Some vets can give the jill a hormone shot to bring her out of heat. This shot is not very effective, and the jill could have a severe reaction to the shot. You can tell if your jill is in heat because her vulva will swell to about 50 times it's normal seize. The swelling will be about the size of a pencil eraser just bellow the anus. Hobs in Heat Hobs go into season when their testicles become enlarged and drop.
Unneutered hobs have a strong odor and can become aggressive towards ferrets, both male and female.
They usually do not become aggressive towards humans. They do, though, need to burn off excess energy. Spaying and Neutering Ferrets that make the best pets for the average pet owner are spayed and neutered. If you buy an intact animal, your ferret can be spayed or neutered at about 6 months of age. We recommend six months because the ferret will have reached his or her full size and full bone development.