Selenium and Vitamin E in Dairy Cows - A Review
J A Willshire, J H Payne
24. March 2011
Selenium and vitamin E are essential for dairy cattle health. They both have major roles as anti-oxidants and are able to act synergistically. Their beneficial effects are widespread and can influence fertility, immune system function, growth and production. However, selenium has a low safety margin, and selenium toxicity occurs when the intake exceeds the excretory capacity. This paper reviews the requirements, uptake pathways, diagnostic tools and control methods available for selenium and vitamin E in dairy cows.