Thanks all for the tips. My set up doesn’t allow me to give her hay on her own so she is sharing two round bales in nets with three other horses. She is extremely passive but over the last couple of months I notice that she is spending more time at the bales and she seems to be more relaxed in general so that’s good. She is very well blanketed.
Jealousshe, I will look into the feeds you’re suggesting and I’ll also read up about boiled barley. Thanks again everyone!