**PLEASE NOTE: I'm not recommending anyone free feed (or almost free feed) Protexin profibre pellets because that's not how the company say to feed it.**
That all said, I have done this, and someone else has done this too, with very vulnerable, sickly bunnies. I'm six months further down the line than the other person with doing this and what I've seen and continue to see is amazing.
Two rabbits who were unable to put on any weight despite eating for England. Both failing to thrive. At about 9 months old I started feeding the pellets and gradually increased and increased (I was looking at the results of less excess caecotrophs to start with), and they started growing and thriving and went, respectively, from 1.2kg and 1.3kg to 1.7kg and 1.8kg (but at the time I started giving it to them, they should have already been fully grown).
Both are in peak condition now and doing excellently. Neither are overweight but are still having profibre pellets daily, but in lesser amounts. My vet is positively amazed by their transformation.
Is there any particular reason why profibre pellets would enhance absorption of foods to such a great degree? These were frail bunnies and flawed bunnies but now strong thriving bunnies, a world away from where they were.
Any thoughts on this, at all?