There is a book and the only one out there that I know of that covers all these
changes. It has a whole chapter on "breaking patterns". I'm sure you can get
it on Amazon.com. The Complete Yorkshire terrier by Joan B. Gordon and Janet
E. Bennett
It's much too involved to go into on this site. One thing I know is the ears are the
last to clear so if you have a pup at a young age with a nice quality gold already on the ears, you have a good chance of that head clearing completely to a nice rich gold
but there are other thing to it also. I highly recommend this book. |