In a nutshell, the problem is not the production of soft stool (the waste material that makes up the round, dry droppings) but that the
cecotropes, the nutrient - rich droppings produced by the cecum, are abnormally
liquid and can not be eaten.
When the contents of the cecum are retained for longer than normal periods of time the
cecotropes are eventually excreted in a more
liquid state and it is impossible for the rabbit to eat them.