Role of Freshwater Crayfish Procambarus clarkii in Transmission of Motile Aeromonas Septicemia to Nile Tilapia Oreochromis n (one mark) | ||
| Suez Canal Veterinary Medical Journal. SCVMJ | ||
| Article 18, Volume 20, Issue 2, December 2015, Pages 251-260 PDF (2 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/scvmj.2015.64637 | ||
| Authors | ||
| Ismaiel Eissa1; Maather El-Lamei1; A. El-Gaml2; Inas El-Saeed* 3 | ||
| 1Dept.of Fish Diseases and Management, Fac. of Vet. Medicine, Suez Canal Univ. | ||
| 2Animal Health Research Institute, Mansoura branch | ||
| 3Animal Health Research Institute, Mansoura branch. | ||
| Abstract | ||
| A total of 60 Nile tilapia fish Oreochromis niloticus were collected from River Nile (Damietta branch): Weesh El-Hagar village during late summer. An experimental infection was applied on apparently healthy Nile tilapia (three equal groups) by intramuscular injection of 0.1 ml of 2.4X107 CFU/ml of well identified A. hydrophila suspension isolated from freshwater crayfish P. clarkii, while, the third group was injected 0.1 ml of sterile buffered saline . The clinical picture, morbidity and mortality rates were recorded for 7 days. The results showed that all injected tilapia died by the end of experiment with a mortality peak on the 3rd day, while the morbidity started to appear by the 2nd day (10%). The histopathological alterations were recorded and discussed. This study suggests an epidemiological significance of Aeromonas hydrophila and the role of crayfish in its transmission. | ||
| Keywords | ||
| Oreochrmis niloticus; Procambarus clarkii; Aeromonas hydrophila | ||
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