RETRACTED ARTICLE: Screening for the presence and prevalence of Edwardsiella tarda infection in fish harvested from Lakes Zeway and Langano, Southern Oromia, Ethiopia

Abstract

A study was carried out from October 2009 to April 2010 with the objective of isolating E. tarda an important fish pathogen from fish harvested for human consumption from Lake Zeway and Langanoo. A total of 372 tissue samples (three from each fish) comprising liver, intestine and kidney were collected from 124 fish (Clarias gariepinus and Oreochromis niloticus). Distribution of E. tarda infection among these three organs examined indicated that E. tarda was isolated most frequently from liver (6.5%) followed by intestine (2.4%) and kidney (0.8%) with significant difference. Statistical significant differences (p 0.05). The current study is signified that E. tarda infection is a potential threat to the fishery sector and public health. Therefore, awareness should be created on the hazardousness of E. tarda on public health significance and hence further studies have to be conducted in other lakes of Ethiopia that harbor fishes.

Keywords

• catfish
• e. tarda
• intestine
• kidney
• langanoo
• liver
• nile tilapia
• zeway