Wheat and barley differently affect porcine intestinal microbiota

Eva Weiss, Tobias Aumiller, Hanns K Spindler, Pia Rosenfelder, Meike Eklund, Maren Witzig, Henry Johs. Høgh Jørgensen, Knud Erik Bach Knudsen, Rainer Mosenthin

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Abstract

Diet influences the porcine intestinal microbial ecosystem. Barrows were fitted with ileal T-cannulas to compare short-term effects of eight different wheat or barley genotypes and period-to-period effects on seven bacterial groups in ileal digesta and faeces by qPCR.

Within genotypes of wheat and barley, there was no difference (P > 0.05) in contents of analysed NSP, yet cereal types differed (P < 0.001) except for soluble arabinoxylans. Genotypes showed no effect on bacterial gene copy numbers. In ileal digesta of barley- compared to wheat-fed pigs, log10 copy numbers were lower (P < 0.05) for total eubacteria (9.6–9.8), Bacteroides–Prevotella–Porphyromonas (6.5–6.8), Clostridium cluster IV (6.7–6.9), and Roseburia spp. (6.6–7.2), while higher copy numbers were found for Lactobacillus spp. (9.4–8.8). Enterobacteriaceae (7.0–7.8) and Bifidobacterium spp. (7.0–7.7) were lower (P < 0.001) in faeces of barley compared to wheat-fed pigs. Ileal eubacteria, Clostridium cluster IV and Roseburia spp. linearly increased from period 1 to 8 for both cereals (P < 0.05).

Wheat and barley differently influence microbial composition particularly in the small intestine, with barley increasing the Lactobacillus spp.:Enterobacteriaceae ratio, underlining its potential to beneficially manipulate the intestinal microbial ecosystem.

OriginalsprogEngelsk
TidsskriftJournal of the Science of Food and Agriculture
Vol/bind96
Nummer6
Sider (fra-til)2230-2239
ISSN0022-5142
DOI
StatusUdgivet - apr. 2016

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