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Originally Posted by spr377  And then again, I have a 6 1/2 pound male that produces small puppies!  You just never know!!  |
Yes, my answer wasn't complete, but that is why it's important to know the line. You might be better off using a 6 pound stud who is the biggest in his line, that a 4 pound stud, whose relatives were all 12 pounders! While you never "know", you can take an educated guess with genetics.