Effect of fermented feed on Enterobacteriaceae and lactobacilli population of the gastrointestinal tract of pigs
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The SafePork conference series began in 1996 to bring together international researchers, industry, and government agencies to discuss current Salmonella research and identify research needs pertaining to both pig and pork production. In subsequent years topics of research presented at these conferences expanded to include other chemical and biological hazards to pig and pork production.
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Abstract
Fermented feed contains high amounts of lactic acid and high numbers of lactobacilli. In a pig experiment the influence on the microbial population lactobacilli and Enterbacteriaceae in the gastrointestinal tract of the pig, by fermented feed was investigated. The numbers of Enterobacteriaceae in the contents of the stomach, ileum, caecum, colon, and rectum of pigs fed with fermented feed were significantly lower compared with the contents of the stomach, ileum, caecum, colon and rectum of pigs fed with dry feed. The numbers of total lactobacilli were significantly higher in the stomach contents of pigs fed fermented feed and in the ileum contents of one pig group fed fermented feed compared with the contents of pigs fed with dry feed. However, the influence of lactobacilli on Enterobacteriaceae could not be demonstrated. It was concluded that feeding fermented feed influences the bacterial ecology of the gastrointestinal tract and reduces the levels of Enterobacteriaceae in the different parts of the gastrointestinal tract.