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Some aspects of control of salmonella infection in poultry for minimising contamination in the food chain

Published online by Cambridge University Press:  29 August 2014

W.A. AWAD  and
K. GHAREEB
W.A. AWAD*
Affiliation:
Department for Farm Animals and Veterinary Public Health, Clinic for Poultry and Fish Medicine, University of Veterinary Medicine, Vienna, Austria: Department of Animal Hygiene, Poultry and Environment, and Department of Animal Behaviour and Management, Faculty of Veterinary Medicine, South Valley University, 83523 Qena, Egypt
K. GHAREEB
Affiliation:
Department of Animal Hygiene, Poultry and Environment, and Department of Animal Behaviour and Management, Faculty of Veterinary Medicine, South Valley University, 83523 Qena, Egypt Department for Farm Animals and Veterinary Public Health, Institute of Animal Nutrition and Functional Plant Compounds, University of Veterinary Medicine, Vienna, Austria
*
Corresponding author: wageha.awad@vetmeduni.ac.at
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Abstract

Salmonellosis is one of the most frequent zoonotic diseases in humans and is associated with major public health and economic losses globally. Eggs and poultry meat represent one of the main sources of infection. Chickens are considered as a main carrier for salmonella and infected birds rarely show any clinical signs. The control of salmonella in commercial poultry production is essential because of the economic and public health consequences. Accordingly, the current European approach is based on a farm-to-fork strategy, in which each sector implements measures to minimise or reduce salmonella contamination. Control measures are most effective at the source, i.e. at farm level. Measures to decrease the prevalence of Salmonella enterica in poultry farms are expected to result in a lower incidence of human salmonellosis. The pre-harvest phase involves the use of all available tools, such as vaccination, implementation of biosecurity measures and additional efforts to achieve salmonella-free feed production. Amongst those tools, nutritional approaches can greatly contribute to reduce salmonella shedding and to minimise salmonella during processing, thereby producing safer food. Due to the high number of introductory sources for salmonella to infect a flock, various intervention strategies have to be implemented to minimise risks. Recently, it has been shown that salmonella impacts the gut integrity in chickens, therefore it is important to develop new strategies or combine different strategies to improve gut barrier function and gut health. This review describes certain selected strategies that may be used in farm control programmes in poultry.

Keywords

salmonellacolonisationintestinal barrierfeed contamination
Type
Review Article
Information
World's Poultry Science Journal , Volume 70 , Issue 3 , September 2014 , pp. 519 - 530
Copyright
Copyright © World's Poultry Science Association 2014 

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