Open AccessJournal Article
Sub-lethal toxicity of potassium cyanide on nile tilapia (oreochromis niloticus): biochemical response
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TL;DR: The alterations in some of the measured serum biochemical parameters which reflect tissue damages, especially in liver and kidney, due to chronic cyanide intoxication in Oreochromis niloticus are clearly indicated and may be used for better understanding the pathophysiology of this toxicity and as an aid in the diagnosis of cyanide poisoning in fishes.
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Abstract: Objective: The present study was carried out to investigate the influences of sublethal toxicity of potassium cyanide (KCN) exposure to Oreochromis niloticus with special reference to blood biochemistry. Methods: Three groups of fish (25 in each group) were treated with different concentrations of 0 (control), 0.1 and 0.2 mg/L KCN for 2 weeks. The Blood samples were drawn after 2 weeks of exposure and serum biochemical analysis including alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), gamma-glutamyl transferase (GGT), glucose, triglyceride, cholesterol, creatinine, total protein, and albumin activities were measured. Results: KCN exposure at both concentrations caused significant (P<0.05) elevation of AST and LDH activities and creatinine concentration as compared to the control. Indeed, ALT, ALP and glucose levels in the fish treated with 0.2 mg/L KCN were significantly higher than those levels from controls. On the other hand, the biochemical parameters including GGT, triglyceride, cholesterol, total protein, and albumin did not change significantly following cyanide exposure. Conclusion: The current study has clearly indicated the alterations in some of the measured serum biochemical parameters which reflect tissue damages, especially in liver and kidney, due to chronic cyanide intoxication in Oreochromis niloticus and may be used for better understanding the pathophysiology of this toxicity and as an aid in the diagnosis of cyanide poisoning in fishes.
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Citations
Effect of Environmental Pollution on the Health of Tilapia spp. from Lake Qarun
Shawky Z. Sabae
- 01 Jan 2015
TL;DR: The results showed that Cd recorded the lowest concentrations, while Fe recorded the highest concentrations in Lake Qarun water, in El-Batts and El-Wadi Drains, while, the plasma creatinine concentrations exhibited an increase in Tilapia spp.
Alterations in the skin of Labeo rohita exposed to an azo dye, Eriochrome black T: a histopathological and enzyme biochemical investigation.
Ayan Srivastava,Neeraj Verma,Arup Mistri,Brijesh Ranjan,Ashwini Kumar Nigam,Usha Kumari,Swati Mittal,Ajay Kumar Mittal +7 more
TL;DR: Histopathological changes and alterations in the activity of certain metabolic and antioxidant enzymes were analyzed in the head skin of Labeo rohita exposed to sublethal test concentrations of the azo dye to reflect a shift from aerobic to anaerobic metabolism.
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Alterations in the activity of certain enzymes in the gills of a carp Labeo rohita exposed to an azo dye, Eriochrome black T: a biochemical investigation
TL;DR: It is indicated that the dye is highly toxic to Labeo rohita and the activity of metabolic and antioxidant enzymes can be used as biomarker for fish toxicity and it is suggested that the Activity of acid phosphatase, catalase, peroxidase, and carboxylesterase remained significantly low as compared to that of control.
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Physico-chemical characteristics and physiological changes in oreochromis niloticus from rosetta branch of the river nile
TL;DR: In this paper, water samples were analyzed for physico-chemical parameters and blood samples for biochemical parameters of the Nile Tilapia; Oreochromis niloticus, to investigate the responses of fish towards these different types of pollution.
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Liver Enzyme Activity of Tilapia zillii and Mugil capito Collected Seasonally from Qarun Lake, Egypt
TL;DR: The results showed that in the two fish species at the studied sites, aspartate aminotransferase activity in the liver showed decreased values in comparison with the control fish samples collected from unpolluted site (fish farm) with percentage ranged between 10.86%-45.56%.
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Effect of replacing soybean meal with cottonseed meal on growth, feed utilization, and hematological indexes for juvenile hybrid tilapia, Oreochromis niloticus × O. aureus
Yi-Rong Yue,Qicun Zhou +1 more
TL;DR: Results show that up to 33.76% CSM can be used to replace ~ 60% of SBM in diets for juvenile hybrid tilapia, and the hepatosomatic index and condition factor were significantly affected by the replacement of S BM by CSM.
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