Effect of dietary nano zinc oxide supplementation on haematological parameters, serum biochemical parameters and hepato-renal bio-markers in crossbred calves

To investigate the changes in the haematological, serum biochemical parameters and hepato-renal biomarkers upon dietary supplementation of nano zinc oxide (nZnO) and its effect on growth performance in calves, 24 weaned (6 months age) crossbred calves were randomly distributed to four dietary plans (Control, Treatment1, Treatment2 and Treatment3). The Control(C) group was fed exclusively with basal diet; T1 was supplemented with 25ppm ZnSo4, T2 and T3 with 5ppm and 10ppm nZnO respectively, along with the basal diet. Zinc content in basal was 26.24ppm.