you might want to try some boiled chicken and some rice. Maybe he would eat some cottage cheese.
You also might want to read up on quality dog/puppy foods. Here's a website that compares food. (fyi a 6 star food is likely to much for a yorkie, look at a good 4 or 5 star food)
http://www.dogfoodanalysis.com/dog_f...ndex.php/cat/1
hopefully someone else might have some other ideas for you
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