Experimental Studies on the effects of chlorpyrifos on Rats III. Haematological Findings


  • Ibrahim S. H. El-durssi Zoology Department / College of science / Omar El-Mukhtar University, P.O. Box. 919.
  • Ifdial O.S. El-Awami College of agriculture / Omar El-Mukhtar University, P.O. Box. 919.
  • Ghyath S. Mahmoud College of veterinary medicine, Omar El-Mukhtar University, P.O. Box. 919
  • Fahim A. Benkhaial Food technology department /college of agriculture / Omar El-Mukhtar University, P.O. Box. 919.




This Study performed to investigate the effects of Chlorpyrifos (one of the most used insecticides) on blood pictures of rats.

Thus a total of 110 male rats were used and experiment ally divided into four groups: the first group was used as control group .While the second group of rats received an oral daily doses of 1/10 LD50. The third and fourth groups of rats were administered single oral dose of 1/10 LD50 and 1/30 LD50 respectively .The median lethal dose was determined which appeared to be equal to 81.2 mg/ kg. B. W.

Haematological investigations revealed an increase in white blood cell’s count (WBC), red blood cell’s count (RBC), and mean carpuscular volume (MCV). On the other hand there is a decrase in haemoglobin estimation (Hb), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC)and the total blood platelets count (PLT).


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How to Cite

El-durssi, I. S. H., El-Awami, I. O. ., Mahmoud, G. S., & Benkhaial, F. A. . (2007). Experimental Studies on the effects of chlorpyrifos on Rats III. Haematological Findings. Al-Mukhtar Journal of Sciences, 14(1), 147–156. https://doi.org/10.54172/mjsc.v14i1.885



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