The cresty neck is a good sign of insulin resistance or equine metabolic syndrome
Her ravenous appetite can possibly be driven not only by having been starved to near death but also by insulin issues. My 17 yr old with true IR needs his jaw wired shut because he can't stop eating; he wears a grazing muzzle every day. The 25 yr old with EMS is not at all like that; just depends on the chemistry of each horse.
I agree with what you're feeding her for now. It may have to change or e cut back if she's gaining too much weight.
Now that you're getting her back on track, more forage is better than more in the feed pan, except for the soaked tim/alfalfa cubes. She's 32 and needs the extra protein & amino acids the alfalfa provides her.
Also, can you afford to buy Succeed or EquiOtic?
They are both designed to support the entire digestive tract, including hind gut issues.
Point-being, at her age and all she's been thru, if she doesn't have ulcers thrown into the mix, it would be a miracle.
My 25 yo TWH has Equine Metabolic Syndrome, a/k/a peripheral cushings. He also has enlarged glands, along with melanomas in both ears
I've just changed his diet for the umpteenth time since 2007 because metabolic issues never let you keep a horse "status quo" in the feed department.
The diet change came after I almost lost him to a big colic in early March. Then he colicked again in early May. He colicked because he has hind-gut ulcers and yes that was verified by the vet using Succeed's stool sample kit to check for such things.
I can't tell how you well this horse has come around and how fantastic he is now doing.
He wasn't shedding his coat, the blood tests showed low thyroid, and I was scared to death he was in early stages of cushings because he'd never had such a dull coat and that didn't want to let go.
After the second colic the vet left me with five days of EquiOtic, which is by prescription only. The ER vet recommended Succeed as she was leaving my farm, so I then put him on Succeed and he continued to do fantastic.
Succeed is $90/month. I think EquiOtic is a bit cheaper and also better quality, so I got a month's supply of EquiOtic in powder form from my vet. The office gals didn't know how much to charge so just handed me the bag of good and said "we'll bill you".
This horse went from being way off and lethargic to having the silkiest and tighest coat of any horse in the barn. His 25 yr old precious self honestly has the look of a ten year old again. I keep waiting for the other shoe to drop while at the same time enjoying every moment of "re-birth" these microbial products have given him.
I hope there's some way you can afford even a month's supply of either product; if they're going to help your mare, you will see a marked difference in less than ten days.
SUCCEED Digestive Conditioning Program Equine Supplement Equiotic- Live Equine Sourced Microbial Probiotic- Bluegrass Equine
Once you get her digestive system back on track, Brewer's Yeast may help maintain her gut flora. At the vet's recommendation, I put my other three horses on Diamond V-YC at two
tablespoons, twice daily.
They don't do anything, we're all pretty much retired but, the youngest of my four is 17 and also has metabolic issues, so the vet felt that, as cheap as a bag of Diamond V-YC is ($19), it wouldn't hurt to feed it to all of them.
I hope this helps and good luck with this gal - thank you for giving her a great home