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The main purpose of this study is to evaluate the characteristics of poultry farm sand the level of contamination of chickens farmed in the towns of N'Djamena and Doba by Salmonella spp. and Escherichia coli. Information, based on both formal and informal surveys, was collected from ten broiler chicken farms in N'Djamena and 16 traditional farms in Doba, mainly small establishments with low levels of investment. A total of 1,090 samples were taken from these farms over three periods, each of three months, from June to August 2014 then from March to May 2015 for Doba, and from November 2014 to January 2015 for N'Djamena. The NF EN ISO 6579 method and the seeding of a specific eosin methylene blue (EMB) agar were used to isolate 105 bacteria strains, including 65 (5.96%) strains of E. coli on five farms, giving a contamination level of 19.23%, and 40 (3.67%) strains of Salmonella on ten farms, with a contamination level of 38.46%. These high prevalences highlight, for the first time to the authors' knowledge, the contamination levels of the broiler chicken and traditional chicken value chains by Salmonella and E. coli in N'Djamena and Doba.
This article was published in the following journal.
Name: Revue scientifique et technique (International Office of Epizootics)
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