The Probios powder contains 70% sucrose..bad for horses wiht insulin resistance. Does this product also contain sucrose?

I have been feeding Probios granules to an IR horse for years without problems-- the Probios paste-in-a-tube (not granules) contains sucrose (sugar) and the sucrose filled paste did cause problems with just a half tube. I contacted the mfg many years ago about the granules re: sugar just in case the label was misleading, they said this product is sugar free. Few vets seem to know that the granules are safe for IR horses.

I've been mixing the 'dispersible powder' form of this in with my layer feed for my hens. Do you think 'this' form (feed granules) would work better?

I use this for my laying hens as it is more economical to buy than the powder form. There aren't specific dosing instructions for chickens on the container, so I use the ones from the first container of powder that I purchased and the instructions on the container for horses, cows, and pigs are identical on both container, as are the ingredients. I haven't had any issues with the hens not eating it, and they are all very healthy.

About how many cups of granules are in the 5lb container?

Not positive the exact cups, around 10 I would say.. but the little scooper is very small and a 5lb container which I am feeding to 2 older horses lasts me several months.. and works GREAT...