− | Most ferrets utilised for laboratory studies are males due to oestrous related health problems associated with females. Laboratory ferrets are often purchased pre-castrated and 'de-scented' (i.e. anal gland sacculectomy). | + | Most ferrets utilised for laboratory studies are males due to oestrous related health problems associated with females. Female ferrets are induced ovulators and can develop severe hyperoestrous if not mated. Laboratory ferrets are often purchased pre-castrated and 'de-scented' (i.e. anal gland sacculectomy). |