Preferential mating between non-relatives, see Inbreeding
Mating individuals from different populations.
Also outcrossing. The mating of unrelated individuals.
the crossing of genetically unrelated plants or animals
Mating between unrelated individuals.
A breeding program involving the mating of unrelated rabbits of the same breed.
The process of mating unrelated individuals in order to improve vigor or type.
Breeding in new blood of the same breed.
The mating of genetically unrelated individuals.
(originally we called this negative inbreeding, we will no longer use the term negative inbredding) The mating of individuals who are not closely related. Compare with inbreeding.