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, Page 251-260 PDF (2 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/scvmj.2015.64637 | ||||
View on SCiNiTO | ||||
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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