As a couple of YT's experienced and respected and experienced breeders have said in posts in this thread and others, growth charts can be very useful to give us guestimates. Sometimes they are very accurate, but sometimes not.
Unless you are dealing with breeders who are very knowledgeable about genetics and have extensive information about their lines and how specific sires and dams genes mesh to produce pups, it is very difficult to predict adult size. Even then, in the end, you get what you get.
Both my Lollie's and Lacie's adult size/weight are very close to what the breeders predicted. They came from two very respected AKC Yorkie Breeders/Exhibitors. Their genetic lines were well documented for many generations. Both of these breeders KNEW enough about the history of their dogs and bitches to have a good understanding of what breeding outcomes would be. But but even with all of their experience and knowledge, sometimes a rouge "biggie" or "tiny" was thrown in the mix. |