My new mare arrived sunday in an awful state literally skin and bone but with what we thought was a massive worm belly, worm count comes back realise it cant be a worm belly and find out shes in foal! Apart from her big belly she is in such poor condition you can see every bone in her body, shes never had hard feed or hay before lived out all her life with nothing. She currently gets hi fibres nuts and ad lib timothy hay until I figure out what I should be feeding her. She is looking slightly better already and he coat has become a lot shinier. any recommendations on what I should be feeding her?