[QUOTE=piedmontfields;8165637]
Not an expert here, but I also have a PSSM (diagnosed by bloodwork and exam during an episode) horse. With a grain-free diet and 5-6 day a week work, she is fit and capable of real work including a lot of canter. She is schooling 2nd and 3rd level dressage.
Given my experience, your description of running out of gas after 30 minutes of easy work makes me wonder if something else might be going on. Is your horse heavy? Or a heavier breed/type? Were they ever able to get fit more easily? My mare takes quite a bit of feed to stay at body condition of 5, so she is not the easy keeper type.
FYI, I have used DMG before, but do not use it currently. I do use give her Acetyl-l carnitine now, though. It’s pretty cheap if you haven’t tried this yet (source Fox Den Equine).
Good luck![/QUOTE]
He’s a grade horse, most likely with a good dose of QH, maybe some TB in there. The vet has him listed as Appendix for lack of any better knowledge.
He’s heavy built but not overweight. Very typical QH muscling. I’ve had more than one person ask me what his blood lines are.
He’s a very easy keeper. Wears a muzzle, gets only a small amount of low NSC feed to carry the oil, and ~ a pound of ration balancer a day for the vitamins. He also gets about 10-12 lbs. of hay/day in addition to what grass he can get through the muzzle.
He’s always been hard to get fit, this isn’t anything new.
I tried ALCAR once and he seemed to do worse on it. I don’t know if it was the ALCAR but it didn’t help so I stopped.
I know there is no magic bullet and it’s hard work getting any horse fit. My hope is that the DMG may help with muscle fatigue so that he doesn’t hit the wall quite so soon.
I talked to the BO and he’s going to do “pony camp” for 5 weeks this summer. The vast majority of the work will be walk and trot primarily in the mornings. All of it will be under supervision. He’s a nice, amenable guy and he’ll eat up the attention. I’ll ride in the evenings as usual. If I notice improvement in his fitness level I’ll look into finding him some additional rides after camp is over.