It s important to choose feeds that are fortified with prebiotics and comply with FEDIAF rabbit nutrition guidelines.
Rabbits being fed high protein diets and alfalfa pellets/hay are most susceptible to higher levels of nitrogen excretion.

Added prebiotics and probiotics keep rabbits on feed and support digestive health. ... Our Rabbit Blog offers expert insights, tips, and advice on ...
As we can see from the illustration, Rabbit Hay With Added Prebiotics And Probiotics has many fascinating aspects to explore.