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Fermented liquid feed reduces susceptibility of broilers for Salmonella enteritidis
L Heres1, B Engel, F van Knapen
1Institute for Animal Science and Health, Department of Infectious Diseases and Food Chain Quality, Lelystad, The Netherlands. l.heres@id.wag-ur.nl
Poultry Science
|April 25, 2003
Summary
Fermented liquid feed (FLF) reduces Salmonella infection in chickens by making them less susceptible. This probiotic feed may be a new strategy to control Salmonella in poultry flocks.
Area of Science:
- Animal Science
- Microbiology
- Food Safety
Background:
- Salmonella contamination in poultry meat is a significant public health concern, leading to human salmonellosis.
- Fermented feed, rich in lactobacilli and lactic acid, may enhance chicken resistance to Salmonella colonization.
Purpose of the Study:
- To quantify the impact of fermented liquid feed (FLF) on broiler chickens' susceptibility to Salmonella enteritidis (SE).
Main Methods:
- Broiler chickens were fed either standard dry feed or FLF, prepared with Lactobacillus plantarum.
- Chickens were inoculated with varying doses of Salmonella enteritidis (SE).
- SE colonization was assessed via cloacal swabs and quantitative caecal cultures.
Main Results:
- FLF-fed chickens showed a reduced proportion of SE-shedding compared to controls.
- FLF-fed chickens required a longer time or higher SE dose to achieve similar infection rates.
- No significant difference in the level of caecal Salmonella colonization was observed at the study's end.
Conclusions:
- Fermented liquid feed (FLF) can decrease broiler susceptibility to Salmonella infection.
- FLF presents a potential new strategy for controlling Salmonella in chicken flocks.