EFFECrf OF SOME INSECTICIICDES ON FRESH WATER FISH
Eman Saudi Abd El-Hamid Moustafa;
Abstract
The present study aimed to clarify some toxicological effects of the two tested insecticides : lambd-cyhalothrin (a pyrethroid compound) and trichlorfon (an organophosphorus compound) in catfish ( Clarias lazera) .
Two hundreds and twenty five Nile catfish were obtained from Zagazig City fish market . The weight of the fish was between 120 ± 3 g/individual . The fish were divided into 5 equal groups : the 1st group was considered as control one ; the fish in the 2nd and 3rd group were exposed to lambda-
. cyhalothrin at 1/20 & 1/40 LC50 , respectively and the fish in
the 4th and 5th group were exposed to trichlorfon at 1/10 &
1/20 LC50, respectively. The experiment was continued for 8 weeks (4 weeks exposure and 4 weeks clearance).
Samples .of blood, gills, liver, spleen, kidneys and muscles
C were collected from all previous groups after 3rd day, 1st, 2nd
,3rd and 4th. week of exposure period , then after 1st, 2nd, 3rd and 4th week of clearance period . Serum was obtained by centrifugation of blood , and stored at -20°C till biochemical analysis for glucose level, total proteins and its fractions, transaminases (AST & ALT), urea, creatinine and some electrolytes (calcium, phosphorus, sodium and potassium).
Two hundreds and twenty five Nile catfish were obtained from Zagazig City fish market . The weight of the fish was between 120 ± 3 g/individual . The fish were divided into 5 equal groups : the 1st group was considered as control one ; the fish in the 2nd and 3rd group were exposed to lambda-
. cyhalothrin at 1/20 & 1/40 LC50 , respectively and the fish in
the 4th and 5th group were exposed to trichlorfon at 1/10 &
1/20 LC50, respectively. The experiment was continued for 8 weeks (4 weeks exposure and 4 weeks clearance).
Samples .of blood, gills, liver, spleen, kidneys and muscles
C were collected from all previous groups after 3rd day, 1st, 2nd
,3rd and 4th. week of exposure period , then after 1st, 2nd, 3rd and 4th week of clearance period . Serum was obtained by centrifugation of blood , and stored at -20°C till biochemical analysis for glucose level, total proteins and its fractions, transaminases (AST & ALT), urea, creatinine and some electrolytes (calcium, phosphorus, sodium and potassium).
Other data
| Title | EFFECrf OF SOME INSECTICIICDES ON FRESH WATER FISH | Other Titles | تأثير بعض المبيدات الحشرية على اسماك المياه العذبة | Authors | Eman Saudi Abd El-Hamid Moustafa | Issue Date | 1999 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| B15006.pdf | 1.07 MB | Adobe PDF | View/Open |
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