Fig. 2From: Effect of a single, oral administration of selenitetriglycerides, at two dose rates, on blood selenium status and haematological and biochemical parameters in Holstein-Friesian calvesThe activity of glutathione peroxidase in supplemented and un-supplemented calves (mean + sem). ns- P > 0.05, *- P < 0.05, **- P < 0.01: Representing the significance of change over time in glutathione peroxidase activity in each studied group (Friedmans ANOVA). Different letters (A, B) represent the significant difference (P < 0.05) in glutathione peroxidase activity between groups at each sampling dateBack to article page