Abstract:This study was to assess the effects of deltamethrin on some haematological parameters of brown trout (Salmo trutta fario). During the 4 day, 10 brown trout were exposed to two different concentrations of Deltamethrin which they were 20% (0.91 μg·L-1) and 40% (1.88 μg·L-1) respectively, (LC50=4.7 μg·L-1). The results obtained from this study showed that the White Blood Cell (WBC), Hemoglobin content (Hb), Hematocrit percentage (PCV), Mean Corpuscular Volume (MCV) and Mean Corpuscular Hemoglobin (MCH) were decr… Show more
“…The LC 50 of triazophos for 96 h treatment period in different fish species are as follows: 0.008 mg/L for Peseudorasobora parva , 0.035 mg/L for Tilapia nilotica , 0.060 mg/L for Colossoma brachypomum [ 23 ] and1.05 mg/L for Cirrhinus mrigala [ 24 ]. The LC 50 value of deltamethrin for 96 h treatment period in different fish species have been reported as follows: 2.6 μg/L for Brycon amazonicus [ 25 ], 4.7 μg/L for Salmo trutta fario (Brown trout) [ 26 ] and 15.47 μg/L for O. niloticus [ 27 ].…”
“…The LC 50 of triazophos for 96 h treatment period in different fish species are as follows: 0.008 mg/L for Peseudorasobora parva , 0.035 mg/L for Tilapia nilotica , 0.060 mg/L for Colossoma brachypomum [ 23 ] and1.05 mg/L for Cirrhinus mrigala [ 24 ]. The LC 50 value of deltamethrin for 96 h treatment period in different fish species have been reported as follows: 2.6 μg/L for Brycon amazonicus [ 25 ], 4.7 μg/L for Salmo trutta fario (Brown trout) [ 26 ] and 15.47 μg/L for O. niloticus [ 27 ].…”
“…95% confidence limits were considered important. SPSS 15.0 software was used for data analysis (Karatas, 2015).…”
Section: Discussionmentioning
confidence: 99%
“…Aeration was allowed during the trial. The quality parameters of water were measured as O 2 = 8.5 ppm, pH = 7.4, SO 4 -2 = 0.30 mg/L, PO 4 -3 = trace, NO 3 -= 3.15 mg/L, NO 2 -= trace and conductivity = 230 ls/cm (Karatas et al, 2015).…”
The aim of this study was to determine the effects of diazinon on some haematology indices in rainbow trout. During the four day, 10 rainbow trout were exposed to two different concentration of diazinon, 40% (0.66mg/L) and 80% (1.32mg/L), respectively (LC50=1.65mg/L). The values of erythrocytes (RBC), packed cell volume (PCV) and hemoglobin (Hb) were significantly (P less than 0.05) decreased. Whereas, leukocytes (WBC) value increased significantly (P less than 0.05) and then decreased. The values of mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) were significantly (P less than 0.05) increased with diazinon administration. However, the increase in the mean corpuscular hemoglobin content (MCHC) was statistically insignificant (P>0.05). Lymphocyte decreased significantly (P less than 0.05). Neutrophils increased and then decreased significantly (P less than 0.05). In conclusion, the changes blood parameteres of the fish exposed to diazinon may be related to decreased immune system.
“…Lower haemoglobin level might decrease the ability of the fish to enhance its activity in order to meet occasional demands like seeking food and escape. Decrease in Hb has also been associated with the reduction of oxygen-carrying capacity in fish as reported by Karatas (2016). Decrease in erythrocyte counts could be due to haemo-dilution resulting from impaired osmoregulation across the gill epithelium.…”
Present study was carried out to investigate the alterations in the haematological profile of juvenile common carp (Cyprinus carpio var. communis) against acute toxicity of organophosphorous compounds, dimethoate and chlorpyrifos. The fish were divided into 5 different experimental groups for range finding tests on the basis of which the doses for definitive tests were selected. The acute bioassay toxicity tests were carried out in triplicates for 96 hours with a control group run parallel to the experiment. Data obtained was analyzed as per Finney’s probit to determine LC50 values. The mean lethal concentration was found 1.1ppm and 3.8ppb respectively for dimethoate and chlorpyrifos. The samples investigated for various haematological parameters such as haemoglobin concentration (Hb), Red blood cell (TEC) and White blood cell (TLC and DLC) counts the heamatocrit (Ht) level, the mean corpuscular volume (MCV) and the mean corpuscular haemoglobin (MCH). Packed cell volume (PCV) and Erythrocyte sedimentation rate (ESR) showed a negative impact of pesticide treated fishes when compared with control. Hb, TEC and Ht were found lower while as ESR and TLC were recorded higher than the control specimens. MCV and MCH showed statistically insignificant differences when compared with control. In DLC, monocyte lymphocyte, neutrophil and basophils were found increased while as eosinophil count was found unaffected than the normal. Studies suggested that the pesticides are potential toxicants for common carps among which chlorpyrifos was found to elicit profound changes intense than dimethoate.
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