What the Oxford English Dictionary Doesn't Tell You About feeds for competition horses

https://performance-horse-feed-rtro865.brightpathdigest.com/posts/hoveler-western-sport-5-protein-sources-behind-the-14-on-the-label-2

Foundations count in early training, so inactivated brewer's yeast and biotin at 1,185 µg come in the mix for young horses starting work. Vitamin E at 260 mg per kg rounds out the micronutrient picture, at $37.99 for 44 lb.