The Isolation Ratio after Incubation between Simultaneous Inoculated Salmonella Chester with Salmonella Oranienburg, Salmonella Infantis and Salmonella Enteritidis

Abstract

An examination was conducted to determine whether the isolation ratio of two serotypes of Salmonella inoculated simultaneously and then incubated varies with the enrichment broth and isolating medium used. Some serotypes were found to have a higher isolation ratio when a certain broth or medium was used. The isolation ratio varied with the serotype combinations. When S. Oranienburg and S. Chester were simultaneously inoculated and cultured in SC. S. Oranienburg was isolated in TSA at a higher ratio.
When S. Oranienburg and S. Chester were simultaneously inoculated in sterile physiological saline solution and isolated in SS agar, S. Oranienburg was detected at a ratio lower by one order.
When S. Infantis and S. Chester were simultaneously inoculated and cultured in TT or RV, the isolation ratio of S. Infantis lowered. When S. Enteritidis and S. Chester were simultaneously inoculated and cultured in RV, the isolation ratio of S. Enteritidis decreased.