brookcove
Posted : 5/6/2008 9:03:58 PM
the majority of even the most carefully planned responsible breedings
is "just" a pet quality dog. Imagine the bell-curve of expectations
drops down significantly when said breedings are indiscriminate,
uninformed, and ultimately hapless. The TOP end of your results is the
"pet quality" that you aimed for, and the BOTTOM end is deformity,
aggression, behavioral problems, cancers, etc, etc.
Thank you. This is a genetic fact which is not stated enough. A friend who is a research geneticist likens it to a target. If most of the people in your breed are aiming for a high standard in the center, you will have a small number of dogs that will achieve that standard (gold dogs), a large number of really nice dogs that meet the standard but in a sort of average way (orange dogs), and then a small number that fall below the standard (green dogs), but are nice dogs still - healthy, temperamentally sound, and easily identified with the breed they represent.
Gold dogs have a large gene pool of orange dogs to cross out to, and keep the breed healthy and still capable of doing whatever function people need from that dog (family dogs, hunting, service, protection, even lap dogs). The result of those breedings will be more gold dogs, some orange dogs, and a few green dogs. Orange to orange matings can also produce gold dogs since the bloodlines are in there strongly, gold dogs can also be used to improve borderline dogs in the green circle, and while gold dogs would be rare from such breedings, they wouldn't be unthinkable.
However, what happens when the majority of people in the breed aim for the orange - or even the green? What happens is that the standards go down across the board. The golds practically disappear, what used to be orange now becomes rare golds, and what used to become green now becomes orange. So what you say?
Now there emerges something else to take the place of the greens. Something worse than the greens were before, a result of lowered standards - now there's a regular flow into the gene pool of unhealthy, substandard dogs that are unsuited for the purpose that that breed exists, in theory. The same breeding principles apply as above - only now as matings occur back and forth across the lines of the "target", they introduce problems upward rather than bringing quality down to the green circle.