Breeding between closely related individuals.

A mating system that allows maintaining a high relationship to outstanding ancestors while keeping inbreeding as low as possible.

Breeding within a line that is not as closely related as inbreeding

The mating of horses having a common ancestor some generations removed, to accentuate particular traits or characteristics.

The name given to a certain form of inbreeding where fowls are bred together to keep fowl relatively pure.

The process whereby relatives are bred to one another in a breeding process.