Aeromonas salmonicida infected fish transfer disease to healthy fish via water
| Autor: | Vesta Skrodenytė-Arbačiauskienė, Nijolė Kazlauskienė, Tomas Virbickas, Milda Zita Vosylienė |
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| Rok vydání: | 2012 |
| Předmět: |
Veterinary medicine
Perch food.ingredient General Immunology and Microbiology biology QH301-705.5 Ecology animal diseases General Neuroscience Outbreak biology.organism_classification General Biochemistry Genetics and Molecular Biology Aeromonas salmonicida food medicine.anatomical_structure White blood cell medicine Agar Fish Sea trout Biology (General) General Agricultural and Biological Sciences Bacteria |
| Zdroj: | Open Life Sciences, Vol 7, Iss 5, Pp 878-885 (2012) |
| ISSN: | 2391-5412 |
| Popis: | Experimental studies of infection transmission via water from infected to healthy fish were conducted. The dark-brown bacterial colonies typical for Aeromonas salmonicida on tryptone soya agar (TSA) have been isolated and counted (from 3.0±0.6×102 to 3.5±0.5×105 c.f.u. g−1) from the internal organs of naturally infected (NI) and experimentally infected (EI) perch and sea trout. No significant differences in dark-brown bacterial counts were detected between EI perch and EI sea trout. The assessment and comparison of the alterations of the biological parameters of EI European perch and sea trout with bacterium Aeromonas salmonicida subsp. salmonicida with naturally infected perch were conducted. No mortality was recorded in groups of EI perch and sea trout. Whereas, the mortality of NI perch (collected from the main sites of outbreak of disease) was observed from the second day of the experiments. Changes in morphophysiological parameters of EI perch and sea trout were similar. Different alterations in blood cell parameters of EI fish were observed, and the most noticeable was the decrease (P≤0.01) in white blood cell count (WBC) of EI perch and sea trout. Based on these results it can be deduced that there is infection transmission of bacterium A. salmonicida from European perch via water to other fish species. |
| Databáze: | OpenAIRE |
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