pedigree of birds

[corneel]

hellow,
I search a pedigree of birds on the internet.
such as Stambomen database | DVIN Dobermann Vrienden In Nederland


If this isn't exist, would jou like it if I would make such pedigree? And would you register you?

Excuse me for my language.

Thanks,
Corneel

[corneel]

don't kwon anyone a pedegree of birds of a sort bird?
If it isn't exist I would maybe make it. Would you register you?
Thanks,
Corneel

[corneel]

Has anybody an opinion?

[Universal Whisperer]

As a longtime researcher of German Shepherd Dog bloodlines (and to a lesser extent Collie and Siamese cat bloodlines), I can say that pedigrees can be very useful tools. HOWEVER, they are only useful when there is some available information about the individual ancestors in a pedigree.

When there is enough information available on ancestors of the individual animal who the pedigree represents, pedigrees are sort of "road maps" for achieving your goals in breeding. Such information includes color genetics of an individual and its ancestors.

If you want to produce a certain color for example, and that color is recessive genetically, you know that you must breed that animal of that recessive color to either another animal of the same recessive or one that carries that recessive in order to produce progeny with the recessive color. You will never get that recessive color by breeding an animal of that color to an animal of the dominant color who doesn't carry the gene for the desired recessive.

If you have a surprise recessive color showing up in the progeny of animals whose status regarding that recessive is unknown, that tells you instantly that both parents had to both carry that recessive.

With good pedigree and bloodline information on the individuals one is considering pairing, here are many traits besides color that can be either selected for or against when planning breedings. Thus a pedigree becomes a valuable roadmap to help select breeding partners that bring you closer to your goals in either producing a certain trait or traits or avoiding certain undesirable traits.

Another sometimes very useful bit of knowledge one can get from pedigrees, is an awareness of potential for possible genetic problems.
For example Canto vd Wienerau was a hemophiliac German Shepherd Dog. His daughters were all carriers. Canto himself died at 4 years old. However, from the time he was about 2 years old (the age the SV permits a dog to begin to be used for breeding) until his death, Canto sired 100 litters. Hemophilia A in dogs is similar to Hemophilia A in humans, the sons of an affected male and a normal female will be normals. However, the DAUGHTERS of an affected male will all be carriers. Hemophilia A is a sex-linked trait, carried on the X chromosome. The only time you could get a hemophiliac female is when an affected male was bred to a carrier female and hopefully nobody would be insane enough to do that kind of breeding on purpose.

Female descendants of a hemophiliac can pass the hidden gene for hemophilia for infinite generations from mother to daughter. Thus, its possible even today to find hemophiliac GSD males (although rigorous screening to eliminate affected males and carrier females from the gene pool has reduced the incidence considerably).
When one picks up a pedigree on a male GSD who traces back to Canto DAUGHTERS, one knows the possibility of hemophilia exists unless there's valid data that a dog in the relevant chain of descendants between the Canto daughter and the current dog in question, was proven either a male free of hemophilia or a female who was confirmed to not be a carrier. (A carrier female can pass on either her normal X chromosome or her carrier X to her daughters).

For another example, achalasia (a form of megaesophagus that has no effective treatment or cure) is a common genetic defect seen in a number of species. It is common enough in some GSD bloodlines that it's virtually impossible to avoid bloodlines in which achalasia has been produced (plus the fact that its definitely impossible to know anything for sure since such things are quite frequently kept secret, especially when it involves politics of breed clubs and famous animals!). However, it IS possible, when a dog is known to carry the gene, to try to avoid knowingly breeding two carriers together. If you have a female who has produced an achalasia puppy, you wouldn't choose a mate for her who has also produced the problem and if you chose a mate for her whose parents or grandparents produced it, you will know to keep an eye out for the problem in your litter when they first start eating solids (which is when this particular problem usually reveals itself when affected pups regurgitate their food)

Temperament problems can sometimes be genetic in certain bloodlines of animals and in selective breeding, one can avoid using lines which certain temperament problems consistently are coming from (one must consider of course, in determining if a problem is possibly genetic, whether all the animals showing a temperament problem are from the same type of environment or not. A situation where there are a number of animals coming from the same bloodlines that show the same problems, with these animals coming from different environments, is one in which a hereditary factor for that temperament problem should be considered and where it makes good sense to steer clear of that line unless your own breeding animal is either strong in producing good temperaments or comes from ancestors who have an overall good record for producing good temperaments (again environment is always a factor to consider before heredity, whenever one hears of an animal who has temperament problems). Also numbers are a factor, the more individuals with problems from the same lines, raised in different environments including very good situations, that one finds out about from believable sources, the more likely it is that genetics are a contributory factor.

Sorry this is long but there's no way to briefly and also adequately present examples of the usefulness of pedigree information in breeding.