[Disinvasive activity of Briz 25% e.c. against Toxocara canis eggs (experimental studies)].
The insectoacaricid Briz 25% e.c. was tested for its effects on Toxocara canis eggs in pure culture. In the solar-illuminated laboratory at 22-23°C, T. canis eggs of pure culture were destroyed on days 17-18 when in 1.25% aqueous emulsion of the insectoacaricid Briz 25% e.c. (0.313% with reference to the active ingredient cypermethrin). Within the egg, the parasite failed to die not only in the stage of protoblast (5-6 days), but also in the stages of semiformed (4 days) and mobile larva (7-8 days), i.e. for 16-17 days of the experiment. After eggshell destruction, T. canis larvae actively entered the working aqueous emulsion of Briz 25% e.c. and died within the first hours in the test agent. The working aqueous emulsion of Briz 25% e.c. (1.25% with reference to the agent or 0.313% to the active ingredient cypermethrin) exerted ovicidal and larvicidal activities against the pathogen of T. canis in the pure culture on days 17-18 at 22-23°C.
A S
AS
Dovgalev
E A
EA
Pautova
L D
LD
Shchuchinova
D000818:Animals; D000969:Antinematodal Agents / Q000633:toxicity*; D004202:Disinfectants / Q000633:toxicity*; D007814:Larva / Q000187:drug effects / Q000502:physiology; D011722:Pyrethrins / Q000633:toxicity*; D017166:Toxocara canis / Q000187:drug effects* / Q000502:physiology; D015053:Zygote / Q000187:drug effects / Q000502:physiology
D000969:Antinematodal Agents; D004202:Disinfectants; D011722:Pyrethrins; C017160:cypermethrin