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  • 1
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    Toxicity of promethazine hydrochloride (Phenergan) to Clarias gariepinus fingerlings (2021)
    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23360 | 19325 | 2018-04-08 17:55:59 | 23360 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: The acute toxicity of promethazine hydrochloride (phenergan) to Clarias gariepinus fingerlings was conducted using static bioassay under laboratory conditions. The 96h LC50 was determined as 172.5 mg/1. Mean mortality was 5, 10, 20, 50, 100% in the concentration of 69, 103.5, 138.0, 172.5 and 207 mg/1 respectively, while there was no mortality in the control treatment. There were significant differences (P〈0.05) on the effect of concentration, the higher the mortality of C. gariepinus fingerlings while toxicity of phenergan increased with duration of exposure. C. gariepinus showed increased hyperactivities, cell deformation, lesions and necrosis during the period of exposure. The physicochemical parameters also showed a slight increase as the concentration increased.
    Description: Includes:- 2 tables.;9 refs.
    Keywords: Aquaculture ; Ecology ; Pollution ; Clarias gariepinus ; Nigeria ; stress ; freshwater environment ; Toxicology ; Histopathology ; Biological stress
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 152-154
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  • 2
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    Anaesthetic effects of potassium permanganate on Heterobranchus bidorsalis (2021)
    FISON | Akure (Nigeria)
    In:  http://aquaticcommons.org/id/eprint/23401 | 19325 | 2018-04-12 08:51:22 | 23401 | Fisheries Society of Nigeria
    Details
    Publication Date: 2021-07-14
    Description: Heterobranchus bidorsalis fingerlings were exposed to the concentration of 0.10, 0.15,0.20,0.25 and 0.30 g/l of potassium permanganate in replicates. The anaesthesia and recovery rates were studied. The 24 hours LC50 of H. bidorsalis fingerlings exposed to potassium permanganate was 0.20g/1. The effects of potassium permanganate increased with increase in concentrations and duration of exposure to certain extent, the anaesthetic time linearly decreased as the concentrations and temperature increased while the recovery time increased from 1- 5min as concentrations increased. The effects of potassium permanganate was reflected in the fish swimming pattern, rapid opercula movements, hyperactivities, surfacing and leisions during exposure for 24 hours. pH, temperature, dissolved oxygen concentration, salinity and conductivity of the test media showed slight increases. Potassium permanganate is a potent anaesthetic for H. bidorsalis and most effective at the concentrations of 0.10-0.20g/l.
    Description: Includes:- 2 tables.;1 fig.;10 refs.
    Keywords: Aquaculture ; Heterobranchus bidorsalis ; freshwater environment ; Anaesthesia ; Anaesthetics ; Fish
    Repository Name: AquaDocs
    Type: conference_item , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 139-142
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