Effect of fermented soya beans on diarrhoea and feed efficiency in weaned piglets

J.L. Kiers, J.C. Meijer, M.J.R. Nout, F.M. Rombouts, M.J.A. Nabuurs, J. van der Meulen

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94 Citations (Scopus)


Aims: To evaluate anti-diarrhoeal and growth enhancing properties of fermented soya beans in weaned piglets. Methods and Results: In a first phase piglet diet, toasted full-fat soya beans (20%) were replaced with either cooked soya beans or Rhizopus microsporus or Bacillus subtilis fermented soya beans. The effect on the incidence, severity and duration of diarrhoea in enterotoxigenic Escherichia coli (ETEC)-challenged weaned piglets was determined (pen trial, 24 piglets per treatment). Severity of diarrhoea was significantly less on the diet with Rhizopus -fermented soya beans compared with the control diet containing toasted soya beans. Piglets fed fermented soya beans showed increased feed intake (13 and 12%), average daily weight gain (18 and 21%) and feed efficiency (3 and 8%) (for Rhizopus and Bacillus -fermented soya beans, respectively). However, in the treatment groups an unequal mortality and a potential unequal distribution of receptor-positive piglets were observed. Conclusions: Cooked and fermented soya beans could be beneficial in the control of diarrhoea in ETEC-challenged weaned piglets (particularly Rhizopus fermented) and significantly improved weight gain and feed intake (particularly Bacillus fermented). Significance and Impact of the Study: Fermented soya beans could offer benefits with respect to the control of diarrhoea and feed efficiency in piglets.
Original languageEnglish
Pages (from-to)545-552
JournalJournal of Applied Microbiology
Issue number3
Publication statusPublished - 2003


  • in-vitro digestibility
  • post-weaning diarrhea
  • escherichia-coli
  • nutritive-value
  • rhizopus-oligosporus
  • tempe fermentation
  • aspergillus-oryzae
  • soybeans
  • animals
  • food


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