Hi i have a 31 year old anglo arab mare who has lost a bit of weight this winter,im feeding her quiet mix,sugarbeet,honeychop and barley rings twice a day,im dreading the day when the rugs come off she always looks a bit rough for the first couple of months!also my 6 year old tb chesnut mare is a bit ribby shes having the same feed as above.Any ideas how to fatten them up without hotting up? They also have ad-lib hay,and eat their barley straw bed!