Matings involving parents and siblings.
of inbreeding Brother/Sister (closest most dangerous) Father/Daughter (useful for testing foundation and F1 genetic soundness
or setting specific traits) Mother/Son (useful for testing foundation and F1 genetic soundness or setting specific traits)
Half-Brother/Half-Sister (most useful and considered line-breeding depending on the non-shared parents)
Matings involving relatives other than parents and
siblings. Cousins (have one or two Grandparents in common) Nephew/Aunt (most rationale line breeding) Niece/Uncle (most rationale
line breeding) G. Granddaughter/G. Grandson Grandchild/Grandparent
NOTE: shared relatives past the 4th generation
has little effect except in rare instances
Breeding an outcrossed animal back into one of its
This assumes the outcrossed animal was derived from two specific germ-lines
The breeding of unrelated animals. Only considered
outcrossing if both are inbred or linebred and from separate lines.
Do not share
any common ancestors in the first 4 generations.
(Matings involve unrelated animals.)