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Originally Posted by rubyhunz  please dont inbreed =/ i had a rott thats mother and father were brother/sister (i did not know when I got him) and he was not normal...it does nothinig for the breed. |
Actually, linebreedings and inbreeding can help the breed. By setting type, temperament and health.
Any breeder must be willing to cull.
When a breeder inbreeds or does close linebreedings, a breeder MUST be willing to look at the litter with complete honesty and objectivity (which should happen in any breeding!) and make harsh and difficult decisions. Either things will be really, really good... or really really bad.
I'm not sure what the norm is, Onyx, but I would consider my Poohbear's breeding an inbreeding (grandson to grandaughter, or 1/2 brother to 1/2 sister, basicly). This litter produced smaller bone and substance, and temperaments which I would now, after a decade in the breed, consider a bit weak in nature. It actually improved elbows and there was only one pup who suffered from thyroid issues, which had been an issue in the lines (my girl, during pregnancy... her thyroid went back to normal once spayed?!?).
Inbreeding, to me, would be father/daughter, brother/sister, mother/son, 1/2 brother/ 1/2 sister.
Linebreeding could be anything from grandfather/grandaughter to having the same dog in the pedigree several times in the first 3-4 generations.
i.e.: "SuperDog vom K9" might be the sire in the 5th generation, the 3rd generation, and his son "SuperClone vom K9" might be the sire in the 2nd and 1st generation, top and/or bottom side, thus mingling SuperDog's genes down the line to (hopefully) bring out his strong points.
I have no issues with doing tight linebreedings or even inbreedings. It will truly bring out the best... and the worst in the lines one is working with. A breeder really needs to know the lines like the back of his/her hand to do this intelligently. This is when good mentors can really come into play.