For
example, several studies showed that the vitamin E and Se
status of cows could affect oxidative stress and have a
tremendous impact on the functional capabilities of bovine
neutrophils. Supplementing dairy cows with adequate
levels of both vitamin E and Se was shown to increase the
phagocytosis, bacterial killing, and oxidative metabolism
of peripheral blood and mammary gland neutrophils when
compared to cows that were otherwise deficient in this
micronutrient