Situation of Salmonella infection in chicken meat production chain at some districts of Ha Noi City, 2014 – 2015

Abstract

Result of analysing 1,401 different samples in the chicken meat production chain in Dong Anh, Soc Son, Gia Lam districts, Ha Noi City indicated that Salmonellla bacteria presented at 5 stages of the chicken meat production chain. Of which, there were 61/186 samples collecting at the chicken breeding farms, 30/273 samples collecting at the egg incubation establishments, 60/187 samples collecting at the chicken raising households, 143/330 samples collecting at the slaughterhouses, and 157/425 samples collecting at the selling places. The average Salmonella infection rate in the production chain from the breeding farm, egg incubation establishment, chicken raising household, slaughterhouse to the consumption place was 32.8%, 11%, 32.08%, 43.3%, 36.9% respectively. 50/250 isolated Salmonella strains were taken for virulent analysis, as a result 100 % of the strains were highly virulent, killed the experimental mice at 24 hrs. after injection. There were 10 serotypes of the Salmonella strains determined. Of which, there were 2 serotypes caused food poisoning that were S. typhimurium and S. enteritidis.