Effects of Monocrotophos 36%EC on Haematological Indices in the Fresh Water Fish Labeo Rohita (Hamilton)

In toxic effects of Monocrotophos36%EC, at different time intervals (24, 48, 72 & 96 hours) in the haematological indices like Haemoglobin content (Hb), Total Red Blood Corpuscle Count (RBC), Total White Blood Corpuscle (WBC) count and Mean Corpuscle Hemoglobin (MHC) content in the blood of fish Labeorohita, was exposed to sub lethal concentration (0.40 ppm). The total amount of haemoglobin content (8.2, 8.1, 7.9, 7.7 mg.), and red blood corpuscles (2.84, 2.70, 2.60, 2.50 million) were gradually reduced. Meanwhile, White Blood Corpuscles (9780, 9820, 9980, 10110) count were increased. Mean Corpuscle Hemoglobin (MCH) count (28.87, 29.12, 30.82, 30.38 mg.) was gradually increased by hours to hours. In the present investigation it clearly indicates that very adverse effect of Monocrotophos 36% EC on fish.

Keywords: Monocrotophos 36%EC, Hematological indices – Hb – RBC – WBC - MCH.