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The aim of this study was to determine the zinc, iron, copper, calcium, phosphorus, and magnesium levels in blood serum and zinc and copper levels in hair of dogs with canine visceral leishmaniasis. The serum zinc and iron levels were found to be significantly lower in diseased dogs than those of healthy controls. Serum copper levels were significantly higher, whereas no significant differences were observed for calcium, phosphorus, and magnesium. There were no significant differences in the zinc and copper levels in hair. Our results show that the serum zinc, iron, and copper levels are altered in canine leishmaniasis.