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Reduction of subclinical Salmonella infection in fattening pigs after dietary supplementation with a ß-galactomannan oligosaccharide

AuthorsAndrés, Sara; Vico, Juan P.; Grilló, María Jesús ; Mainar-Jaime, Raúl C.
Mannan oligosaccharides
Food safety
Pulsed-field gel electrophoresis
Issue DateFeb-2015
PublisherJohn Wiley & Sons
CitationJournal of Applied Microbiology 118(2): 284-294 (2015)
AbstractAims: To assess the efficacy of a b-galactomannan oligosaccharide (ß-GMOS)for the control of Salmonella infection in fattening pigs.Methods and Results: Three different doses (05, 3 and 2 kg ß-GMOS per tonof feed) were used during the entire period of growing in three similar andindependent field trials carried out in a small fattening unit (100 pigs).Treatment was randomly assigned to half of the pens. Individual serumsamples (20–25 per group) were collected at different times during thefattening period and a similar number of faecal samples during the fatteningperiod and at slaughter. In addition, mesenteric lymph nodes were collected atslaughter. HerdcheckâSwine Salmonella ELISA was used for serologicalanalyses, the ISO 6579:2002/Amd 1 : 2007 for bacteriology and the PFGE formolecular characterization of Salmonella strains. The addition of ≥2kgt1ofß-GMOS to the pig diet during the entire fattening period was associated witha reduction in Salmonella prevalence, shedding and seroconversion.Conclusions: Feed supplementation with ß-GMOS may be a usefulcomplementary tool for the control of salmonellosis in fattening pigs.Significance and Impact of the Study: ß-GMOS may be a complementary wayof reducing Salmonella shedding and infection in fattening pigs.
Publisher version (URL)http://dx.doi.org/10.1111/jam.12713
Appears in Collections:(IDAB) Artículos
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