Introduction Organophosphate (OP) insecticides are commonly used in veterinary practice and public health (Coggon 2002; Jaga & Dharmani 2003; Wilson 2005). They induce poisoning in mammals and avian species by irreversible inhibition of cholinesterase (ChE) activity at the nerve terminals and neuromuscular junctions causing accumulation of acetylcholine. As a result of ChE inhibition, signs of ...
