Experimental infection of cockerels with Salmonella typhimurium.

Six-month-old SPF Brown Leghorn cockerels were experimentally infected per os with S typhimurium (1 times 1010) and slaughtered at intervals up to 42 days following infection. Observations were made on the clinical pathology, bacteriology and serology during the course of infection and extensive bacteriological examinations were undertaken after post mortem examination.