The effect of route of inoculation on the virulence of raptorial Pasteurella multocida isolates in Pekin ducks (Anas platyrhynchos).
The purpose of this study was to determine the virulence of raptorial Pasteurella multocida for ducks and the effect of various routes of inoculation on virulence. Four-week-old Pekin ducks (Anas platyrhynchos) were challenged with one of three raptorial isolates (RTHA-2, RTHA-4, or WESO-1) by one of five inoculation routes (intranasal, intraocular, intravenous, oral, and subcutaneous). Ducks were monitored daily for mortality until 2 wk postchallenge. Results indicated that the intravenous route caused the most mortality for all isolates and that significant variation existed in the virulence among the sources of P. multocida, with WESO-1 causing the least mortality of the isolates tested.
Pehlivanoglu
F
F
Department of Veterinary Preventive Medicine, Ohio State University, Columbus 43210-1092, USA.
Morishita
T Y
TY
Aye
P P
PP
Porter
R E
RE
Angrick
E J
EJ
Harr
B S
BS
Nersessian
B
B
D000818:Animals; D001715:Bird Diseases / Q000382:microbiology / Q000635:transmission*; D004372:Ducks; D010326:Pasteurella Infections / Q000382:microbiology / Q000635:transmission / Q000662:veterinary*; D016979:Pasteurella multocida / Q000145:classification / Q000472:pathogenicity*; D012703:Serotyping