My husband forgot to lock the gate and both horses were grazing on lush pasture for 10 hours (till my mom noticed it this early morning). We just started them on grass 15-20 mins/day last week, so they are definitely are not "adjusted" yet. I've heard there is a good possibility for the horse to get laminitis because of all the sugar they consumed, but I know very little about the subject (I will do googling after posting this). My questions are:
1) What is the chance of laminitis?
2) How long it may take for condition to develop and what should I look for?
3) Is it curable completely and how long does it take?
I told my parents (they took care of horses in the morning) to hold off the grain, and give them some hay (they are mostly on hay year around) only later today. Anything else I should of do?