grain-free hay alternatives: 10 Things I Wish I'd Known Earlier

https://horse-feed-advice223.evergrovio.com/posts/hoveler-western-sport-vs-a-grain-heavy-mix-7-ways-the-bag-reads-differently

Feeding a hard keeper starts with the stated rates: 0.88 lb per 220 lb of body weight for medium work, then adjusted to condition and training intensity as the guide advises