I did a little experiement some yrs ago, 2 ferrets were fed on dry alone, 2 were fed meat alone & 2 were fed a mix of the two, the ferrets that i found looked better physically were the ferrets fed on a mix of the two.
The ferrets fed on dry alone were over weight but had good coats, the pair fed on meat were not fat but there coats were not as lush , the 3 rd pair had slightly less dry food but seemed to be just right, there coats wwere good they wernt overweight , so i feed the two options, we all know meat is essential for there well being but the dry food added as a standby can mak