Effect ofβ-glucanase and xylanase supplementation of barley- and rye-based diets on caecal microbiota of broiler chickens

Irrespective of the method applied, the results indicate that the cereal type as well as the exogenous enzyme supplementation influence the microbiota in broiler chicken caeca, and may have the effect of reducing potentially pathogenic Enterobacteriaceae populations

D. Józefiak; A. Rutkowski; S. Kaczmarek; B.B. Jensen; R.M. Engberg; O. Højberg

2010

Key concepts

Scholarcy highlights

  • Effect of β -glucanase and xylanase supplementation of barley- and rye-based diets on caecal microbiota of broiler chickens
  • The aim was to investigate the effect of grain type and exogenous enzymes on the composition of chicken caecal microbiota as examined by classical culturing and molecular techniques and terminal-restriction fragment-length polymorphism)
  • As assessed by FISH analysis, the most abundant bacterial groups in the broiler caeca were Clostridium coccoides–Eubacterium rectale followed by Bacteroides sp., Lactobacillus sp./Enterococcus sp., Bifidobacterium sp. and Enterobacteriaceae
  • The enzyme supplementation significantly decreased the relative amount of Enterobacteriaceae
  • The T-RFLP profiles indicated that the caecal microbiota of birds receiving rye-based diets was more diverse than that of birds fed on barley-based diets
  • Irrespective of the method applied, the results indicate that the cereal type as well as the exogenous enzyme supplementation influence the microbiota in broiler chicken caeca, and may have the effect of reducing potentially pathogenic Enterobacteriaceae populations

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