Many Sibe owners feed their Sibes the BARF (Bones and Raw Food) diet. There are books and websites devoted to this topic.

If you are interested in learning more or feeding your Sibes the Bones and Raw Food (BARF) diet this is a great discussion list.
http://groups.yahoo.com/group/BARFingSibes/

This is an exhaustive site on the BARF diet with many links to other BARF sites.
http://www.barfers.com