Old Manor Alfa Haylage is made from pure Alfalfa (Lucerne).
It is higher in protein than Ryegrass haylage but it is typically low in starch and sugars. Lucerne has been shown to be effective in reducing the severity of ulcers in horses by providing superior buffering capacity compared to grass forages.
You can find the full analysis here.
Each bale weighs 20kg and there are 40 bales on a pallet.