TOXICITY EVALUATION AND HAEMATOLOGICAL STUDIES OF FLUBENDIAMIDE ON FRESHWATER FISH LABEO ROHITA
Nirmala Kallagadda*, Anil Kumar K., Lalitha V. and Venkata Rathnamma V.
The acute toxicity flubendiamide (Insecticide) behavioural studies and haematological studies of labeo rohita exposed to flubendiamide (Insecticide) was observed for 24 hrs, 48 hrs,72 hrs and 96 hrs. The freshwater fish labeo rohita were exposed to different concentrations of flubendiamide. The LC50 values for 24hrs (17mg/lit), 48hrs (15 mg/lit), 72hrs (13mg/lit) and 96hrs (11mg/lit). The fish shows marked changes were observed in behavioural morphology and the Behavioural changes Viz: increased respiration rate, perpendicular swimming pattern were observed. Among morphological changes on the body, heavy mucous secretion, frequency of occurrence such changes were more pronounced in the beginnings of treatment and decreased. The response of fish to flubendiamide toxicant was both time and dose dependent. Haematological study revealed that haemoglobin (Hb) was decline Mean corpuscular volume (MCV), Mean corpuscular haemoglobin (MCH) and Mean corpuscular haemoglobin concentration (MCHC) showed fluctuating pattern. The observed alterations were ultimately become the causative for affecting the general health status of the fish.
Keywords: flubendiamide, labeo rohita, Toxicity evaluation, Behavioural and haematological changes.
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