Prevalence of some Salmonella virulence genes from diarrheagenic chickens in Thai Nguyen and Nam Dinh provinces

Abstract

In this study, we collected 60 fecal samples of chickens suffering with diarrhea from Thai Nguyen and Nam Dinh provinces. The rate of fecal samples containing Salmonella was 30%, of which this rate in Thai Nguyen province was 43.33% and in Nam Dinh province was 16.67%. By PCR method, 100% of the isolated Salmonella strains carried the 16S rRNA genes; 66.67% of the strains carried the stn gene and 55.56% of the strains carried the l137 gene. Out of 18
isolated strains, there were 10 strains preliminarily concluded to be S. pullorum strains (55.56%).