Abstract
Comparative studies on effects of CVP and BVP insecticides in sublethal concentrations on young rainbow trout (Salmo gairdneri Rich.) were carried out under laboratory conditions. The insecticide effect was inferred from enzymatic and haematologic analyses. One experiment involved a 14-day exposure to insecticide concentrations corresponding to 5% of 96-h LC50, followed by the brain acetylcholinesterase, blood peroxidase and catalase activity assessment and determination of haematologic indices. The other experiment involved observing changes in the brain acetylcholinesterase activity over 30 days following the 24-h exposure to concentrations corresponding to 50% of 24-h LC50.
Highlights
Comparative studies on effects of CVP and BVP insectici des in sublethal concentrations on young rainbow trout (Salmo gairdneri Rich.) were carried out under laboratory conditions
The observations can contribute to a better understanding of mechanisms of the insecticide toxic on a fish organism
The studies carried out on rainbow trout (Salmo gairdneri Rich.) showed CVP to be more toxic than BVP
Summary
Comparative studies on effects of CVP and BVP insectici des in sublethal concentrations on young rainbow trout (Salmo gairdneri Rich.) were carried out under laboratory conditions. One experiment involved a 14-day exposure to insecticide concentrations corresponding to 5% of 96-h LC50, followed by the brain acetylcholines terase, blood peroxidase and catalase activity assessment and determination of haematologic indices. The other experiment involved observing changes in the brain acetylcholinesterase activity over 30 days following the 24-h exposure to concentrations corresponding to 50% of 24-h LCso, INTRODUCTION. The previous paper by the same author (Piotrowska, 1980) reported results of the studies on acute toxicity (LC50) and effects of lethal concentrations of CVP and BVP insecticides on selected enzymes and haematologic indices of rainbow trout. The effect of sublethal concentrations of these insecticides are compared basing on. The observations can contribute to a better understanding of mechanisms of the insecticide toxic on a fish organism
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