The present work deals with the histoenzymological distribution pattern of enzyme acetylcholinesterase (E.C.3.1.1.7) in the different layers of olfactory bulb of Channa punctatus by employing a modified technique to visualize acetylcholinesterase containing neurons. Acetylcholinesterases distribution in the olfactory bulb shows a precise laminar distribution of enzyme which is alternatively mil...

Plasma from estrogenized, [32P] NaH2PO4-injected murrel, Channa punctatus was collected in the presence of proteolytic inhibitors and subjected to different separation procedures singly or in combination, viz., gel filtration chromatography on Ultrogel AcA 34, ion-exchange chromatography on DEAE sephacel, or selective precipitation with dimethylformamide or with Mg2+: EDTA in order to isolate v...

The present study was aimed to investigate the impact of Chromium trioxide on biochemical parameters of freshwater fish, Channa punctatus exposed to sub lethal concentration for 7, 15, 30 and 60 days. Aspartate transaminase (AST), Alanine transaminase (ALT), Orthophosphoric Monoester Phospho-hydrolase (OMP) and Orthophosphoric acid Monoester Phospho-hydrolase (OAMP) activities have been analyse...

Freshwater fish, Channa punctatus was exposed to sublethal concentration of a chloroacetanilide herbicide alachlor technical grade and lasso 50% EC for a period of 10 days. The histopathological changes in the gill include: necrosis, vacuolar degeneration, fusion and atrophy of primary and secondary gill lamellae. The tissue damages like degeneration of cytoplasm in hepatocytes, atrophy formati...

The genus Pallisentis has been mostly found among the freshwater fishes of Channidae family. ophiocephali is characterized with some unique characters proboscis, hooks, and spines. However, initial description a little sketchy yet not updated. present study communicates detail morphology an acanthocephalan species obtained from two host family—Channa striatus Channa punctatus—during one-year su...

Effect of Chlorpyrifos (Dursban) an organophosphate insecticide on the glycogen, cholesterol, protein, alkaline phosphatase and acid phosphatase in liver in Channa punctatus (Bloch) exhibited notable alterations. Liver being the main site of metabolic activity in body and highly active in both toxifying and detoxifying insecticides, was selected for the study purpose. Chlorpyrifos insecticide c...

The presence of insecticide in the environment, due to extensive use in agriculture is of potential toxicological concern for fish. Histotoxicological studies have been widely used as biomarkes in the evaluation of the health of fish exposed to the pesticides studies. In the present study the hazardous effect of the organophosphate insecticide, Fenitrothion on the histology of the fresh water f...

Sub-chronic exposure (15 days) of Channa punctatus to sub-lethal concentrations of zinc (10, 15 and 25 Zn mg l(-1)) resulted in a significant decline of hepatic and ovarian glycogen, cholesterol, total proteins and total lipids. DNA and RNA contents were also estimated in the ovary. These parameters simultaneously decline with an increase in dose and duration of the experiment. A decline in all...