It seems to be a basic rul of nature, from what I've read, that you shouldn't inbreed any animal. I can't see that snakes would be an exception from this rule.
I've certainly seen it in mouse colonies! I allowed my earlier mouse colonies to inbreed, and the resultant incidents of cancerous growths was amazingly high.
I think I read somewhere that breeding first level siblings was acceptable (although with slight risk of deformity, etc.) but any further inbreeding had an unacceptably high risk of further genetic deteriation.
Then again I could be totally wrong..... :wink:
