A Franklin-Silvernan biopsy needle was used to obtain 2-5- X 1-2-mm mandibu
lar salivary gland tissue samples percutaneously from nine North American r
iver otters (Lutra canadensis). The samples were suitable for fluorescent a
ntibody or polymerase chain reaction rabies testing. Ninety-two percent (11
/12) of the biopsy procedures yielded histologically confirmed salivary gla
nd tissue, and the remaining biopsy yielded adipose tissue. No complication
s were noted after 5-21 days.