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Originally Posted by MindieRose  Yes genetics are going to determine the ultimate outcome as far as size of pups go. In utero, however, the bitch plays a large role in how large the puppies grow inside of her. Not unlike an alligator in a fish tank. I am sure there are some circumstances where that rule is not followed, such as breeding a much larger BREED of dog, like say a 25 beagle with a 5 lb yorkie, but generally it seems, from what I have studied, the smaller males are bred to the larger females to keep the pups smaller as full grown dogs, not in utero. |
However in yorkies, the normal breeding concepts can be thrown out the window. Smaller male to larger female doesn't help keep the pups smaller as they grow. It's based on the line. You can't breed pheno type to pheno type in yorkies and predict what your gonna get as you can in lets say poodles.
I have a male that his normal weight is 4 pounds, a bit overweight now at 5 1/2 pouns, that throws his father, each and everytime. He's father was 7 pounds. You're very lucky if you have a stud that throws his self.
Also, let's say that you see a dog that has everything you absolutely love, the very best chance of you getting that dog is to breed to his father.