Table 4.

Cumulative arithmetic mean flea counts of parasites dislodged (dead or moribund) from dogs 5, 10, 15 and 60 min after weekly infestations (days 2, 7, 14, 21 and 28) with adult Ctenocephalides felis on dogs treated with a topical (DPP, n = 8) or an oral (S, n = 8) ectoparasiticide on day 0

	Time post-infestation (min)
	5		10		15		60
Days	DPP1	S1	DPP1	S1	DPP1	S1	DPP1	S1
0	0.0	0.4	0.6	0.5	0.8	0.5	2.9	1.3
2	9.1	0.5	16.8	0.8a	27.6	1.3a	58.0	7.8a
7	10.1	0.3	21.8	0.6a	33.4	0.6a	50.8	4.1a
14	14.6	0.1a	30.5	0.6a	38.5	0.6a	55.4	2.6a
21	6.5	0.1	23.6	0.5a	33.8	1.0a	52.9	1.4a
28	15.5	0.1a	27.8	0.1a	37.9	0.5a	57.6	0.9a
Mean (%)	11.2	0.2	24.1	0.5	34.2	0.8	54.9	3.4
sd	5.7	0.2	10.7	0.2	14.2	0.3	21.4	2.6

DPP dinotefuran, pyriproxyfen, permethrin; S spinosad

^aTreated groups differed from each other (p < 0.05) within each time-point