Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/30865
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Establishing bacterial infectivity models in striped Catfish Pangasianodon hypophthalmus (Sauvage) with Edwardsiella ictaluri
Author(s): Ngoc Phuoc, Nguyen
Richards, Randolph
Crumlish, Margaret
Contact Email: margaret.crumlish@stir.ac.uk
Keywords: bacillary necrosis of Pangasianodon
cohabitation challenge
Edwardsiella ictaluri
immersion challenge
Pangasianodon hypophthalmus
Issue Date: Mar-2020
Citation: Ngoc Phuoc N, Richards R & Crumlish M (2020) Establishing bacterial infectivity models in striped Catfish Pangasianodon hypophthalmus (Sauvage) with Edwardsiella ictaluri. Journal of Fish Diseases, 43 (3), pp. 371-378. https://doi.org/10.1111/jfd.13135
Abstract: A bacterial infectivity challenge model of Edwardsiella ictaluri in striped catfish was developed. All experiments were conducted using a bacterial isolate of E. ictaluri that had been recovered during a natural outbreak of bacillary necrosis of Pangasianodon (BNP) in farmed striped catfish Pangasianodon hypophthalmus in Vietnam. Time of immersion in 107 CFU.ml−1 had a significant effect on mortality. The immersion bacterial dose of 107 CFU/ml for 30 s resulted in a cumulative percentage mortality of 63%. Three to four days post‐bacterial challenge, fish showed gross clinical signs of natural BNP and E. ictaluri was recovered and identified from these fish. Moreover, a cohabitation challenge was evaluated as an alternative challenge method, although the mortalities among the infected fish were lower at around 15%–40%. This study confirmed the horizontal transmission of E. ictaluri in striped catfish and elucidated that cohabitation challenge could be used in reproducing the disease under controlled conditions.
DOI Link: 10.1111/jfd.13135
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is the peer reviewed version of the following article: Ngoc Phuoc, N, Richards, R, Crumlish, M. Establishing bacterial infectivity models in striped Catfish Pangasianodon hypophthalmus (Sauvage) with Edwardsiella ictaluri. Journal of Fish Diseases 2020; 43: 371-378, which has been published in final form at https://doi.org/10.1111/jfd.13135. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archiving.

Files in This Item:
File Description SizeFormat 
Phuoc_et_al-2020-Journal_of_Fish_Diseases.pdfFulltext - Accepted Version912.34 kBAdobe PDFUnder Embargo until 2021-02-07    Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.



This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.