The toxic effect of binary and tertiary combinations of Euphorbia hirta Linn latex powder with other plant molluscicidal compounds, were evaluated against the freshwater snails Lymnaea (Radix) acuminata and Indoplanorbis exustus in pond. These combinations showed significant time and dose dependent effect against both the snails. These compounds at higher doses were also lethal to freshwater fi...

In the present investigation live specimens of Channa punctatus were collected, after acclimatization they were chronically exposed to sublethal concentrations of mercuric chloride for 15 and 30 days. As compared to the control fish, Mercury treated fish kidney showed marked histopathological changes. After 15 days the alterations detected initially were the widening of space between the capsul...

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...

The present study was conducted to investigate the helminth parasites of fish. During this study a new species of genus Camallanus Railliet and Henry, 1915 (Nematoda: Camallanidae) is described from specimens found in the swim bladder of Channa orientalis Bloch and Schneider, 1801 collected from River Gwarko in Panjgur (Balochistan). This new species Camallanus boomkeri n. sp. differs from othe...

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...

This study was designed in such a way to assess the toxicity effect of 2,4D (Dichlorophenoxyacetic acid) pesticide in fish physiology and its antioxidant stress. Channa striatus fish were administered with two different doses compensation of 2,4-D pesticide of 100 and 200 mg/kg. After a matter of time interval the effect of 2,4-D on fish behavior and its toxic level was determined by assessing ...

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...

Seven polymorphic microsatellite loci were isolated and characterized for the snakehead murrel, Channa striata (Channidae), a valuable tropical freshwater fish species. Among 25 specimens collected from Kedah state in Malaysia, the number of alleles per locus ranged from 2 to 7. Observed and expected heterozygosities ranged from 0.120 to 0.880 and 0.117 to 0.698, respectively. A single locus (C...

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...

Effects of oral administration of Channa striatus extract were evaluated in rabbits with experimentally-induced osteoarthritis (OA) in a stifle joint. Changes after the treatment were evaluated by radiography, and innervation of the synovial membranes was assessed by immunohistochemistry. There was a significant reduction in soft tissue swelling observed in radiographs for treated animals 9 wee...