Posted by PH Cody on November 20, 2002 at 07:44:46:
In Reply to: Equine linebreeding/inbreeding posted by lbspaints on November 15, 2002 at 09:00:23:
Ok, this is posted with permission from a friend named Bob Lapp. Great guy, always helpful :) He's also very much a genetic expert...
<<< More precisely, altho you'll find some variations of opinion, but not Inbreeding: the mating of two very closely related horses, such as father to Linebreeding: clearly the more popular and long-practiced matings; Hank Hope that helps :) PH Cody
seriously so:
daughter, son to dam, or brother to sister. I've seen some Appaloosa matings
with these exact pairings, but never heard much about the offspring.
Remember, it concentrates inherited characteristics...the good AND the bad.
Most breeders will not practice inbreeding and you'll probably get a
variation of opinion from equine vets.
Wiescamp and other long-time QH breeders as well as Mavis Peavy with both QHs
and Apps, practiced it extensively and with great results. Linebreeding is
less intensely concentrated, including half-siblings, grandparents or
cousins. Same intent as inbreeding, perpetuate certain desirable
characteristics, but less risky because it is not as close up in the family.
In short, linebreeding stays within a family of horses, while "outcrossing",
contrary to popular usuage, involves mating of horses in the same breed with
no common ancestors in roughly the first four generations.
Purpose of outcrossing is to introduce new characteristics into a
family....commonly called "hybrid vigor". Obviously however, outcrossing is
less predictable because one is going outside a family to another family and
don't really know what the results will be, even if you know what each
respective family has produced.
>>>>>
