Effects of deltamethrin on some haematological parameters of brown trout (Salmo truttafario)

This study was to assess the effects of deltamethrin on some haematological parameters of brown trout (Salmo truttafario). During the 4 day, 10 brown trout were exposed to two different concentrations of Deltamethrin which they were 20% (0.91 μg· L-¹) and 40% (1.88 μg· L-¹) respectively, (LC₅₀=4.7 μg· L-¹). The results obtained from this study showed that the White Blood Cell (WBC), Hemoglobin content (Hb), Hematocrit percentage (PCV), Mean Corpuscular Volume (MCV) and Mean Corpuscular Hemoglobin (MCH) were decreased in two treated groups when compared to the control (p<0.05). However, the number of Red Blood Cell (RBC) increased in deltamethrin treated fish (p<0.05). Mean Corpuscular Hemoglobin Concentration (MCHC) values were insignificant when compared to control group (p>0.05).