Soybean meal-induced enteritis in Atlantic salmon (Salmo salar L.) at different temperatures

P. Urán, J.W. Schrama, J.H.W.M. Rombout, A. Obach, L. Jensen, W. Koppe, J.A.J. Verreth

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Abstract

This study evaluates the effect of temperature on the development of intestinal disorders when Atlantic salmon are fed soybean meal (SBM). In this study 20% of the dietary fishmeal was replaced by solvent-extracted Hipro SBM. Atlantic salmon reared at two different water temperatures (8¿°C and 12¿°C), were fed a control diet and an experimental diet for 20¿days. Samples were taken at days 7 and 20. The extent of the morphological changes was assessed using a semi-quantitative scoring system developed for this purpose. The study demonstrates that enteritis is affected by temperature. The intestinal disorders were more severe in fish reared at 12¿°C compared with those reared at 8¿°C. It can be concluded from this study that temperature changes the speed but not the type of SBM-induced enteritis expressed as a delay on the response when Atlantic salmon are kept at lower temperatures.
Original languageEnglish
Pages (from-to)324-330
JournalAquaculture Nutrition
Volume14
Issue number4
DOIs
Publication statusPublished - 2008

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Keywords

  • trout oncorhynchus-mykiss
  • nonspecific defense-mechanisms
  • rainbow-trout
  • distal intestine
  • granule cells
  • fish
  • transport
  • responses
  • protein
  • epithelium

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