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The Old Man
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Selection plays a huge part in the success of any breeding program, if you started with real clean stock you could get farther without needing an outcross. As far as size goes selection and foundation stock both play a major role, if there were a majority of smaller dogs in the foundation stock line breeding would lead to smaller dogs, the opposite would be true if you only selected the larger dogs, or if the majority of the foundation stock were larger etc and so on.
If you selected only based on performance then the size would lean toward whatever was the best performing stock in that particular line.
The guys that claim to have a "line" of dogs that have several outcrosses in 3 gens or so really only have hybrids that are not a "line" of dogs. Crossbred dogs are just that and should not be considered a "line" of dogs until bred several gens without an outcross even if they are crossbred or hybrid to begin with.
I have saw line bred dogs get smaller and stay large according to foundation and selection. Just because you breed'em your way at your house doesn't make them a true "line" of dogs.
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Logged
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