Effects of dietary protein level and zinc oxide supplementation on the incidence of post-weaning diarrhoea in weaner pigs challenged with an enterotoxigenic strain of Escherichia coli

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • J.M. Heo
  • J.C. Kim
  • C.F. Hansen
  • B.P. Mullan
  • H. Maribo
  • N. Kjeldsen
  • J.R. Pluske

Detail(s)

Original languageEnglish
Pages (from-to)210-213
Journal / PublicationLivestock Science
Volume133
Issue number1-3
Online published10 Jul 2010
Publication statusPublished - Sept 2010
Externally publishedYes

Abstract

The interactive effects of dietary protein level, zinc oxide (ZnO) supplementation and experimental infection with enterotoxigenic E. coli (ETEC) on the incidence of post-weaning diarrhoea (PWD) and indices of protein fermentation were examined. Ninety-six, individually housed 21-day-old pigs were used in a split plot experiment, with the whole plot being challenge or no challenge with ETEC and the dietary treatments used as subplots and arranged in a completely randomised 2×2 factorial design, with the factors being (i) 2 dietary protein levels [251g/kg (high) vs. 192g/kg (low) crude protein] and (ii) addition or no addition of 2500ppm ZnO. Between days 1 and 14 after weaning, ETEC infection increased faecal consistency (FC; looser faeces) but only in pigs fed the high protein diet (P<0.05) or without ZnO (P<0.1). Pigs fed a high protein diet without ZnO showed more loose faeces (higher FC) compared to pigs fed either a high protein diet with ZnO supplementation or pigs fed lower protein diets without and with ZnO supplementation (P<0.05). Feeding either a low protein diet or ZnO decreased (P<0.05) PWD. Feeding a low protein diet decreased (P<0.001) plasma urea nitrogen (PUN) and faecal NH3-N contents. There were no 2- or 3-way interactions (P>0.05) between the independent variables for PWD, PUN and faecal NH3-N. The results indicate that feeding a low protein diet supplemented with amino acids or adding ZnO to either low or high protein diets could be used as dietary strategies to reduce PWD in piglets.

Research Area(s)

  • E. coli, Post-weaning diarrhoea, Protein, Zinc oxide

Citation Format(s)

Effects of dietary protein level and zinc oxide supplementation on the incidence of post-weaning diarrhoea in weaner pigs challenged with an enterotoxigenic strain of Escherichia coli. / Heo, J.M.; Kim, J.C.; Hansen, C.F. et al.
In: Livestock Science, Vol. 133, No. 1-3, 09.2010, p. 210-213.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review