A Prevalence Survey of Salmonella in Raw Milk in Ontario, 1986-87.

In a survey to determine the incidence and prevalence of Salmonella in the bulk milk supply of dairy farms in southwestern Ontario 1986-87, milk filters from 813 farms were cultured over four sampling periods in six months. Prevalence rates during the four sampling periods were as follows: September 1986: 1.23%; October-November: 0.40%; December-January: 0.19%; and February 1987: 0%. Incidence rates increased from 0.15% per month in the first sampling period to 0.20% in the second and third period, then dropped to 0% in the fourth sampling period. Eight isolates of S. muenster and two of S. mbandaka were recovered from nine different farms. All of the isolates were sensitive to the commonly used antimicrobials tested. Owing to the steady decline in the prevalence over the study period, no seasonal patterns were apparent. The results of this survey indicate that the presence of Salmonella in bulk milk supplies is dynamic.

[1]  N. N. Potter,et al.  Survival and Growth of Aeromonas hydrophila , Vibrio parahaemolyticus , and Staphylococcus aureus on Cooked Mince and Surimis made from Atlantic Pollock. , 1988, Journal of food protection.

[2]  S. Martin,et al.  Factors associated with the presence of Salmonella spp. in dairy farm families in southwestern Ontario. , 1988, Canadian journal of public health = Revue canadienne de sante publique.

[3]  J. McDermott,et al.  The prevalence, incidence, geographical distribution, antimicrobial sensitivity patterns and plasmid profiles of milk filter Salmonella isolates from Ontario dairy farms. , 1988, Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.

[4]  R. Clarke,et al.  Plasmids of Salmonella muenster and their relation to virulence. , 1987, Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.

[5]  R. W. Nelson,et al.  Use of Laminated High and Low Density Polyethylene Flexible Packaging to Store Trout ( Salmo Gairdneri ) in a Modified Atmosphere. , 1987, Journal of food protection.

[6]  J. Hotchkiss,et al.  MICROBIOLOGICAL AND SENSORY EVALUATION OF COOKED ROAST BEEF PACKAGED IN A MODIFIED ATMOSPHERE , 1987 .

[7]  B. Rose,et al.  Incidence and Toxigenicity of Aeromonas Species in Retail Poultry, Beef and Pork. , 1987, Journal of food protection.

[8]  N. N. Potter,et al.  Microbial Growth in Surimi and Mince made from Atlantic Pollock. , 1987, Journal of food protection.

[9]  J. Hotchkiss,et al.  Comparative Growth of Spoilage and Pathogenic Organisms on Modified Atmosphere-Packaged Cooked Beef. , 1987, Journal of food protection.

[10]  J. Lanier,et al.  Salmonella , Campylobacter jejuni , and Yersinia enterocolitica in Raw Milk. , 1987, Journal of food protection.

[11]  J. Steele,et al.  Chloramphenicol-resistant Salmonella newport traced through hamburger to dairy farms. , 1987, The New England journal of medicine.

[12]  M. L. Cohen,et al.  Drug-resistant Salmonella in the United States: an epidemiologic perspective. , 1986, Science.

[13]  G. Stelma,et al.  Recovery of Aeromonas hydrophila from Oysters Implicated in an Outbreak of Foodborne Illness. , 1986, Journal of food protection.

[14]  J. Hotchkiss,et al.  Effect of an elevated level of carbon dioxide containing atmosphere on the growth of spoilage and pathogenic bacteria at 2, 7, and 13 C. , 1986, Poultry science.

[15]  D. Hird,et al.  Salmonellosis in hospitalized horses: seasonality and case fatality rates. , 1986, Journal of the American Veterinary Medical Association.

[16]  S. Martin,et al.  The relationship among current management systems, production, disease and drug usage on Ontario dairy farms. , 1986, Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.

[17]  R. Stephan,et al.  Epidemiology of Virulence-Associated Plasmids and Outer Membrane Protein Patterns Within Seven Common Salmonella Serotypes , 1986, Infection and immunity.

[18]  J. D'aoust,et al.  Salmonella typhimurium Phage-Type 10 from Cheddar Cheese Implicated in a Major Canadian Foodborne Outbreak. , 1985, Journal of food protection.

[19]  R. Buchanan,et al.  Starch-Ampicillin Agar for the Quantitative Detection of Aeromonas hydrophila , 1985, Applied and environmental microbiology.

[20]  R. Buchanan,et al.  Influence of Temperature, NaCI, and pH on the Growth of Aeromonas Hydrophila , 1985 .

[21]  D. Furgang,et al.  Development of Botulinal Toxin and Sensory Deterioration During Storage of Vacuum and Modified Atmosphere Packaged Fish Fillets , 1985 .

[22]  C. Tacket,et al.  An outbreak of multiple-drug-resistant Salmonella enteritis from raw milk. , 1985, JAMA.

[23]  R. Buchanan,et al.  AEROMONAS HYDROPHILA and AEROMONAS SOBRIA AS POTENTIAL FOOD POISONING SPECIES: A REVIEW , 1985 .

[24]  Salmonella dublin and raw milk consumption--California. , 1984, MMWR. Morbidity and mortality weekly report.

[25]  S. D. Holbert,et al.  Drug-resistant Salmonella from animals fed antimicrobials. , 1984, The New England journal of medicine.

[26]  R. Bennett,et al.  Staphylococcus aureus Growth and Toxin Production in Nitrogen-Packed Sandwiches 1. , 1982, Journal of food protection.

[27]  R. Stier,et al.  Effect of Modified Atmosphere Storage on C. Botulinum Toxigenesis and the Spoilage Microflora of Salmon Fillets , 1981 .

[28]  R. Nickelson,et al.  SHELF‐LIFE STUDIES ON CARBON DIOXIDE PACKAGED FINFISt FROM THE GULF OF MEXICO , 1980 .

[29]  B. Spruce,et al.  MODIFIED ATMOSPHERE STORAGE OF ROCKFISH (Sebastes miniatus) AND SILVER SALMON (Oncorhynchus kisutch) , 1980 .

[30]  Göran Molin,et al.  Effect of Packaging under Carbon Dioxide, Nitrogen or Air on the Microbial Flora of Pork Stored at 4°C , 1979 .

[31]  S. Enfors,et al.  Effect of packaging under carbon dioxide, nitrogen or air on the microbial flora of pork stored at 4 degrees C. , 1979, The Journal of applied bacteriology.

[32]  L. G. Ensminger.  The Association of Official Analytical Chemists , 1976 .

[33]  A. Linton,et al.  Changing patterns of Salmonella excretion in various cattle populations , 1972, Veterinary Record.

[34]  W. J. Dyer,et al.  A rapid method of total lipid extraction and purification. , 1959, Canadian journal of biochemistry and physiology.