My opinion is that the reason for using a larger female, is because it is easier for her to whelp, if she is larger, not ONLY because she will throw small pups, but because she will throw smaller pups, AND it will be easier for her to whelp. If you are breeding a larger male, to a smaller female, there is a possibility that the male could throw a larger pup that is too large for the female. The reason that a large female is used is for an easier delivery on the Mom. If I had a 6 lb female, I would not want to breed with an 8 lb male, even if he came from small parents, because there is a possibility he can throw a larger pup, that would be too large for a 6 lb female.....does that make sense? |