Best dry dog food

Update on gunny's condition,after the first vet visit we took her the next day to the emergency animal hospital where she had X-rays and more blood work ,all that did was eliminate things no idea of what the problem is . She was sent home with an antibiotic to take twice a day and advice on what to feed her. She absolutely would not eat anything ,so a call to the vet was made and was advised to stop the meds for one day,which I did and she immediately started eating ( Hamburg and rice ) gave her her meds and no eating again . So I stopped the meds and she is eating , stools are runny ,but no blood. This is where I'm at today .