Positive Impact of Using α-Fe2O3 Nanoparticles as Dietary Supplements on Some Haematological Parameters of an Economically Important Minor Carp Labeo bata (Hamilton, 1822)

A simple low-cost wet chemical method is employed to synthesize α-Fe2O3 nanoparticles (NPs) and different samples are synthesized by varying the calcination temperature. Microstructural characterizations confirm the excellent quality of synthesized α-Fe2O3 NPs having different sizes. The synthesized NPs are used as dietary supplements of an economically important minor carp Labeo bata (F. Hamilton, 1822) to investigate the effects on some haematological parameters (haemoglobin, red blood corpuscle, and haematocrit) of the fish. Significant improvements in haemoglobin (Hb), red blood corpuscle (RBC), and haematocrit (Hct), are observed owing to the treatment with α-Fe2O3 NPs. Increasing Hb, RBC, and Hct can be associated with the increased absorption of iron in its nano form into the fish body via dietary supplements. Our data further demonstrate that the hematological effect of L. bata becomes more favourable as the concentration of NPs rises and or the size of the NPs falls, up to a certain level.