Comparative efficacy on dogs of a single topical treatment with fipronil/(S)-methoprene or weekly physiological hygiene shampoos against Ctenocephalides felis in a simulated flea-infested environment

Open Access

Table 2.

Statistical analysis of the flea counts.

Groups		Day -1	Day 3	Day 10	Day 17	Day 24	Day 31	Day 38	Day 45	Day 51	Day 60
Untreated control	Arithmetic mean	51	56	61.67	63.33	60	65.33	69.5	74.17	54	46.17
	Geometric mean¹	38.73	45.34	55.27	56.14	53.35	59.88	63.2	66.63	40.68	31.16

Hygiene shampoo	Arithmetic mean	43.33	13.17	22.33	17.17	23.67	27.67	22.17	30.33	45.83	32.17
	Geometric mean¹	39.98	9.43	14.72	12.88	17.13	19.51	14.32	20.91	26.54	19.8

FRONTLINE^® Plus	Arithmetic mean	57.17	0	0.33	0.67	0.17	0.33	0	0.5	0	0
	Geometric mean¹	38.44	0	0.26	0.51	0.12	0.2	0	0.26	0	0

P (statistical difference at p < 0.05 between the 2 treatment groups)		NS	0.011	0.0035	0.0062	0.0044	0.004	0.0048	0.0051	0.0048	0.0047

Geometric mean

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