She is beautiful and welcome to YT. There is so much to learn here. Here is a link to the dogfoodanalysis which rates and reviews dog food. Pedigree is only given a 1 star rating you can read the why it was rated so low in the link. I was using Science diet which was also a rating 1 and now have switched to Solid Gold puppy. My pups seem to like it.
http://www.dogfoodanalysis.com/dog_f.../cat/7/page/13