From my understanding about stones (Jack had them), it wasn’t that high calcium diet options caused the stones. He just didn’t process calcium properly and so I watched his calcium content, not because high calcium caused the issue, but because due to HIS condition, he couldn’t process higher calcium food well, which could cause stones. So that means you really have to have a bunny with this issue in the first place to worry.
For a normal bunny, it has more to do with the richness of alfalfa nutrients, not the calcium, and that can cause other issues, HOWEVER, your bunny is still young. Only 3 months old, He is still growing and unless you see some adverse reaction– poop butt, gaining too much weight etc, at this point, I don’t see a reason to take him off Alfalfa right now.
If you want to start to get him used to other hays, like Timothy and/or Orchard, just start mixing it in for him. He may only nibble slightly on the new hay, but over time you can begin to add less alfalfa and more of the higher fiber hay.
According to the House Rabbit Society, they recommend introducing timothy and other grass hays (decreasing alfalfa) at around 7 months. Your bunny is still only three months right?
For your convenience, I have copied and pasted the excerpt from HRS, but you can see the full diet info at http://www.rabbit.org/faq/sections/…ies:
This is the copied and pasted info for growing bunnies.
What quantities of food should I feed young adults? (7 months to 1 year)
- introduce timothy hay, grass hay, and oat hays, decrease alfalfa
- decrease pellets to 1/2 cup per 6 lbs. body weight
- increase daily vegetables gradually
- fruit daily ration no more than 1 oz. to 2 oz. per 6 lbs. body weight (because of calories)