Ok, first off, how long ago did you rescue her? If it was recent, then maybe a vet trip is in order with a stool sample. I say this because I just adopted a new cavalier king charles spaniel about 2 months ago and she had some worm issues that were causing her to not have an appetite. Even if you've had your dog for awhile, maybe you should still take a stool sample in.
If your dog is healthy, then I would practice the "tough love" routine....put the food out for about 20 mins. in the morning. If she doesn't eat it, take it up and give her the same kind of food (if dry, just use the same food) in the evening. Again, leave it there for about 20 mins. Take it up, if she doesn't eat. Eventually, she will eat! Constantly switching food can make a picky eater, but not always, and is different than rotating foods. Eagle Pack Holistic Select is a great food and if that's what you want to feed, that's fine. If for some reason, she doesn't do well on EPHS, you can try others. Right now, in my rotation, I am using Nature's Variety Instinct Duck & Turkey and also using their raw medallions. Everyone at my house is definitely eating their food lol! I would just feed the raw, but my dogs do get boarded occasionally and I want them somewhat used to eating kibble. Good luck with your dog. I, too, have one picky one so I understand what you are going thru.
