Jessica -
I'm speaking as someone who just went through a horrible 2 year period of laminitis (resulting in coffin bone rotation - aka founder) caused by Insulin Resistance (IR) & Cushings disease. I cannot begin to tell you how much reading I've done, and am very active on the Yahoo Cushings/IR group - just to try to get a basic understanding of this!
You can try feeding different things to your horse, but unless you know for sure what's going on, the condition can worsen. Sounds like you were lucky. In my horses' case, oats would kill her.
Triple Crown Lo Carb - is around 15% NSC, which MAY be okay for some IR horses, but again, would be much too high my my horse. She'd be right back into laminitis if I fed that to her. You need to know what's going on with your horse.
Please. Ask your vet to come out, and draw blood to check her insulin levels. That will answer the question right there. In the mean time, here is the "Emergency Diet" that is recommended by Dr. Eleanor Kellon for IR horses:
- Grass hay or grass hay and soaked beet pulp with no molasses ONLY. Hay should be soaked for at least half an hour before feeding, an hour is better. Hot water preferable.
If you cannot find beet pulp without molasses, you can soak the beet pulp,
then rinse the beet pulp multiple times (hot water works best) until the water
draining off runs clear (not brown), and then feed.
- No grain or pelleted or senior feeds, etc. that contain grain products or
molasses
- No grass of any kind (even if it looks dead)
- No carrots or apples or sugar containing treats
- Stop any multi-ingredient supplements that you may currently be using, its
best to use ONLY the items recommended here until a full diet analysis is done
- Plain white salt 1 to 2 oz. a day (or iodized if not feeding an iodine
supplement, human iodized table salt added to the beet pulp is fine.)
- Cinnamon 1 teaspoon/250 lbs body weight (regular grocery store cinnamon). This is the total daily dose, e.g. 4 tsp/day for a 1000 lb horse, and should be divided between meals
- Chromium 2.5 mg/day/500 lbs body weight (ones for humans often easiest to
get, and may be only useful in low chromium areas like the midwest USA)
- Iodine 2.5 mg/day/500 lbs body weight (supplement or from salt as above)
- Magnesium 1.5 grams/day/500 lbs body weight (only as a short term
measure until hay analysis can confirm if it is actually needed or
not, and how much), can use human supplement, or get feed grade magnesium
oxide from a feed mill.
- Vitamin E 1000 IU/day/500 lbs body weight (again, human supp. may be easiest)
Bed on shavings rather than straw. This is very important. Straw may look to you like it's "empty" nutritionally, but can have three times higher sugar than a green hay does.
Stop using any supplements with ingredients that include glucosamine or
yucca. Avoid TMZ or SMZ antibiotics when other antibiotics can be used
Please note, this is only a TEMPORARY measure, not intended for long time use.
The odds of this diet being adequately mineral balanced are very low. The hay
only or hay and beet pulp part won't change but depending on the sugar level
in your hay you may not need to soak it and mineral needs may be vastly
different from the ball park figures above, including a need to supplement
some or all of the following: calcium, phosphorus, zinc, copper, manganese.
Copyright Eleanor M. Kellon, VMD 2003, all rights reserved