tying up

[guest@endurance.net]

katie parkin katiejack@earthlink.net or katie.parkin@unistudios.com
I have a healthy 14 year old arabian grey who has never tied up until
today.  He is riden four times a week and never has had a problem.  He is
allergic to alfalfa and so his diet consist of:

Oat hay twice a day 6 to 7 pounds per meal
1/2 coffee can (1/2 pound) of oat pellets
1/2 coffee can (1/2 pound) of stock builder for his protein
3 scoops of forco
salt licks are available
water is always accessible

Does anyone have any suggestions as to what I can do as far as future
occurrences.