Quote Originally Posted by Hyper Joe View Post
It would take a while before the inbreeding shows bad results.
This would be just one way to do it without getting new stock.
This should last for a few years or more.

1 - Breed founding father to founding mothers for about 8 months or so.
You get 8 generations of babies not bred back to the parents yet.

2 - On the 8th month breed the father to the newest daughters.
-Inbreed level 1- and it has already been 8 months!

3 - Keep a male from the 8th month and breed him to the daughters from step 2 or their daughters.
Or keep a male from the original fathers breeding to the 8th month daughters and breed back to them.
- inbreeding level 2 - then another eight months go by.....
Or keep a male from each female litter and breed to daughters from the other females litters.

Hehee.. I think I made this sound too complicated but.. the easiest way to keep your bloodline fresh just get a new male every 8 months and breed to the newest daughters.
the only problem with that is its not inbreeding. none of those mice would carry all the same genes. what i posted is what harlan teklan deems inbred