Forget about growth charts when it comes to yorkies. Weight and growth is very dependent in the line. And then surprises will happen, you'll have a tiny in the litter or one that is above average.
At 4 weeks of age I'm thrilled when mine make it to a pound and throw a party when they are over a pound. I love it when they are 2 pounds at 8 weeks of age.
In addition at that age, it's milk fat.
__________________ Mardelin Yorkshire Terriers |