In vivo toxicity of monocrotophos on key metabolites and enzymes of the protein metabolism was investigated in important tissues of the freshwater fish Clarias batrachus. Fish were exposed to 1/10 and 1/20 of LC50 concentration for 28 days. After 28 days of exposure, some fish were transferred to monocrotophos-free water and kept in the same for 21 days (recovery period) in order to study the r...

The toxicity of fluoride (F) to 16-cm long fresh water male catfish (Clarias batrachus, Linn.) was evaluated after their exposure to two sub-lethal concentrations of NaF (35 mg F ion/L and 70 mg F ion/L) for 90 days. Changes in biochemical parameters in muscle, liver, and testis tissues were recorded. Significant depletion of total protein and lipids in these tissues occurred at both the lower ...

Anthropogenic activities has increased the discharge of various concentrations of both essential and nonessential metals into aquatic ecosystems. The present study has been conducted to determine the median lethal concentration of chromium to the freshwater fish Clarias batrachus following standard procedures and was found that 40.56ppm, 38.15ppm, 36.65 ppm and 35.50ppm for 24h, 48h, 72h and 96...

The activities of mitochondrial malate dehydrogenase (mMDH) and the total mitochondrial proteins increase as a function of body mass in the freshwater catfish, Clarias batrachus. It clearly indicates an increase in energy production in larger-sized individuals for various purposes including prey-predator interactions. The higher activity of lactate dehydrogenase (LDH) in larger fish may indicat...

Present study examined the impact of copper (Cu) as nanoparticle (Cu-NPs) and soluble form (CuSO4) in adult male catfish Clarias batrachus. Following treatment, upregulation of transcripts of several testis-related genes and increased androgen levels were evident. Though profound promotional effect was seen at gene and androgen levels, structural analysis revealed completely different scenario....

From the last decade the pond has been suffering from the resource of water due to decline rain fall, variable climate, and geologic conditions. Thus, so many of areas of the India suffer from severe water shortage like Chhatarpur. Ichthyodiversity increases the economic success of the fisheries pond and implies that the area has become more efficient. A fish are not only useful as source of fo...

Starvation induced changes in citrate synthase (CS), glucose-6-phosphate dehydrogenase (G6-PDH), lactate dehydrogenase (LDH), DNA, RNA, RNA/DNA ratio and protein were studied in the freshwater catfish Clarias batrachus. Starvation gradually decreased the activity of CS, G6-PDH and LDH in brain, liver and skeletal muscle of the freshwater catfish. The maximum reduction in these enzyme activities...

Kinetics of triiodothyronine (T3) induced changes were studied in cytoplasmic malate dehydrogenase (cMDH), mitochondrial malate dehydrogenase (mMDH) and lactate dehydrogenase (LDH) of the liver and skeletal muscle of a catfish, Clarias batrachus. The rates of gradual inductions in the activities of all the three metabolic enzymes were faster in skeletal muscle than those of the liver. These tim...