Ok, that's good to know. That's interesting that they all stopped eating it? I'll look into the McCauly's, but I ordered a tub of the EquiPride. 25 lbs for $60 shipped isn't bad, that should last over 6 months for one horse, so that comes out to $10 a month, not bad compared to a lot of supplements, IMO.
Three of the four never were too crazy about the taste, when fed by itself. I always had to mix in a half cup of equine rice bran, their Omega-3 Horseshine and some water. They got used to it eventually.
I don't know if EquiPride changed something in the formula that made it taste different at the end but, when it got to third horse not wanting it, I raised my eyebrows, when the fourth horse stopped eating it a week later, I decided I'd better find something they would eat - lollol
I should add that I kept the EquiPride in the spare bedroom, so it was not exposed to humidity and temperature swings. The date on the bag was 12 months out, so quality should not have been a factor either.
What makes if difficult is that one horse is oat & corn intolerant and very soy intolerant. Two other horses have metabolic issues, so can't have soy or grain either.
The no-soy or grains in the McCauley's M-10 was why I went with it. If they stop eating that, I will be S.O.L.