Fig. 3From: The effects of melatonin treatment on oxidative stress induced by ovariohysterectomy in dogsThe schematic design of the study. Blood sampling on days -1, 1, 3, and 5 was performed before oral melatonin administration (0.3 mg/kg) on days -1, 0, 1, 3, and 5 of the study. Ovariohysterectomy (OHE) and anesthesia were performed on day 0Back to article page