351. Case-control study of an outbreak of clinical disease attributable to Salmonella menhaden infection in eight dairy herds.
- Author
-
Anderson RJ, Walker RL, Hird DW, and Blanchard PC
- Subjects
- Animal Feed adverse effects, Animal Feed microbiology, Animals, California epidemiology, Case-Control Studies, Cattle, Cattle Diseases etiology, Diarrhea epidemiology, Diarrhea etiology, Dietary Fats adverse effects, Female, Food Microbiology, Male, Risk Factors, Salmonella Infections, Animal etiology, Surveys and Questionnaires, Cattle Diseases epidemiology, Diarrhea veterinary, Disease Outbreaks veterinary, Salmonella Infections, Animal epidemiology
- Abstract
Objective: To identify risk factors associated with Salmonella menhaden associated disease in adult dairy cows during an outbreak in California., Design: Case-control study., Sample Population: 8 case dairies that had > or = 1 adult animal that had clinical signs of salmonellosis and from which S menhaden was isolated and 22 control dairies, 16 of which were matched on the basis of herd size and county and 6 of which were matched on the basis of herd size, county, and breed (Jersey)., Procedure: A questionnaire was developed and reviewed with the herdsman or owner of each dairy. Primary areas of concern were herd management, disease characteristics, and feed-related information., Results: Use of 1 particular feed mill and feeding animal fat were significant risk factors for clinical disease attributable to S menhaden infection., Clinical Implications: Feed should not be overlooked as a potential source of Salmonella organisms in dairy herds.
- Published
- 1997