Tallulah's vet warned me that people food (usually pretty high in fat, even when we're not aware of it) can cause severe pancreatitis in dogs. In fact, that's the most common problem he sees in his Yorkie patients. A lot of people food also has ingredients that can be toxic to dogs - such as onions/onion powder/onion salt or garlic/garlic powder/garlic salt.
You, and more importantly, your little dogs, will be much happier if you stick with food made specifically for small dogs. If you do try the boiled chicken breast, be sure you don't season it. It should be as bland as possible. And as others have said, you should give the new one time to adjust to all of the changes to her life before you try to change her diet.
You should have a tube of Nutrical or other high calorie supplement for dogs on hand. If she gets shaky, give her just a pea-sized dab to avoid hypoglycemia. Don't offer it instead of a meal -- it's like giving a kid a candy bar just before dinner and will just make her less inclined to eat.
Hope you get your new little one back on track soon. |