Krys,
While I have never heard that prophylaxis treatment of asper is "normal" in the medical world...
From your experinces do you; recommend prophylactic treatment of asper in most cases? Does it depend on location?
While I always treat for parasites right off I have only done prophylactic treatment in Gyrs, passage goshawks, 1 passage coopers, and new 3/4 Gyrs for asper....