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Dey, C., Saha, S.K.. (1393). A Comparative Study on The Acute Toxicity Bioassay of Dimethoate and Lambda-cyhalothrin and Effects on Thyroid Hormones of Freshwater Teleost Fish Labeo rohita (Hamilton). , 8(4), 1085-1092. doi: 10.22059/ijer.2014.802
C. Dey; S.K. Saha. "A Comparative Study on The Acute Toxicity Bioassay of Dimethoate and Lambda-cyhalothrin and Effects on Thyroid Hormones of Freshwater Teleost Fish Labeo rohita (Hamilton)". , 8, 4, 1393, 1085-1092. doi: 10.22059/ijer.2014.802
Dey, C., Saha, S.K.. (1393). 'A Comparative Study on The Acute Toxicity Bioassay of Dimethoate and Lambda-cyhalothrin and Effects on Thyroid Hormones of Freshwater Teleost Fish Labeo rohita (Hamilton)', , 8(4), pp. 1085-1092. doi: 10.22059/ijer.2014.802
Dey, C., Saha, S.K.. A Comparative Study on The Acute Toxicity Bioassay of Dimethoate and Lambda-cyhalothrin and Effects on Thyroid Hormones of Freshwater Teleost Fish Labeo rohita (Hamilton). , 1393; 8(4): 1085-1092. doi: 10.22059/ijer.2014.802

A Comparative Study on The Acute Toxicity Bioassay of Dimethoate and Lambda-cyhalothrin and Effects on Thyroid Hormones of Freshwater Teleost Fish Labeo rohita (Hamilton)

International Journal of Environmental Research
مقاله 24، دوره 8، شماره 4، دی 2014، صفحه 1085-1092    اصل مقاله (162.19 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/ijer.2014.802
نویسندگان
C. Dey؛ S.K. Saha*
West Bengal State University, Department of Zoology, Berunanpukuria, PO Malikapur, Kolkata- 700126, India
چکیده
Dimethoate (organophosphate insecticide) and Lambda-cyhalothrin (synthetic pyrithroid) are
two frequently used pesticides due to their high effectiveness and rapid breakdown into environmentally safe
products. The aim of this present study was to assess and compare the acute toxicity of Dimethoate
(Rogor30%EC) and Lambda-cyhalothrin (5%EC) on Labeo rohita (Hamilton). Acute toxicity bioassay was
carried out in a static renewal system to assess the toxicity. The fishes were exposed to different concentration
of dimethoate and Lambda-cyhalothrin to determine the LC50 values for 96hrs. The mortality data obtained
were analyzed by SPSS 16.0 based on Finney’s Probit Analysis Statistical method. The 96h LC50 values for
Dimethoate and Lambda-cyhalothrin were found to be 24.55 μl/L and 0.7 μl/L respectively. Effects of these
two insecticides on serum T3, T4 and TSH were investigated under sub-lethal toxicities which cause decrease in
the serum T3, T4 and increase in TSH level. It shows significant difference from control fish (p < 0.05)..
کلیدواژه‌ها
Dimethoate؛ lambda-cyhalothrin؛ Labeo rohita؛ LC50 value؛ Thyroid hormone
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