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A review on development of novel strategies for controlling Salmonella Enteritidis colonization in laying hens: Fiber-based molt diets.
MedLine Citation:
PMID:  23300320     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Limiting Salmonella Enteritidis from table eggs can involve intervention approaches at several levels of the production cycle, beginning at the hatchery and ending at the processing or table egg production facilities. Likewise, interventions that limit Salmonella Enteritidis dissemination can be implemented at various stages during the life cycle of infection of Salmonella in the laying hen. However, achieving complete elimination of Salmonella infestation in egg products has remained elusive. There is a multitude of reasons for this, including adaptability of the organism, virulence properties, and persistence. Likewise, environmental factors in the layer house such as transmission routes, reservoirs, and feed sources can influence the exposure of susceptible laying hens to Salmonella Enteritidis. Consequently, successful applications of control measures depend not only on the timing of when they are applied but also on effective surveillance to detect frequency and level of infection of Salmonella. Several studies demonstrated that molt induction by feed withdrawal altered the immune system and the gastrointestinal tract of hens, making them susceptible to Salmonella Enteritidis colonization of the gastrointestinal tract. To alleviate this, the development of alternative methods to induce a molt became necessary. The use of several fiber-containing diets was shown to effectively induce a molt with alfalfa-based diets being the most extensively studied. Further reduction of Salmonella Enteritidis levels in eggs will probably require application of multiple interventions at several steps during egg production and processing as well as a better understanding of the mechanisms used by Salmonella Enteritidis to persist in laying flocks.
Authors:
S C Ricke; C S Dunkley; J A Durant
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Poultry science     Volume:  92     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  502-25     Citation Subset:  IM    
Affiliation:
Center for Food Safety and Department of Food Science, University of Arkansas, 2650 N. Young Ave., Fayetteville 72704;
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