
Didnt the breeder tell you what food????? As the best food to feed her on is the food the breeder has fed her on. If they havnt, ring them and ask them. If you cant, put her on which ever good quality food you wish and stick to it. As chopping and changing food is no good for adults let alone puppies.
Any of the higher range foods are good. Do a search. I used Eukanuber, but there alot around with both good and bad reports.
HTH
Lea :)