G. SAMBASIVA RAO, G. SUNDARA RAO, T. SAMBASIVA RAO AND N. GOPALA RAO
Abstract
Alterations in the blood components of the freshwater fish Labeo rohita are studied after exposingthem to both technical grade and10% EC of bifenthrin a synthetic pyrethroid as toxicant for 10 days in 1/10th of LC50 values 96 hrs LC50 values as sublethal and lethal of 4 days. The parameters that are studiedinclude erythrocytes (RBC), Leucocytes (WBC), Haemoglobin (Hb) Haemotocrit (Ht), Mean CorpscularVolume (MCV), Mean Corpuscular Haemoglobin (MCH) and Mean CorpscularHaemoglobin Concentration(MCHC). The first four are determined and the last three are calculated values. Except WBC, all others aredecreased as quantitative alterations and will be the impediments for the normal functioning of allphysiological processes and are the one of the biomarker study of the toxicity and will be the indices oftoxicity and pollution load. They are the one of the reasons for causing the death of the fish. The resultsare going to be discussed with earlier studies and objective is to not to allow the pollution of such causedby pesticides and in the agriculture practices and such contaminated waters should not be used as it is goingto be detrimental for the impairment of growth for the fish which are cultured.