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Appl Environ Microbiol. 1969 November; 18(5): 703-707
Copyright © 1969 American Society for Microbiology. All Rights Reserved.

Salmonella in Wastes Produced at Commercial Poultry Farms¹

^a Department of Environmental Sciences, College of Agriculture and Environmental Science, Rutgers, The State University, New Brunswick, New Jersey 08903

ABSTRACT

Composite samples of freshly voided excreta from 91 poultry houses were tested qualitatively for Salmonella; 26 (29%) were positive. The houses were located on 36 farms, 18 of which (50%) yielded one or more positive samples. In a separate, quantitative study, Salmonella densities ranged from less than 1 to over 34,000 per g of excreta (dry weight). High densities were noted in waste from cage houses, but not in waste from floor houses (litter or wire floors). Salmonella-shedding chickens were located in only one small area of the row of cages examined in detail. A total of 15 Salmonella serotypes were identified during the study.

² Present address: Laboratory of Applied Microbiology, Division of Engineering and Applied Physics, Harvard University, Cambridge, Mass. 02138.

¹ Paper in the Journal Series, New Jersey Agricultural Experiment Station, Rutgers, The State University, Department of Environmental Sciences, New Brunswick, N.J.