Eissa, I., El-Lamei, M., El-Gaml, A., El-Saeed, I. (2015). 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, 20(2), 251-260. doi: 10.21608/scvmj.2015.64637
Ismaiel Eissa; Maather El-Lamei; A. El-Gaml; Inas El-Saeed. "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, 20, 2, 2015, 251-260. doi: 10.21608/scvmj.2015.64637
Eissa, I., El-Lamei, M., El-Gaml, A., El-Saeed, I. (2015). '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, 20(2), pp. 251-260. doi: 10.21608/scvmj.2015.64637
Eissa, I., El-Lamei, M., El-Gaml, A., El-Saeed, I. 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, 2015; 20(2): 251-260. doi: 10.21608/scvmj.2015.64637
Role of Freshwater Crayfish Procambarus clarkii in Transmission of Motile Aeromonas Septicemia to Nile Tilapia Oreochromis n (one mark)
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.
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