Animals In Print
The On-Line Newsletter
From 8 October 2001 Issue
Poultry Management and Behavior:
Salmonellosis in Broiler Breeder Flocks
148 Multivariate epidemiological approach to salmonellosis in broiler breeder flocks.
Abstract: A retrospective, case-control study into risk factors of salmonellosis was undertaken using data from 111 broiler breeder flocks assembled during a 5-yr period. The results of both univariate and multivariate analyses are presented. Many different Salmonella species were detected. Multivariate models were created based on the outcome of univariate analyses. The following variables appeared to be the most relevant: disinfection tubs, hygiene barriers, the interaction of disinfection tubs by hygiene barriers, and feed mills. The final model indicated that flocks housed at farms without a disinfection tub, with poor hygiene barriers, and receiving their feed from a small feed mill had a 46.1 times greater risk of being Salmonella-positive than flocks housed at farms with a disinfection tub, with good hygiene barriers, and receiving their feed from a large feed mill. It is concluded that the application of quantitative epidemiological methods can be valuable not only to identify potential risk factors but also to quantify their contributory effect on the disease outcome. Hence, it may be a useful tool for application in "integrated food chain quality control.
148) NAL Call. No.: 47.8 AM33P Multivariate epidemiological approach to salmonellosis in broiler breeder flocks. Henken, A.M.; Frankena, K.; Goelema, J.O.; Graat, E.A.M.; Noordhuizen, J.P.T.M. Champaign, Ill. : Poultry Science Association; 1992 May. Poultry science v. 71 (5): p. 838-843; 1992 May. Includes references.SOURCE: http://www.nal.usda.gov/awic/pubs/oldbib/qb9505.htm Go on to next part | Return to Animals in Print 8 Oct 2001 Issue
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