Submitted to: Livestock Conservation Institute Proceedings
Publication Type: Proceedings
Publication Acceptance Date: April 6, 1995
Publication Date: N/A
Technical Abstract: Samples of swine feed and feed ingredients were obtained from storage and feeding sites on 23 farms in 8 states. Samples were cultured for the presence of Salmonella. Isolations were made from at least one feed or ingredient on 11 (48%) of the farms. Of the 950 samples taken, 29 (3.1%) were positive for Salmonella. Ten different serotypes were isolated. The Salmonella isolated from complete ground and pelleted feeds came from those samples obtained from feeders, troughs, the floor, or bulk storage areas. Salmonella isolated from feed ingredient samples were obtained from bagged storage with the exception of one grain sample (corn) from the feedmill floor. From information obtained, it appears that Salmonella may be a common inhabitant of the swine raising environment. Salmonella isolated from samples taken from feeders, troughs, the floor, or bulk storage areas could certainly have originated from sources other than the feed or ingredients. Those isolated from the bagged feed ingredients, fishmeal and grower-finisher premix probably originated from those components.