Haemato-immunological studies in ZnO and TiO 2 nanoparticles exposed euryhaline fish, Oreochromis mossambicus

The present study was aimed to analyze the effect of ZnO and TiO nanoparticles (NPs) on Haemato-immunological parameters in adult Tilapia, Oreochromis mossambicus. The nanoparticles size found as 47 nm and 30 nm for ZnO and TiO respectively. The acute toxicity (96 h) of ZnO (LC50: 100-110 ppm) and TiO (LC50: 80-90 ppm) NPs were identified by using probit analysis. RBC, Hb and HCT levels decreased in nanoparticles exposed groups resulted in decreased oxygen carrying capacity of RBC and other erythrocyte indices (MCH, MCV, MCHC). Increased WBC, neutrophils & monocytes and decreased lymphocyte levels were observed as increased concentration of the nanoparticles. The results were found as statistically significant (p