Prevalence of Pathogenic Vibrio anguillarumAmong Oreochromis niloticusFish Fingerlings Infected with Saprolegniasis Around Qarun Lake
Younes, A., Gaafar, A., Abu-Bryka, A., Mohamed, L. (2021). Prevalence of Pathogenic Vibrio anguillarumAmong Oreochromis niloticusFish Fingerlings Infected with Saprolegniasis Around Qarun Lake. EKB Journal Management System, 52(2), 257-266. doi: 10.21608/ejvs.2021.67242.1222
Abdelgayed M. Younes; Alkhateib Gaafar; Alaa El-Din Z. Abu-Bryka; Laila Ali Mohamed. "Prevalence of Pathogenic Vibrio anguillarumAmong Oreochromis niloticusFish Fingerlings Infected with Saprolegniasis Around Qarun Lake". EKB Journal Management System, 52, 2, 2021, 257-266. doi: 10.21608/ejvs.2021.67242.1222
Younes, A., Gaafar, A., Abu-Bryka, A., Mohamed, L. (2021). 'Prevalence of Pathogenic Vibrio anguillarumAmong Oreochromis niloticusFish Fingerlings Infected with Saprolegniasis Around Qarun Lake', EKB Journal Management System, 52(2), pp. 257-266. doi: 10.21608/ejvs.2021.67242.1222
Younes, A., Gaafar, A., Abu-Bryka, A., Mohamed, L. Prevalence of Pathogenic Vibrio anguillarumAmong Oreochromis niloticusFish Fingerlings Infected with Saprolegniasis Around Qarun Lake. EKB Journal Management System, 2021; 52(2): 257-266. doi: 10.21608/ejvs.2021.67242.1222

Prevalence of Pathogenic Vibrio anguillarumAmong Oreochromis niloticusFish Fingerlings Infected with Saprolegniasis Around Qarun Lake

Egyptian Journal of Veterinary Sciences
Article 15, Volume 52, Issue 2, August 2021, Page 257-266  XML PDF (2.02 MB)
Document Type: Original Article
DOI: 10.21608/ejvs.2021.67242.1222
View on SCiNiTO View on SCiNiTO
Authors
Abdelgayed M. Younesorcid 1; Alkhateib Gaafar email orcid 1; Alaa El-Din Z. Abu-Bryka2; Laila Ali Mohamed2
1Hydrobiology Department, Veterinary Research Division, National Research Centre, El Buhouth St., Dokki, 12311 Cairo (Egypt)
2Hydrobiology Department, Veterinary Research Division, National Research Centre, El Buhouth St., Dokki, 12311 Cairo (Egypt).
Abstract
Vibrio anguillarum causes severe economic losses in fish and shellfish species and poses public health concerns. This study aimed to provide some information about the prevalence and virulence determinants of V. anguillarum isolated from the farmed Oreochromisniloticus fish fingerlings nearby Qarun Lake, El-Fayoum Governorate, Egypt. PCRtargeting the rpoA (RNA polymerase alpha subunit)gene was done forconfirmation of Vibriospp. Moreover, V. anguillarum isolates were biochemically identified and confirmed by 16S rRNA gene sequence.V. anguillarum isolates produced caseinase, gelatinase, lipase, lecithinase, haemolysins, and possessed biofilm formation. The virulence-related genes;empA, vah1, vah3 and vah4, flaA,angM, and angRwere detected in all tested isolates. Therefore, proper identification of V.anguillarumis crucial to better understand the ecology and distribution patterns of such pathogen within Egyptian aquaculture. Moreover, the water quality in these farms near Qarun Lake was less supportive for larval rearing activities of O. niloticus fish.
Keywords
Vibrio anguillarum; virulence genes; Oreochromis niloticus fingerlings; Egypt
Statistics
Article View: 337
PDF Download: 342