Liver Disease. When elevated AST indicates damage to the liver, this damage can come from a variety of different causes, both in the sense of indicating various liver diseases and also in the sense of the diseases being due to various causes.
HEALTH. Ferrets live for 6 to 10 years and during that time they will require regular vaccinations and veterinary check ups to remain in tip top shape. In particular, Ferrets are prone to canine distemper and heartworm, so regular preventative treatments like Heartguard should be used.
Flea collars, however, cause severe irritation on your ferret's skin and can lead to serious health problems because of the dichlorvos they contain. Flea collars should NEVER be used on a ferret! Also, do not let your ferret in contact with the flea sprays or powders used on your floors until it is safe to do so.