[Studies for the presence of Salmonella in the bone marrow of normal slaughtered pigs (author's transl)].

Of sixty pigs in which the tonsils, mesenteric lymph nodes, caecal contents, liver and bile, urinary bladder and bone marrow were examined for the presence of Salmonella, thirty-six (60 per cent) were found to be positive. The results were as follows: tonsils alone one, mesenteric lymph nodes alone five, tonsils plus mesenteric lymph nodes two, mesenteric lymph nodes plus caecal contents seven, tonsils plus caecal contents six, tonsils plus mesenteric lymph nodes plus caecal contents six, caecal contents plus liver and bile one, mesenteric lymph nodes plus caecal contents plus liver and bile one. Salmonella was not found to be present in the urinary bladder and bone marrow. It is oncluded that in the manufacture of "meat" (muscular tissue obtained by scraping bones), the bone marrow fraction does not contribute to contamination of this meat with Salmonella. Of the total number of seventy-eight strains isolated, fifty-two were of the sero-type S. typhimurium (66 2/3 per cent).