Horse Feed

I am having a problem finding out the exact name of this feed. My boyfriend's mom Michele has been feeding it to horse and he looks great and it is saving her money.

Manna Pro?

http://www.mannapro.com/

Sorry that is my fault. I have the website and everything. She said something about it just saying sweet pellet. That was all she could really tell me. I have looked all te website cannot find the same bag, google shopping and pictures. I am at a lose.