Studies on acute toxicity of piscicidal plant extracts (&lt;i&gt;Tetrapleura Tetraptera&lt;/i&gt;)on tilapia (&lt;i&gt;Sarotherodon Galilaeus&lt;/i&gt;) fingerlings

Omitoyin, BO; Ogunsanmi, A. O.; Adesina, BT

doi:10.4314/tjas.v2i2.49700

Cited by 15 publications

(12 citation statements)

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“…At the agricultural dose of 1.13 ppm of diazinon 60 EC, mild pyktonic and necrotic hepatocytes, hypertrophy and in a few cases vacuolation were observed on all the fish species (1) . However, at the highest concentration of 60 mg/l of NaF severe degenerative changes such as necrosis, pyknosis, vacuolation, rupture of blood vessel causing hemorrhage were observed and this agreed with findings of Omitoyin et al (1999) (5) . Severe brain damage was observed in fish exposed to 60 mg/l of the herbicide and there was mononuclear cellular infiltration of the cerebral meninges and neuronal degeneration.…”

Section: Resultssupporting

confidence: 91%

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Toxicity of sodium fluoride (NaF) to juvenile catfish, Clarias batrachus

Sharmin

Billah

Ahmed

et al. 2013

Dhaka Univ. J. Biol. Sci

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Effects of sodium fluoride (NaF) on Clarias batrachus in the aquarium at a sub lethal dose of 0, 15, 30, 40, 50 and 60 mg/l for a chronic exposure period of 120 days were evaluated. The histopathological alterations in different tissues from brain, gill and liver were examined in fishes showed abnormal behaviors. Such as rupture of hepatocytes, congestion, necrosis pyknosis, cellular infiltration, and degenerative changes. In case of liver, individualization of hepetocytes, mild necrosis, vacuolation, pyknosis and hemorrhage were observed. These results suggest that NaF affects severely on the tissues of the internal organs leading to threat of life and survival. Dhaka Univ. J. Biol. Sci. 22(1): 1-7, 2013 (January)

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Section: Resultssupporting

confidence: 91%

“…The exposure period was 120 days for all the concentrations including the controls. Fishes were treated by the method as described by Chakraborti et al (2) and Omitogin et al (5) . The experiment was carried out in laboratory at room temperature of 28.1ºC and pH 6.0 -7.0, respectively.…”

Section: Methodsmentioning

confidence: 99%

Toxicity of sodium fluoride (NaF) to juvenile catfish, Clarias batrachus

Sharmin

Billah

Ahmed

et al. 2013

Dhaka Univ. J. Biol. Sci

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“…The water quality parameters obtained in the present study are within the range of water quality recommended for culturing tilapia species (Olaifa et al 2008 (Omitoyin et al 1999;Omitoyin et al 2006;Pandey et al 2008). Verma et al (1982) recorded values of 5.14, 4.8, 4.67 and 4.57 mg l -1 for 24, 48, 72, and 96 h respectively in Heteropneustes fossilis exposed to dimethoate; at different seasons the 96-h values were 14.39 and 2.98 mg l -1 for the dry and wet season respectively (Pandey et al, 2008).…”

Section: Discussionsupporting

confidence: 80%

Potential of <i>Moringa oleifera</i> (Lam.) fresh root-bark extract as an organic piscicide in aquaculture pond management

Adesina¹,

Omitoyin²

2011

Egypt. J. Bio.

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This study examined the effectiveness of Moringa oleifera fresh root-bark extract as an organic piscicide to control predatory fish in ponds. Acute-lethal toxicity (LC 50 ) of Moringa oleifera extract for 96-h exposure for Oreochromis niloticus fingerlings was determined at 26.45 mg l -1 . The extract was more toxic at higher concentrations of 100 mg l -1 , with fingerlings showing abnormal swimming, restlessness and uncoordinated behaviour before death. Moringa oleifera extract could be used as an organic piscicide in aquaculture pond management. Baseline information on its toxicity to fish could serve as a tool in fisheries management to wipe out predatory fish in ponds prior to stocking.

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“…The liver of G. giuris in the control was normal without necrosis, hepatocytes and other cells were normal and systematically arranged. Tissue sample of the liver from fishes treated with 0.004, 0.032, and 0.064 ppm of diazinon showed marked degenerative changes, severe necrosis, pyknosis, haemorrhage and vacuolation in all the tested fish which is in agreement with the findings of for Anabas testudineus, Channa punctatus, and Barbodes gonionotus; and Omitoyin et al (1999) for Sarotherrodon galilaeus. Dubala and Shah (1979) exposed Channa punctatus to 1.0 ppm malathion and reported either damage or disintegration in about one third of hepatic cells and acute shrinkage of nuclear materials.…”

Section: Discussionsupporting

confidence: 78%

Histopathological changes in the gonads, liver, and kidney of Glossogobius giuris exposed to sub-lethal concentration of diazinon

et al. 2017

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The organophosphorus insecticide, diazinon that is widely used in agricultural field and private industrial premises to control pests, easily accumulates in aquatic ecosystems and exerts toxic effects on aquatic animals. The study aimed to evaluate the acute toxicity (LC50) of diazinon on Glossogobius giuris and histopathological alterations of its gonads, liver and kidney due to the effect of this insecticide. G. giuris were exposed to different concentrations of diazinon ranging from 0.00025 ppm to 2.048 ppm with parallel untreated control. At the doses of 0.0005 ppm, 0.001 ppm, 0.002 ppm, and 0.004 ppm 40%, 50%, 70%, and 90% mortality of G. giuris were observed within 96 hrs, respectively, whereas, 100% mortality was observed at doses above 0.008 ppm. Based on probit analysis, the LC50 value of diazinon for 96 hrs of exposure on G. giuris was found as 0.001 ppm. During the exposure trial several behavioral alterations including restlessness, sudden and quick movements, loss of equilibrium, increased opercular activities and paralysis were observed in the fish. The histopathological changes observed in the tissues of G. giuris indicate that sub lethal concentration as well as higher concentration caused moderate to severe alterations in the liver, kidney as well as gonads. Kidney was found to be the most seriously affected organ compared to gonads and liver. Major histopathological changes like fragmentation of testis and ovary with ruptured wall, karyolysis, hypertrophy, pyknosis and degenerative changes such as necrosis of tubular and haematopoietic cells of kidney, necrotic hepatocytes, pyknosis, hypertrophy, haemorrhage and vacuolation were observed in the liver cells. The present study demonstrated that diazinon is highly toxic especially to G. giuris and thus, indiscriminate use of this insecticide in the agriculture and industrial sectors should be strictly controlled.Progressive Agriculture 27 (4): 530-538, 2016

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Studies on acute toxicity of piscicidal plant extracts (<i>Tetrapleura Tetraptera</i>)on tilapia (<i>Sarotherodon Galilaeus</i>) fingerlings

Cited by 15 publications

References 0 publications

Toxicity of sodium fluoride (NaF) to juvenile catfish, Clarias batrachus

Toxicity of sodium fluoride (NaF) to juvenile catfish, Clarias batrachus

Potential of <i>Moringa oleifera</i> (Lam.) fresh root-bark extract as an organic piscicide in aquaculture pond management

Histopathological changes in the gonads, liver, and kidney of Glossogobius giuris exposed to sub-lethal concentration of diazinon

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