OK so if you fix all of this and let's face it you are not going to fix "all" of it, but if you fix the majority and they still seem to have the likelihood of an ulcer or gas or whatever then do you keep them on an ulcer preventive?  Can you give an ulcer preventive say every other day?  My two ae retired, one is 30 years old the other is 23 years old, out in the pasture 24/7 although pasture not plentiful this time of year but they would rather search or nibble on the grass that is maybe there than eat hay.  I have hay out for them 24/7 outside and inside they are not stalled only for their morning and night feedings which they get Renew Gold and soaked alfalfa cubes. My assumption is because they have arthritis pain and have DSLD or so I have been told.  Not sure on that one but I have been treating for it.  They also lost their pasture gal in April from colic and I still think they look for her.  They have been together all their lives.

In general, what you are discribing would be a very good basic diet that should not be ulcer generating. So, what is missing. I would sure look to the mouth and address any issues with teeth. This may be a challenge with the 30 year old. The higher calcium found in alfalfa is one of the reasons that I like that in the diet. A little more  alfalfa cubes may help if the teeth are too far gone for effective chewing of long hay. They can chew on the cubes if there are still teeth to break them up and more saliva will be produced. The every day use of omeprazol is both expensive and limited in it's benefits. I would rather not go that way. That is one of the reasons that I brought up the Gastro Buf. The active ingredient is the same that Purina is using in it's Outlast line, only at a much higher inclusion. That is not harsh on the system like long term omeprazol is, plus there is a positive effect on hind gut acidosis. 

Thanks Win, but I have not ever used omeprazol.  Only recently started using THE GI Ulcer Support.  

THE supplements are very well made. But, even when we were hauling cutting horses almost every day, we did not have to treat ulcers so I have not used their products. My ulcer experience has been redoing diets of customers horses to break the ulcer cycle. Breaking the cycle is the bottom line. Keeping a mat of material and saliva in the stomach will stop new ulcers from developing by containing the constant production of acid. Constant access to roughage is the foundation for both fiber and saliva in the stomach.  High grain and empty stomachs are the two biggest factors in gastric ulcer developement. As for hind gut ulcers, that is primarily the result of acidosis, and grain based feeds are the biggest cause of that.

I just looked up Gastrobuf. Very interesting. Certainly not cheap but if it works it’s worth it. I might have to order a tub...

NeutraBac pH is an all natural oral supplement that if given properly works wonders on ulcers and colic among many other issues. It is a fairly cheap and effective method as well. A half gallon of NeutraBac is $250 and a gallon is $485. They have a pretty cool applicator to give it to your horses in as well. Here is their website: http://www.runninblivestock.com/neutrabac-ph/

or you can search for them on Facebook under equiboss performance. 

PM me if you want something that really works without breaking the bank!!!

I've used Doug's product and it worked for my mare!