Feeding behavior and brain acetylcholinesterase activity in bream (Abramis brama L.) as affected by DDVP,an organophosphorus insecticide |
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| Affiliation: | 1. Department of Cell Biology and Histology, Faculty of Biology, University of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain;2. Centro Oceanográfico de Murcia, Instituto Español de Oceanografía (IEO), Carretera de la Azohía s/n, Puerto de Mazarrón, 30860 Murcia, Spain;1. Department of Zoology, Savitribai Phule Pune University, Pune 411007, India;2. School of Animal and Veterinary Sciences, Faculty of Science, Charles Sturt University, Wagga Wagga, NSW 2678, Australia |
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| Abstract: | 1. Bream (Abramis brama) were exposed to sublethal concentration of organophosphorus insecticide DDVP and the amount of food consumed and brain acetylcholinesterase (AChE) examined in exposed fish.2. Exposure to DDVP resulted in decreased amount of food consumed and inhibited brain AChE activity.3. Intraperitoneal injection of the fish with cholinergic drugs, atropine and TMB-4 recovered the feecling efficiency in exposed fish. TMB-4 recovered brain AChE activity as well.4. The results revealed that cholinergic system in fish brain constitutes biochemical mechanism controlling feecling behavior in fish. |
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