Acute toxicity and haematological changes in common carp (Cyprinus carpio) caused by diazinon exposure

Zubair Ahmad

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The common carp (Cyprinus carpio) was exposed to diazinon to determine the lethal concentration (LC50) values at different times and effects of sub-lethal concentrations on haematological and biochemical parameters. The LC50 values at varying times were recorded as high as 18.57 mg/l (24 h), 14.87 mg/l (48 h), 12.29 mg/l (72 h) and 9.76 mg/l (96 h). Fishes exposed to sub-lethal concentrations (0.5, 1.0 and 2.0 mg/l) for four weeks revealed that the pesticide causes alterations in various blood parameters. Red blood cell (RBC) counts, haemoglobin concentration and haematocrit values increased whereas white blood cell (WBC) count decreased. Plasma glucose level, glutamate-oxaloacetate transminase (PGOT) and plasma glutamate pyruvate transminase (PGPT) activities increased in the fish exposed to diazinon. Protein level in plasma and glycogen in liver and muscles were found to decrease in treated fish with diazinon.

Original languageEnglish
Pages (from-to)13852-13859
Number of pages8
JournalAfrican Journal of Biotechnology
Volume10
Issue number63
DOIs
Publication statusPublished - 17 Oct 2011
Externally publishedYes

Keywords

  • Bioassay
  • Biochemical and haematological changes
  • Cyprinus carpio
  • Diazinon

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