If the pen is closely cropped, IE, my horses live on a track of closely cropped grass 24/7, but, I still put them on grass for an hour or so everyday.... Anyway, you may want to put your horses out now on the pasture for a few minutes, to keep them use to the grass... there is a site I belive it is Safergrass dot org that might give you some insites
Mowed grass is stressed grass, so is grass that has been eaten down. morning grass has less sugar in it then afternoon grass... the different types of grass also vary in the amounts of sugar they have in them. Good luck... -- PNH Levels 1 & 2 Clinics, Rochester MN http://www.sittinghorse.us The Soul of a Horse ~ has touched my soul, may it touch yours too! ~ thesoulofahorse.com ~
