[Effect of temephos on the acetylcholinesterase activity of the brain of Tilapia guineensis. 1: Experimental study at operative doses].


After having exposed during 10 minutes the Tilapia guineensis to a concentration of 0,05 mg/l of temephos (concentration of a larvicide used for the field test), the authors note a lowering of the acetylcholinesterastic activity of the brain to an order of 25%. The return to a normal activity is achieved within 20 to 25 days. A new exposure, happening one… (More)


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