Abstract
C. auratus, the common goldfish, has been experimentally infected with Salmonella typhimuriun, isolated from river fishes, and S. typhimurium var. Copenhagen, cultured from a pig. Infections had a duration of at least 91 days. Salmonellae colonized in the viscera of the fish and were in all probability shed in their feces. Fewer of the bacteria were present in the environmental water than were present within the fish during the period of the experiment. This finding confirms that colonization and multiplication of the Salmonella within the fish viscera had occurred.