What Would the World Look Like Without low starch hay replacer for horses?

https://hoveler-horse-feed-mzxu080.stonefielddigest.com/posts/worried-about-a-sensitive-stomach-9-ways-hoveler-pur.muskel-helps

Höveler's muesli fits the demands of the dressage barn: protein-rich at 20%, low starch at 5.8%, and easy on the stomach. One 44 lb bag at $52.99 covers months of supplementary feeding inside a complete ration.