By Emma Reints, ISU animal science research graduate assistant, Iowa Beef Center
Vitamin A is critical in reproduction, growth and health in cattle. Though green grass is rich in the precursor to vitamin A, beta carotene, deficiency in vitamin A may be of concern due to recent years of drought. National recommendations for vitamin A supplementation assume cows have been eating lots of green grass for a significant portion of the year, building stores for critical processes such as vision, helping cows stay healthy while pregnant, and general cattle health. It is essential to monitor for…