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Fructans from Renga Renga Lily (Arthropodium cirratum) Extract and Frutafit as Prebiotics for Broilers: Their Effects on Growth Performance and Nutrient Digestibility

  • Vidanarachchi, J.K. (Department of Animal Science, University of Peradeniya) ;
  • Iji, P.A. (School of Environmental and Rural Science, University of New England) ;
  • Mikkelsen, L.L. (School of Environmental and Rural Science, University of New England) ;
  • Choct, M. (School of Environmental and Rural Science, University of New England)
  • 투고 : 2009.02.02
  • 심사 : 2009.06.04
  • 발행 : 2010.05.01

초록

An experiment was conducted to evaluate the effect of dietary water-soluble carbohydrate extract from Renga renga lily (Arthropodium cirratum) and a commercial product, $Frutafit^{{\circledR}}$ (both fructans) on the performance, organ weights, ileal digestibility and gut morphology of male Cobb broiler chickens. There were six treatment groups: a negative control with no supplements, a positive control supplemented with 45 ppm Zn-bacitracin, and four test diets each supplemented with Renga renga lily extract or Frutafit at 5 or 10 g/kg diet. Supplementation with low levels of Renga renga lily extract and Frutafit in the diet did not affect productive parameters, whereas the inclusion of a high level of Frutafit had a negative effect on BWG and FI compared with birds fed the negative control diet. The addition of an antibiotic to the diet significantly improved (p<0.05) the BWG and FCR of broilers. Apparent ileal digestibility of dry matter, starch, protein and fat was not affected (p>0.05) by supplementation with both levels of lily extract and the low level of Frutafit. The apparent ileal digestibility of dry matter, protein and fat was decreased (p<0.05) by the high level of Frutafit. The apparent metabolisable energy (AME) of the diets fed the high level of Frutafit was approximately 0.2 MJ/kg DM lower than that of the negative control group. The addition of Zn-bacitracin increased (p<0.05) the apparent ileal digestibility of fat. The relative weight of the liver was higher (p<0.05) in broilers supplemented with the high level of Frutafit than for negative control birds at 14 and 35 d of age. Feeding Renga renga lily extract or Frutafit had no effect on the gut morphology of birds on d 14 and 35. It can be concluded that dietary inclusion of fructans from the two sources used in this study affected broiler performance differently and in a dose-dependent manner.

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피인용 문헌

  1. Effect of some plant extracts on growth performance, intestinal morphology, microflora composition and activity in broiler chickens vol.50, pp.9, 2010, https://doi.org/10.1071/AN10011
  2. Gut barrier function: Effects of (antibiotic) growth promoters on key barrier components and associations with growth performance vol.97, pp.5, 2018, https://doi.org/10.3382/ps/pey021