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Temporal changes in behavioural responses and serum metabolites of Cirrhinus mrigla exposed to acute hypoxia.

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Title Temporal changes in behavioural responses and serum metabolites of Cirrhinus mrigla exposed to acute hypoxia.
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Creator Varghese T, Mishal P, Gupta G, Kumar M, Pal AK, Dasgupta S
 
Subject amino acids, ammonia, evaluation, free amino acids, hypoxia, lipids, metabolites, mortality, oxygen, oxygen deficiency, stress, tolerance, toxicity, toxicology, ventilation, aquatic animals, aquatic organisms
 
Description Not Available
Aim: The present study was conducted to determine the tolerance to reduced oxygen level (hypoxia) and the behavioural and biochemical responses of mrigal, Cirrhinus mrigala to environmental hypoxia. Methodology: Cirrhinus mrigala were subjected to LC50 test for 96 hr and the mortality were recorded. In a second experiment, the fishes were subjected to a stressful, but safe limit of hypoxia (0.5±0.04 mg l-1) and the behavioral responses and serum metabolites (glucose, lactate, total lipids, free amino acids and ammonia) were evaluated for 96 hrs. Results: A median lethal concentration (LC50, 96 hr) value of 0.25 mg l-1 (dissolved oxygen) was estimated for mrigal. The upper safe limit was 0.49 mg l-1 DO and the lower lethal limit was 0.19 mg l-1 DO. Gill ventilation frequency increased under severe hypoxic conditions and decreased with exposure time. The serum level of glucose, lactate and total lipids increased significantly (P
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Date 2022-06-17T09:03:45Z
2022-06-17T09:03:45Z
2019-01-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/72845
 
Language English
 
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Publisher Not Available