|Hickory, broken chinchilla Rex, cleaning |
white doe, Sweetie, after breeding.
|Snap and Aster, New Zealands, after breeding.|
|Ixis, white Rex, and Princess, otter Rex, after breeding.|
|Diagram of one line-breeding system.|
Line-breeding is a specific type of inbreeding where you breed son to mother or daughter to father, take the offspring of that pairing and breed it back to the mother-grandmother or father-grandfather. It can be repeated for several generations. It can also involve crossing cousins, but not always. Basically, the difference between line-breeding and just inbreeding is that line-breeding is systematic, whereas inbreeding can be haphazard.