Affordable Access

Download Read

Alteration of haematolocial parameters of "zeol fish"- Clarias batrachus exposed to malathion

Authors
Publisher
Zoological Society of Bangladesh
Keywords
  • Zoology
  • Malathion
  • Haematology
  • Clarias Batrachus
  • Zeol Fish
  • Anemia And Leucopoenia

Abstract

Clarias batrachus, locally called zeol fish, reared in fresh water on protein diet were exposed to 5% (8.77 mg/l active ingredient) and 10% (17.74 mg/l active ingredient) concentrations of malathion at 24 h intervals, for three weeks in cement tanks containing 580 liters of water with a constant flow (1.5/1 min) of aerated dechlorinated tap water with no recirculation under natural light. Weekly two cc venous blood was drawn from each sample to determine the haematolocial parameters using EDTA (ethylenediamine tetraacetic acid) as an anticoagulant. The findings of this study showed that malathion in different concentrations have some diverse effects on the haematological parameters of Clarias batrachus. Exposer to 10% concentration of malathion was found to have a lethal effect on RBC, thrombocyte, neutrophil and Hb concentration which caused death of the fish with the sign of hypochromic microcytic anemia. Exposer to 5% concentration, on the other hand, showed leucopoenia due to decreased leucocyte counts. Haemoglobin (Hb) concentrations and values of mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), mean corpuscular volume (MCV) and differential count of WBC levels showed decreased values at 5% concentration of malathion. Significant decrease (P<0.05) in Hb and concentration and MCH were observed during the exposer to the pesticide malathion. No significant difference (P>0.05) was observed in the levels of RBC, MCHC, PCV, MCV and WBC. DOI: http://dx.doi.org/10.3329/bjz.v40i2.14311 Bangladesh J. Zool. 40(2): 183-188, 2012

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
Downloaded <100 times
0 Comments

More articles like this

Structural alterations in blood cell of Clarias ba...

on Zeitschrift für mikroskopisch... 1987

Alterations in enzymes in an Indian catfish, Clari...

on Bulletin of Environmental Cont... February 1995

Alterations in nitrogen metabolism in freshwater f...

on International journal of exper... February 2012

Study of Serum Cholinesterase levels in fish Clari...

on Journal of environmental scien... October 2004
More articles like this..