Edwardsiella ictaluri infection in rainbow trout (Oncorhynchus mykiss)
TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, vol.28, no.4, pp.649-653, 2004 (SCI-Expanded, Scopus, TRDizin)
- Publication Type: Article / Article
- Volume: 28 Issue: 4
- Publication Date: 2004
- Journal Name: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
- Page Numbers: pp.649-653
- Keywords: Edwardsiella ictaluri, Oncorhynchus mykiss, natural infection, DANIO-DEVARIO, SUSCEPTIBILITY, CATFISH
- Ankara University Affiliated: No
Abstract
The aim of this study was to isolate Edwardsiella ictaluri from diseased rainbow trout obtained from a commercial farm in the Ankara region, Turkey. Growth of the microorganism after 36 h of incubation was higher and purer at 28 degreesC than at 37 degreesC on all the organs (liver, spleen, kidney) of the 10 fish examined. Three groups, each consisting of 3 fish were used for experimental infection. All the fish in Group I, which received a pure culture suspension, died after treatment. There were no clinical symptoms of the disease or deaths in Group II treated with 1/50 concentration of the pure culture or in Group III (control group) treated with 0.85% saline. The isolation of E. ictaluri from non-ictalurid fish and the fact that similar bacteria have been isolated from non-ictalurid fish in different countries indicate that the organism is a widespread pathogen. The results from this study show that rainbow trout are susceptible to E. ictaluri and there is a possibility of natural infection.