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by baja on 22 September 2009 - 16:09
What are your thoughts on have a sire 2-2 in a pedigree
by buckeyefan gsd on 22 September 2009 - 22:09
it would be a grandsire if 2-2.
and it greatly depends on the dog.
search linebreeding in the search messageboard feature,there will be all the opinions wanted.
by Prager on 22 September 2009 - 22:09
If you have to ask this question then you are probably not the one to do it.
There are always added risks in the mating of closely related dogs and those risks are not small.
Reduced fertility both in litter size and sperm viability
Increased genetic disorders
Deformities
Smaller litters
Higher litter mortality
Slower growth rate
Smaller adult size
Loss of immune system function
This is linebreeding, by definition starts with 1/2 brother 1/2 sister which is a milder form of inbreeding and is not as problematic even so this is verey close linebreeding. The inbreeding coeficient in that case would be high (12.5%). Different levels of line breeding is how the new breeds are created and genes of superior dogs are strengthened, if everything is done right.... For example a dog with a desirable trait is bred back within the lines with identified selection of traits whether it be the breed standard of appearance or behavior. Breeders must then cull unfit individuals, and then it is usually necessary that the breeders outcross the superior individual of such linebreeding in order to increase the level of genetic diversity. You must understand that you are strengthening the genes so to speak . That is good and bad(!!) genes.
This is an experimental stuff and only for experienced breeders with thorough knowledge of ALL traits of all the dogs pedigree at least 5 generations back. And on top of it you must have the mental ability to destroy all unfit pups.
Thus it is a double edged weapon. You may improve and you may (and probably will) mess up. I like some linebreedings in 3rd and 4th generation. It is less dangerous. If you are really tough dude you may want to do such close line breeding as an exploratory breeding since most genotypes became phenoenotypes (will show what the genetics of such breeding really are. ) In that case you need to do closest possible inbreeding. Father daughter or brother sister.
Conclusion: You can have sire which is 2/2 and is strongly linebred like thisd only if he is perfect. Again keep in mind that his genes are going to be very dominant and that not all genes may be showing (phenotype) on this stud.
Prager (Hans)
http:www.alpinek9.com
There are always added risks in the mating of closely related dogs and those risks are not small.
Reduced fertility both in litter size and sperm viability
Increased genetic disorders
Deformities
Smaller litters
Higher litter mortality
Slower growth rate
Smaller adult size
Loss of immune system function
This is linebreeding, by definition starts with 1/2 brother 1/2 sister which is a milder form of inbreeding and is not as problematic even so this is verey close linebreeding. The inbreeding coeficient in that case would be high (12.5%). Different levels of line breeding is how the new breeds are created and genes of superior dogs are strengthened, if everything is done right.... For example a dog with a desirable trait is bred back within the lines with identified selection of traits whether it be the breed standard of appearance or behavior. Breeders must then cull unfit individuals, and then it is usually necessary that the breeders outcross the superior individual of such linebreeding in order to increase the level of genetic diversity. You must understand that you are strengthening the genes so to speak . That is good and bad(!!) genes.
This is an experimental stuff and only for experienced breeders with thorough knowledge of ALL traits of all the dogs pedigree at least 5 generations back. And on top of it you must have the mental ability to destroy all unfit pups.
Thus it is a double edged weapon. You may improve and you may (and probably will) mess up. I like some linebreedings in 3rd and 4th generation. It is less dangerous. If you are really tough dude you may want to do such close line breeding as an exploratory breeding since most genotypes became phenoenotypes (will show what the genetics of such breeding really are. ) In that case you need to do closest possible inbreeding. Father daughter or brother sister.
Conclusion: You can have sire which is 2/2 and is strongly linebred like thisd only if he is perfect. Again keep in mind that his genes are going to be very dominant and that not all genes may be showing (phenotype) on this stud.
Prager (Hans)
http:www.alpinek9.com
by SitasMom on 22 September 2009 - 22:09
can anyone suggest a breeding primer?
inbreeding coeficient?????
inbreeding coeficient?????
by Prager on 22 September 2009 - 23:09
You may start here:
http://www.netpets.com/dogs/healthspa/demyst.html
GOOD LUCK!
Prager (Hans)
http://www.alpinek9.com
by SitasMom on 22 September 2009 - 23:09
white peas, pink peas............its 8th grade natural science all over again - only with many more variables........gets very complicated very quickly - i bet.
OK, so a value is placed on each spot on a pedigree and the higher the closer the familial relationships the higher the coeficient.......
the closer the linebreeding the more likely to get the very best AND the very worst in the puppies.............
how does one know what traits are dominate and what are recessive? Other then coat type and color which is charted out on another site........
OK, so a value is placed on each spot on a pedigree and the higher the closer the familial relationships the higher the coeficient.......
the closer the linebreeding the more likely to get the very best AND the very worst in the puppies.............
how does one know what traits are dominate and what are recessive? Other then coat type and color which is charted out on another site........
by Prager on 23 September 2009 - 20:09
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