The decline of the German Shepherd character - Page 63

Pedigree Database

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by Blitzen on 20 January 2015 - 14:01

IMO unless a dog in the 10th generation appears more than one time in a specific pedigree, that dog itself contributes <.05%of its genes to the current gene pool. If specific traits that are  typical of that dog are selected for in subsequent generations then there maybe be some characteristics of that dog in the 10th that will appear in the current generation that can be traced back to him. However, there still must be an unbroken chain of those traits passed genetically from generation to generation through both the maternal and the paternal side of any pedigree. All dogs inherit one half of their genome from their sire, one half from their dam and the more outcrossing that a pedigree contains, the less likely it will be that any of those traits will be passed on to the progeny. It is impossible to outcross generation after generation and keep a similar gene pool continuing. Any dog that looks or behaves like a relative in the 10th generation is a happy accident unless those specific traits have been carefully selected for and passed from generation to generation. Factor in modifiers and degrees of penetration and the possbilty of mutations and it's not hard to see why it's not easy to breed good dogs and linebreeding and some inbreeding must always be part of the equation. .


by joanro on 20 January 2015 - 14:01

From page 74 ;  'Here look at these pictures. I assure you that these dogs have almost identical temperament and if you can  deny similarity in their structure then get glases.:) '
The only similarity in those five dogs is prick ears, four with similar coat pattern, (one appears sable) structure of all 5 very dissimilar. As for temperament being almost identical, how would one go about assuring that with a dog born five or six years before you. This example of dominant genes theory is as convincing as a drawing proving existence of a weapons lab.
BTW, didn't Rolf have any other offspring ,Or was ingo the only one that was a 'super dog' with 'highly dominant genes', that knowingly produced missing testicles that has become so dominant a trait ( supposedly) it can now skip 10 generations, only to reappear from ingo...excluding the genetic contribution of the more than one thousand dogs in between.

by Blitzen on 20 January 2015 - 14:01

Amen, Yogi. Let's see something more than a dog running around in a circle chasing after a toy or else stop dumping on other's dogs. 


Sunsilver

by Sunsilver on 20 January 2015 - 15:01

Yogi, wish I could agree with your post above more than once!!


yogidog

by yogidog on 20 January 2015 - 15:01

bilz i like to see a dogs doing it all as long as its dont right .we will all make smart remarks now and again .but it cant be ever post . . u cant keep doing it because your an ass.Alittle bit of respect will go along way .


by joanro on 20 January 2015 - 15:01

'To me for example it is illogical to vote 2x for Obama   yet the fact is that he is president.'. That's why you and rush don't get to rule the country...your's are not the only votes counted. Same way that no matter how many ways you insult the people who know better, your theory is not going to be accepted by independent thinkers with the intelligence to be able to sort the wheat from the chaff.

Prager

by Prager on 20 January 2015 - 15:01

have you ever noticed that when someone dos not understand something or disagree with something that say that it is outdated or obsolete. Yes some things turn obsolete but laws of genetics same as gravity and , other laws of physics are never obsolete.

 Let me say this one more time why stud lines (   aka male line) work. Studs of importance are chosen for specific desirable characteristics which they pass on their  progeny. If they pass those desirable characteristic it is due to their  dominant genetics ( nothing to do wih behavioral dominance) Then many other breeders would like to breed that dog so that they too can get those characteristics. Then such descendants again  produced those characteristics and some do so  better then the others. If that is recognized by breeders then they too breed to such dogs or eliminate the ones who do not produce  what we want.   And that goes on and on.  The genetic dominance of such trait of the original stud is then combined during type breeding with genetic line breeding or even inbreeding which then  further fixes such traits into the genetic code of the dog.  The dogs who do not display and or produce such characteristics are not being bred and  disappear.  Thus the dogs with desirable characteristics like that have 4 legs and 2 eyes and specific personality and desirable  working ethics will they tend to produce such dogs . Why? Because due to the actions of breeders described above  the gene is so dominant that it will express itself even generations later. That is also enhanced by the fact that such desirable dog is in  great number of pedigrees. Thus even so we do not breed Rolf - Ingo specifically, the breeders  through the purification and because such genes have propensity to express its self and all the other stuff which I said above what you are basically doing when you breed in line is that they  breed, to lesser or greater degree bunch of little Rolfs and Ingos with their virtues and falls. And that system is so amazingly strong that even after 10  generations we did not make a dent into solving that genetic problem like missing testicles   even so we try very very hard, and yet the effort is still under way without much success.  Now imagine that there are traits which we do want to  and do maintain and they to are genetically similarly strong like missing testicles. Then they too will stay for a while or even for ever like 4 legs and 2 eyes.  Well and  it does not matter if you agree or disagree or understand or not understand  and call breeding in line obsolete and click thumbs Thumbs Up up to someone who deny  this because you do not like Hans and like Duke. .  The fact is that what Duke says is in a limited way true because the genetic laws I have just described above but he does not quite obviously understand. However if you do understand this and use this knowledge then you can improve predictability of what you produce and improve the breed. If you do not use that knowledge in a development of a breeding program  and breed  nice doggie to a nice doggie in 1+1=2 fashion, then you may get lucky now and then and for a while,  but if you continue to do so in a long run  you will produce bunch of mutt GSDs = litters  without  a  consistence and predictability which is the main purpose of breeding pure breed dogs. And if you do not get such muts GSDs it is only because some breeders before you did the foundation  work and created the 5 basic blood lines. But since there is less and less such breeders and ignorance of these laws of genetics seems to be ruling as it is witnessed here,... that too leads to decline of the breed. 

I am struggling with this here only hoping some some will get it and that that will help to  GSD I love.  But I learned that you can not win them all. 

 Prager Hans


Koots

by Koots on 20 January 2015 - 15:01

Jemi - thank you for your scientific facts, it's refreshing to read vs. emotional hyperbole.

by Blitzen on 20 January 2015 - 15:01

What are dominant genetics and how are they passed from generation to generation, Hans? Given that all genes are inherited randomly in pairs, one half from each parent, how can one parent be more influential than the other? Even littermates do not share the same genome unless they are identifcal twins, a very rare occurance in the dog world.


Prager

by Prager on 20 January 2015 - 15:01

@  Joan LOL  My theory !!??!! That is what Duke said too. OH WOW WOW and  wow ( thriple !!! wow) you really think of me as a geneticist giant,... a Johannes Mandel of sorts. Well thank you! But I'll humbe myself and will brake to you obviously  really big news. It is not my theory and I am not Johannes Mendel. . LOL> 

 I get it,... this is not about what is true, this is about who will win the argument against Hans. Well thank you again for giving me such importance that you feel compelled to read all my posts and  attack me at just about every post. Here is my advice to you:

Get a Life! 






 


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