I own an OTTB 7 yr old mare. She's a pretty hot horse when being ridden. Currently, she is getting one scoop of Omolene 200 twice a day. It's what she's always been fed before I even owned her.
I want to feed her half omolene and half simple grain for her meals. What should I give to her? I need something that can keep her weight on without changing her amount of feed she gets.