My Pulga was on Royal Canine when i got her too, after lots of trying i finally found what she likes, orijen, she loves it! actually i have to take it away or she will keep eating until she empties the bowl (i used to free feed).
I always remember what my vet told me when I said she only liked Royal C., he said;
“I can assure that, if you ask a normal kid, what meal he prefers between broccoli and fruits or a happy meal, he will most likely choose the happy meal, does that mean it is the best food for him? Or it that will be healthy in the long run (even if he doesn’t get sick when he eats it)?”
It made sense so, after that, non-premium dog food with questionable ingredients are banned in our home..
ETA: BTW, fot those of you who are unsure about which food your babies might like, here is some info on how to get samples
http://www.yorkietalk.com/forums/yor...e-samples.html