Effects of Sublethal Concentrations of Portland Cement Powder in Solution on the Aminotransferases of the African Catfish (Clarias Gariepinus (Burchell, 1822))

2008 ◽  
Vol 18 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Kabir Mohammed Adamu ◽  
Isioma Kate Iloba
Keyword(s):  
Portland Cement ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Cement Powder ◽  
Sublethal Concentrations

The Effect of Sublethal Concentrations of Paraquat on the Tissue Aminotransferases of the African Catfish: Clarias gariepinus

2007 ◽  
Vol 1 (2) ◽  
pp. 98-101 ◽  
Author(s):  
Kori-Siakpere . ◽  
Ovie . ◽  
Adamu . ◽  
Kabir Mohammed and Salubi . ◽  
Oghenevware .
Keyword(s):  
Clarias Gariepinus ◽  
African Catfish ◽  
Sublethal Concentrations

scholarly journals Histopathological Effects of Gammalin 20 on African Catfish (Clarias gariepinus)

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Lawrence Ezemonye ◽  
Temiotan Emmanuel Ogbomida
Keyword(s):  
Clarias Gariepinus ◽  
Sublethal Concentration ◽  
Behavioural Response ◽  
African Catfish ◽  
Histopathological Changes ◽  
Secondary Lamella ◽  
Dose Dependent ◽  
Histopathological Effects ◽  
Sublethal Concentrations ◽  
Static Bioassay

Clarias gariepinusfingerlings exposed to lethal and sublethal concentrations of Gammalin 20 were investigated in a renewal static bioassay with particular reference to behaviour, survival, and histopathological changes. Early symptoms of gammalin 20 lethal poisoning were, respiratory distress, increased physical activity, convulsions, erratic swimming, loss of equilibrium, and increased breathing activity. Behavioural response was dose dependent and decreased with decreased concentration. The 96-hour lethal concentration (LC50) value was 30 ppb. Histopathological changes of the gill, liver, and intestinal tissues of fish treated with sublethal concentration of gammalin 20 for twelve weeks showed gill distortion and fusion of adjacent secondary lamella as a result of hyperplasia and excessive mucus accumulation. The liver showed swelling of hepatocytes with mild necrosis, pyknosis, and vacuolation, while the intestine showed yellow bodies of the lamina propria at the tip of the mucosal fold.

scholarly journals Effect of Sublethal Dose of Dichlorvos on the Biochemical Parameters of African Catfish

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Achikanu CE ◽  
Ani ON
Keyword(s):  
Total Protein ◽  
Biochemical Parameters ◽  
Liver Enzymes ◽  
Clarias Gariepinus ◽  
Sublethal Dose ◽  
Control Group ◽  
Average Weight ◽  
African Catfish ◽  
Serum Total Protein ◽  
Sublethal Concentrations

The present study investigated the effects of sublethal concentrations of dichlorvos on liver marker enzymes (aspartate aminotransferase, alanine aminotransferase and alkaline phosphatase), acid phosphatase (ACP), serum total protein (STP), bilirubin, urea and creatinine in African Catfish (Clarias gariepinus) juveniles at sub acute period under laboratory conditions. A total of 90 juveniles of Clarias gariepinus with average weight and length of 200.15 ± 0.09g and 26.00 ± 0.00cm respectively were kept in three experimental groups of 30 per group in triplicate of 10 fishes. Groups 1 and 2 were exposed to dichlorvos at dosages of 21 and 43mg/l respectively and group 3 served as control for 15 experimental days. Analyses were carried out on days 1, 5, 10 and 15. From the results, there was no significant changes in the biochemical parameters tested on day 1 of the experiment but levels of the liver enzymes, ACP and bilirubin increased significantly (p<0.05) on other experimental days when compared with the control group. However, there was insignificant increase in the urea level and also a non-significant decrease in the creatinine and Serum total protein (STP) levels of the experimental groups when compared with the control group. From the analyses and observations made, we conclude that the administration of sublethal concentrations of dichlorvos to African catfish induced some damages to the liver which affected the levels of the liver enzymes and the increase in ACP level is indicative of carcinogenicity.

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