March 2021

Copper deficiency is a significant bovine health issue in Western Canada where soils and plants may have low copper levels and copper may be tied up by other minerals. Low copper levels can affect immune response, making cattle more susceptible to infectious diseases and less responsive to vaccines.

Copper deficiency can also cause reproductive failure and poor conception rates, particularly when cows are copper-deficient around breeding season. Assess your herd’s copper levels by taking blood samples from about 10 per cent of the animals.

To avoid copper toxicity which can be fatal, work with your veterinarian to ensure your cattle have suitable copper levels. For more information, click here to read WCVM veterinarian Dr. John Campbell’s column.