A little OT, but I had used Blue Seal for my Alpacas, goats, and chickens for years.
The alpaca and goat feeds were the best (for them) I had ever found and the chicken (for them) was the second best feed I ever used.
Unfortunately the feed dealers in my area discontinued carrying Blue Seal feeds.

Given the chance I would switch back in a heart beat and if they make a Ration Balancer I would use it for my horse too.