Bacteriological quality of Rastrineobola argentea along its value chain in Lake Victoria, Mwanza, Tanzania

Global Veterinary Microbiology and Veterinary Medicine Summit

October 17-18, 2016 Chicago, USA

Yaovi Mahuton Gildas Hounmanou, Zebedayo Baniga, Ofred Mhongole, Anders Dalsgaard and Robinson Mdegela

Sokoine University of Agriculture, Tanzania

Posters & Accepted Abstracts: J Veterinar Sci Techno

Abstract :

A cross-sectional study was conducted to assess bacteriological contamination in Rastrineobola argentea along its value chain in Lake Victoria, Tanzania. Raw and dried on raised racks and on ground R. argentea were randomly collected from landing sites, drying areas and retail markets. Bacteria counts, antibiotic susceptibility and PCR were performed to detect Escherichia coli and Salmonella spp. in the samples. Findings showed a significant difference in bacteria counts between raw, ground and racks dried R. argentea. Prevalence of S. typhimurium in raw R. argentea was 20% and in those dried on ground at processing and markets were 20% and 15%, respectively. Salmonella spp. were not detected in R. argentea dried on racks and no S. enteritidis was detected in this study. For E. coli, raw R. argentea had 3.1 log10 mpn/g, those dried on ground had 2.7 log10 mpn/g and on racks had 0.3 log10 mpn/g. Both Salmonella spp. and E. coli were resistant to ampicillin, tetracycline and co-trimoxazole. Sun-drying R. argentea using racks is more hygienic than drying on ground as it provides good quality and safe fish for consumption. R. argentea were contaminated with antibiotic resistant Salmonella spp. and E. coli of public health implications.

Biography :

Email: gilmahu@yahoo.fr