There are more less obvious reproductive failures associated with other deficiencies such as low litter rates, abortions, stillbirths, fur and tail biting, sterility in males, and reproductive failure. It is also necessary that one should take care in the interpretation and origin of feed results. The two systems are very different and results from one cannot be interchanged with the other. There usually is a big difference between DM and ME values. Using all meat diets also can cause problems for furbearers resulting in a condition called rickets.
Bones can become soft and deformed.
Also, reproduction and lactation can be adversely affected. Therefore, a balanced diet should always be fed to a furbearer.