Acute Toxicity of Lamda-Cyhalothrin and the Histopathological Changes of Gill and Liver Tissues of Tilapia (Oreochromis niloticus)

2019 ◽  
Vol 86 (sp1) ◽  
pp. 235
Author(s):  
Juliet Selvarani Arulraj ◽  
Padmavathy Pandurengan ◽  
Srinivasan Arasan ◽  
Sugumar Gopalrajan ◽  
Jawahar Paulraj
Keyword(s):  
Acute Toxicity ◽  
Oreochromis Niloticus ◽  
Histopathological Changes ◽  
Liver Tissues

Toxic effects of sub lethal concentration of dioctyl phthalate on the histology of liver of Clarias batrachus (Linn.).

2016 ◽  
Vol 5 (09) ◽  
pp. 4874
Author(s):  
Manisha Satpathi* ◽  
Ravinder Singh
Keyword(s):  
Acute Toxicity ◽  
Light Microscopy ◽  
Dioctyl Phthalate ◽  
Clarias Batrachus ◽  
Fresh Water Fish ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Water Fish ◽  
Toxicity Effects ◽  
Plastic Products

Dioctyl phthalate (DOP) commonly used as plasticizer enters into aquatic environment from the industries manufacturing plastic products, PVC resins, cosmetics and many other commercial products. Therefore, this study was designed to evaluate the acute toxicity effects of Dioctyl phthalate on fresh water fish Clarias batrachus. The 96 hour LC50 of Dioctyl phthalate in Clarias batrachus was estimated as 14.5ml/L. Histopathological changes in liver of Clarias batrachus were determined by exposing them to a fraction of LC50(1/5th) dose with every change of water for 30 days.The liver of Clarias batrachus was excised at every interval of 30 days and histological changes of liver were studied under light microscopy. Liver tissues showed abnormalities. Centrilobular vacuolation, necrosis, eccentric nuclei and enlarged nuclei, Centrilobular degeneration of hepatocytes were observed in liver tissue of fish.

scholarly journals Acute Toxicity of Leaf Extracts of Enydra fluctuans Lour in Zebrafish (Danio rerio Hamilton)

Scientifica ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Jobi Xavier ◽  
Kshetrimayum Kripasana
Keyword(s):  
Acute Toxicity ◽  
Basal Membrane ◽  
Brain Parenchyma ◽  
Herbaceous Plant ◽  
Histopathological Changes ◽  
Oral Toxicity ◽  
Leaf Extracts ◽  
Toxicity Studies ◽  
The Brain ◽  
Oral Acute Toxicity

The present study was focused on the concentration-dependent changes in oral acute toxicity of leaf extracts of E. fluctuans in zebrafish. The study was also aimed at the details of histopathological changes in the gill, liver, brain, and intestine of zebrafish exposed to the leaf extracts of the plant E. fluctuans. Enydra fluctuans Lour is an edible semiaquatic herbaceous plant used widely for the alleviation of the different diseases. Since there were no toxicity studies conducted on this plant, the present study was an attempt to look into the elements of toxicity of the plants. Two types of experiments are conducted in the present study. First, the acute oral toxicity study was conducted as per the OECD guidelines 203. Second, histopathological changes were observed in the fishes exposed to the lethal concentrations of plant extract. The oral acute toxicity studies conducted on Zebrafish have revealed that the leave extracts of E. fluctuans were toxic to the tested fish at the concentration of 200 mg/kg body weight. The histopathological studies conducted on the intestine of treated fishes showed that treatment has induced rupturing of the villi structure and fusion of villi the membrane and detachment of the villi structure from the basal membrane of the intestine. The histology of the liver also showed severe vacuolization in the cells while it is not affected in control. The studies on gills showed the detachment of the basal epithelial membrane in the gills compared to control which might have led to death of the fish. The histopathological observations of brain tissues treated with test samples also revealed the marked impingement in the brain parenchyma while the control is normal without impingement of the brain.

Acute toxicity of nitrite on tilapia (Oreochromis niloticus) at different external chloride concentrations

2006 ◽  
Vol 32 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Wang Yanbo ◽  
Zhang Wenju ◽  
Li Weifen ◽  
Xu Zirong
Keyword(s):  
Acute Toxicity ◽  
Oreochromis Niloticus ◽  
Chloride Concentrations

scholarly journals Uji Toksisitas Akut Air Limbah Industri Sasirangan Terhadap Ikan Nila (Oreochromis Niloticus)

2019 ◽  
Vol 16 (1) ◽  
pp. 733
Author(s):  
Akhmad Yafi Kusuma ◽  
Rahmawati Rahmawati ◽  
Hardiono Hardiono
Keyword(s):  
Acute Toxicity ◽  
Water Body ◽  
Oreochromis Niloticus ◽  
Toxicity Test ◽  
Industrial Effluent ◽  
Probit Analysis ◽  
Control Group ◽  
Acute Toxicity Test ◽  
Control Group Design ◽  
Ammonia Content

Abstract: Toxicity Test Of Acute Industrial Waste Water On Tilapia Fish (Oreochromis Niloticus). The sasirangan industrial liquid wastes containing high ammonia and high pH when discharged into the receiving water body without treatment will result in changes in water quality and even the death of aquatic biota so that an acute toxicity test is necessary. This study aims to determine the value of LC50 from waste sasirangan against tilapiaI. This research used the experimental method of Post Control Only Control Group Design design. Samples taken as much as 100 liters of waste in one industry sasirangan existing in the city of Banjarmasin. Concentrations of the sasirangan waste solution to be used in the acute toxicity test are: 4, 8, 12, 16 and 20%. Parameters studied include ammonia, DO, pH, and temperature. To determine the value of LC50 using probit analysis. The results showed that LC50 for exposure time 24, 48, 72 and 96 hours were 14.73%, 10.21%, 8.26%, and 7.35%, respectively. The results of the analysis show that pH and ammonia content of industrial effluent sasirangan affect the death of tilapia fish. This research is hoped that the sasirangan industry does not dispose of its waste directly to the water body but needs to process it first. For further research it can complement the untested parameters such as BOD, COD, and TSS that affect fish survival.

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