Group 2: Dogs were treated with Frontline Tri-Act®