We are in the process of buying a nice mare to be a family horse. (She will be alone - but not for long, I don't like the idea of keeping a herd animal as a solitary animal).
When I went to visit her today, I noticed that where the horses were kept, they were being fed a hay only diet (no grass).
Where I would have her, there are pastures abound, and they're all quite full of grass. I am under the impression that if she goes from hay straight to grass and over does it, she could get colicky. Any opinions? Am I wrong? What can I do to ensure she stays good and colic free?