1) Is a powder probiotic just as good as a paste probiotic?
2) How many CFU (colony forming units) is necessary in a powder form to actually be effective?
I have a horse that must be on stall rest for 1 to 3 weeks from an injury, and he's used to being in a free-range pasture 24/7. So I am currently "borrowing" powder probiotic from the couple I board with to keep his insides moving normally as much as possible (along with feeding him hay 3 times a day so it is spread out). But I am looking to buy my own probiotic for him during his stall stay.