2Ryll M,Christensen H,Bisgaard M,et al.Studies on the prevalence of Riemerella anatipestifer in the upper respiratory tract of clinically healthy ducklings and characterization of untypable strains[J].Journal of Veterinary Medicine Series B,2001,48:537-546.
3Tsai H J,Liu Y T,Tseng C S,et al.Genetic Variation of the ompA and 16S rRNA genes of Riemerella anatipestifer[J].Avian Pathology,2005,34:55-64.
4Hinz K H,Ryll M,K? hler B,et al.Phenotypic characteristics of Riemerella anatipestifer and similar micro-organisms from various hosts[J].Avian pathology,1998,27:33-42.
5Seger P,Mannheim W,Vancanneyt M,et al.Riemerella anatipestifer gen.nov.,comb.nov.,the causitive agent of septicemia anserum exsudativa,and its phylogenetic affiliation within the Flavobacterium-Cytophaga rRNA homology group[J].International Journal of Systematic Bacteriology,1993,43(4):768-776.
6Weisburg W G,Barns S M,Pelletier D A,et al.16S ribosomal DNA amplification for phylogenetic study[J].Journal of Bacteriology,1991,173:697-703.
8Loh H,Teo T P,Tan HC.Serotypes of Pasteurella anatipestifer isolates from ducks in Singapore:a proposal of new serotypes[J].Avian Pathology,1992,21:453-459.
9Dieffenbach C W,Dveksler G S.PCR Primer:A laboratory Manual[M].Cold Spring Harbor Laboratory Press,1995.
10Kong P,Hong C X,Tooley P W,et al.Rapid identification of Phytophthora ramorum using PCR-SSCP analysis of ribosomal DNA ITS-1[J].Letters in Applied Microbiology,2004,38:433-439.
6Ryll M, Hinz K H. Exclusion of strain 620/89 as type strain for semvar 20 of Riemerella anatipestifer [J].Berl Munch Tierarztl Wochenschr, 2000, 113(2): 65.
7Pathanasophon P, Phuektes P, Tanticharoenyos T, et al. A potential new serotype of Riernerella anatipestifer isolated from ducks in Thailand [J]. Avian Pathology, 2002, 31(3):267-270.
8Brogden K A, Rhoades K R, Rimler R B. Serologic types and physiologic characteristics of 46 avian Pasteurella anatipestifer cultures [J]. Avian Diseases,1982, 26: 891-896.
9Sandhu T S, Leister M L. Serotypes of Pasteurella anatipestifer isolates from poultry in different countries [J]. Avian Pathology, 1991, 20: 233-239.
10Loh H, Teo T P, Tan H C. Serotypes of Pasteurella anatipestifer isolates from ducks in Singapore: a proposal of new serotypes [J]. Avian Pathology, 1992,21: 453-459.