Coffey, R.T. 1988. Catalase, Cu/Zn- superoxide dismutase, glutathione peroxidase: Their relationship to oxygen utilization in cellular physiology, clinical and subclinical disease, nutrition and trace element utilization in livestock. The Bovine Practitioner. 23 (Nov. 1988), 138–143. DOI:https://doi.org/10.21423/bovine-vol0no23p138-143.