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Title: Clinical And Pathological Investigation Of Psychrobacter Immobilis Infection In Rainbow Trour (Oncorhynchus Mykiss, Walbaum) 
Author: Hisar, Olcay; Yanik, Telat; Hisar, Sükriye Aras
Date: 2002
Publisher: Israeli Journal of Aquaculture - BAMIGDEH
Citation: Hisar, O., Yanik, T., & Hisar, S.A. (2002). Clinical And Pathological Investigation Of Psychrobacter Immobilis Infection In Rainbow Trour (Oncorhynchus Mykiss, Walbaum). The Israeli Journal of Aquaculture - Bamidgeh, 54(4), 189-196.
Abstract: The pathogenicity of Psychrobacter immobilis, isolated from naturally infected rainbow trout Oncorhynchus mykiss, was investigated. In experimentally-infected trout, no mortality was recorded during 35 days but the following external and internal symptoms were observed. Externally, skin was darkened, gills were pale and swimming was abnormal. Internally, there were dilatations of the vascular structures on cross-sections of the liver; vascular congestion, inflammatory mononuclear cell infiltration and degeneration in the gills; interstitial inflammatory mononuclear cell infiltration and free bleeding in patches of the posterior kidney; vascular con- gestion and free bleeding in the spleen; degeneration, atrophy, polymorphonuclear leukocyte infiltration and liquefaction necrosis in muscle fibers; edema, inflammatory mononuclear cell infil- tration and basophilic degeneration among muscle fibers of the heart; and congestion in vascu- lar structures on cross-sections of the brain tissue. It is suggested that P. immobilis is an oppor- tunist pathogen that causes secondary infections.
Series/Report No.: The Israeli Journal of Aquaculture - Bamidgeh
Pages/Duration: 8 pages
ISSN: 0792-156X
URI: http://hdl.handle.net/10524/19062
Keywords: bacteria, pathology, Psychrobacter immobilis infection, rainbow trout
LC Subject Headings: Fish culture--Israel--Periodicals.
Fish culture--Periodicals.
Aquaculture--Israel--Periodicals.
Aquaculture--Periodicals.

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