Okay. First of all, how much hay do you give her? How often is she out on grass? Is there any reason for her to be stressed out? Stress can lead to weight loss. As the horse is not older, I can't proscribe to you what I gave my senior horse after going to endless horse feed clinics and asking a million different horsepeople. I finally found the right supplement, and it works great, so you'll have to find something that works consistantly for your arab. I suggest going to clinics, asking your vet, checking around with other friends with experience with horses, etc.
Here's what I use for my horses:
***Lulu (overweight, mare, pregnant, miniature, hard to keep weight off): 1 tablespoon of Grow 'n Win from Buckeye, twice a day, along with a flake of hay, twice a day
***Steel Soldier (stallion, small pony, high excercise level): 2 cups of Grow 'n Win from Buckeye, twice a day, along with a flake of hay, twice a day
***Sundance (huge paint Clydesdale, came to us fat, gets little to no excercise): 2 cups of Grow 'n Win from Buckeye, twice a day, along with 2 flakes of hay, twice a day
***Arthur (senior, ridden often, high excercise level from herding around mare, had trouble keeping weight on earlier this year): 2 feed scoops of food, comprised of 2 cups of oats and the rest Nutrena Senior feed. Nutrena produces feed that horses will not colic from if they eat large amounts. Also, he gets a vitamin from Source. We've tried the Weight Builder version of it, and the Senior, and for him the Senior works best. 2 flakes of hay twice a day.
It all varies. Like I said, look around. Grass and hay make up a HUGE part of the horses' fat. Mine are in the grass pastures whenever possible. Try products with crimped oats, Omega 3 Fatty Acids, etc.
Last edited by equiniphile; 10-27-2009 at 02:49 PM.