Exersize wheels: I have been using exersize wheels for a while but I am starting to wonder.

I don't think they are hurting reproduction.... but also don't think they are helping.

I am about to increase my number of breeding groups to keep up with demand to 24 - 1.3 breeder enclosures total. While the wheels aren't too hard to keep up with, they are definately an expense, and something else to keep up with.

I have a group that should have reproduced over a month ago but still is not pregnant. I had not observed any mating. I removed their wheel 2 days ago and last night he was taking care of business big time. Did it have anything to do with the wheel??? who knows.

I am just curious to know if there is any researched info on this subject.... I am also looking for individual opinions.

How much benefit is there to providing wheels? Does it increase / decrease reproduction rate? Does it effect overall health good or bad?