Effect of sublethal toxicity of some pesticides on growth parameters, haematological properties and total production of Nile tilapia (Oreochromis niloticus L.) and water quality of ponds

Sweilum, Mohamed A.

doi:10.1111/j.1365-2109.2006.01531.x

Cited by 78 publications

(47 citation statements)

References 12 publications

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“…In Channa punctatus the most important factors decreasing growth consist of disorder in feeding behaviors, decrease in feeding rate, dysfunction in metabolism process and waste of energy to overcome the stress caused by insecticide exposure (Tripathi et al 2003). The reduced growth is in agreement with the results of Sweilum (2006) who found that the growth of O. niloticus decreased due to the exposure to dimethoate (20, 10 and 5 mg/l) and malathion (2, 1 and 0.5 mg/l). Similarly, Mousa et al (2005) reported that Nile tilapia exposed to basegran herbicide at field concentration (0.004 mg/l = 1/ 100 LC 50 ) and at half of field concentration showed significant (P \ 0.05) reduction in growth with increasing the level of pesticide compared with the control fish.…”

Section: Discussionsupporting

confidence: 92%

Protective effect of dietary vitamin E against fungicide copperoxychloride stress on Nile tilapia, Oreochromis niloticus (L.), fingerlings

et al. 2014

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A 2 9 3 factorial experiment was designed to study the effect of sublethal toxicity of technical grade copperoxychloride, dietary vitamin E and their interactions on growth performance, some blood parameters, DNA fragmentation and histopathological lesions of Nile tilapia (Oreochromis niloticus). The 96 h LC 50 of copperoxychloride was found to be 129.21 mg/l. Four hundred and fifty fingerlings with an average initial body weight ranged from 1.92 to 2.04 ± 0.11 g were randomly distributed equally in six treatments (T1-T6) with each of triplicates. T4, T5 and T6 were exposed to sublethal concentration 0.25 LC 50 of copperoxychloride. Fish of T1, T2 and T3 fed diet supplemented with different levels of vitamin E (0, 1 and 2 g/kg diet), respectively. While fish of T4, T5 and T6 fed diet supplemented with different levels of vitamin E (0, 1 and 2 g/kg diet), respectively. At the end of the experiment (90 days) the results indicated that fish exposed to 0.25 LC 50 of copperoxychloride and fed diet with normal level of vitamin E, showed significantly lower values (P \ 0.01) of all growth and feed utilization parameters, white blood cells and immunoglobulin M, but they showed significantly increased (P \ 0.05) values of alanine aminotransferase, aspartate aminotransferase, hematocrit, hemoglobin, uric acid and creatinine. Fish fed with varied concentrations of vitamin E neutralized the toxic effect of copperoxychloride as well as vitamin E, significantly lowered the hematological and biochemical response and enhanced the growth parameters and feed utilization. The toxic effect of copperoxychloride exposure and vitamin E feeding on histopathological alterations of liver and gill of the same studied fish will be taken in concern. The results showed improvement in samples treated with vitamin E. This study suggests that vitamin E can be effectively used to decrease the toxic effect of copperoxychloride on O. niloticus and its amelioration through dietary vitamin E supplementation.

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Section: Discussionsupporting

confidence: 92%

Protective effect of dietary vitamin E against fungicide copperoxychloride stress on Nile tilapia, Oreochromis niloticus (L.), fingerlings

et al. 2014

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“…The main haematological response of rainbow trout to the acute effect of metribuzin-based product was a significantly (P < 0.01) lower erythrocyte count, haematocrit, lymphocyte count and significantly higher (P < 0.01) erythrocyte haemoglobin and neutrophile granulocyte count compared to the control group. The reduction in erythrocyte count, haematocrit value and higher erythrocyte haemoglobin of rainbow trout in the present study can be attributed to the following factors: (1) haemodilution of blood due to the damage of fish organs (Morgan et al, 1980;Sweilum, 2006), and (2) the haematological parameters Ht, RBC and Hb, whose changes can be interpreted as a compensatory response that improves the O 2 carrying capacity to maintain the gas transfer, also indicate a change in the waterblood barrier for gas exchange in gill lamellae (Jee et al, 2005). The haematological results indicated a decrease in nonspecific immunity.…”

Section: Discussionmentioning

confidence: 61%

Effects of metribuzin on rainbow trout (Oncorhynchus mykiss)

Velíšek¹,

Svobodová²,

Piačková³

et al. 2008

Vet. Med. - Czech

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AbstrAct:The aim of this study was to assess the effect of metribuzin on rainbow trout (Oncorhynchus mykiss). An experimental group of fish was exposed to Sencor 70 WG pesticide product (active substance 70% of metribuzin). The acute semistatical toxicity test lasting 96 h was performed on rainbow trout juveniles. The 96hLC50 value of Sencor 70 WG was 89.3 mg/l. An examination of the haematological and biochemical profile and histopathological tissue examinations were performed on one-to two-year-old rainbow trout after 96 h of exposure to Sencor WG 70 in a concentration of 89.3 mg/l. The experimental group showed significantly lower values (P < 0.01) of plasma total proteins, triacylglycerols, aspartate aminotransferase, ammonia, calcium, lactate, alkaline phosphatase, erythrocyte count, haematocrit and significantly higher (P < 0.01) values of erythrocyte haemoglobin compared to the control group. A significant decrease (P < 0.01) in both the relative and absolute lymphocyte count and a significant increase (P < 0.01) in both the relative and absolute count of neutrophile granulocytes were also recorded in the experimental group. The histopathological examination revealed mild proliferation of goblet cells of the respiratory epithelium of secondary gill lamellae and hyaline degeneration of epithelial cells of the renal tubules of the caudal kidney. This alteration of kidney resulted in hypoproteinaemia, followed by the formation of transudate in the body cavity. The metribuzin-based Sencor WG 70 pesticide product was classified among substances harmful to fish.

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“…Similar observation had been made by McCarthy and Fuiman (2008) in red drum Sciaenops ocellatus exposed to concentrations of 40 and 80 lg/L of atrazine or 1-10 lg/L of malathion. Weight reduction was also found in Australian catfish Tandanus tandanus exposed to 2 or 10 lg/L of chlorpyrifos (Huynh and Nugegoda 2012), in Nile tilapia Oreochromis niloticus exposed to 5-20 mg/L of dimethoate or 0.5, 1.0 and 2.0 mg/L of malathion (Sweilum 2006), in Barbus stigma exposed to a concentration of 3 lg/L of endosulfan (Manoharan and Subbiah 1982) and in spotted snakehead contaminated with diazinon (Cong et al 2009). A study of Hanson et al (2007) showed the adverse effects of lindane, pentachlorophenol and propoxur on the growth of Nile tilapia, African catfish and Bagrid catfish Chrysitchtys nigrodigitatus.…”

Section: Growth and Feed Efficiencymentioning

confidence: 90%

Exposure to agricultural pesticides impairs growth, feed utilization and energy budget in African Catfish Clarias gariepinus (Burchell, 1822) fingerlings

et al. 2014

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The African catfish Clarias gariepinus is a widespread species in the Beninese cotton basin. In this study, the impacts of exposure to agricultural pesticides endosulfan [Thionex 350 EC (emulsifiable concentrate)] and Tihan 175 O-TEQ (oil toxicity equivalent) on growth, feed utilization and energy budget of C. gariepinus were investigated. Fingerlings (1.58 ± 0.02 g) were exposed to borehole water (control), 0.23 ppb (environmental concentration), 440 ppb (Lethal Concentration 50 %/20, LC50/20) and 880 ppb (LC50/10) of Tihan; and to 11 ppb (LC50/20), 22 ppb (LC50/10) and 29.40 ppb (environmental concentration) of Thionex for 28 days. Fish biomass was assessed weekly and fish samples were taken from different aquaria to determine the specific growth rate (effect on growth), feed efficiency rate and protein efficiency ratio (impact on feed utilization), and the biochemical composition of fish (impact on the energy budget). The results showed that endosulfan environmental concentration induced 100 % of mortality in catfish fingerlings while mortality rate was comparable between control fish and Tihan-treated fish over the 28-day period (p [ 0.05). In contrast to survival, the two pesticide types tested induced a marked decrease in growth only during the first 2 weeks of exposure (p \ 0.05). The negative impact of endosulfan on growth was associated to a lower feed utilization and protein efficiency compared with control fish or those exposed to Tihan (p \ 0.05). The energy reserves were more rapidly exhausted in fish exposed to endosulfan to meet energy demand generated by this chemical stressor.

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Effect of sublethal toxicity of some pesticides on growth parameters, haematological properties and total production of Nile tilapia (Oreochromis niloticus L.) and water quality of ponds

Cited by 78 publications

References 12 publications

Protective effect of dietary vitamin E against fungicide copperoxychloride stress on Nile tilapia, Oreochromis niloticus (L.), fingerlings

Protective effect of dietary vitamin E against fungicide copperoxychloride stress on Nile tilapia, Oreochromis niloticus (L.), fingerlings

Effects of metribuzin on rainbow trout (Oncorhynchus mykiss)

Exposure to agricultural pesticides impairs growth, feed utilization and energy budget in African Catfish Clarias gariepinus (Burchell, 1822) fingerlings

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