Addition of oat hulls to an extruded rice-based diet for weaner pigs ameliorates the incidence of diarrhoea and reduces indices of protein fermentation in the gastrointestinal tract

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

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1217-1225
Journal / PublicationBritish Journal of Nutrition
Volume99
Issue number6
Online published28 Nov 2007
Publication statusPublished - Jul 2008
Externally publishedYes

Abstract

An experiment was conducted to determine whether adding oat hulls to weaner pig diets based on extruded rice or unprocessed wheat influenced post-weaning diarrhoea (PWD) and protein fermentation in the large intestine. Ninety-six male piglets (5·16 (sem 0·08) kg) were allocated to (i) extruded rice plus animal proteins (RAP); (ii) RAP with added oat hulls (20 g/kg); (iii) wheat plus animal proteins (WAP); (iv) WAP with added oat hulls (20 g/kg). Blood and faecal samples were collected on days 7 and 14 after weaning at about age 21 d. Pigs fed RAP had more PWD than pigs fed WAP (P < 0·05). Oat hull supplementation to diet RAP decreased the incidence of PWD (P < 0·05). The total-tract digestibility of DM, starch and energy was higher in rice-based diets than in wheat-based diets (P < 0·001); however, oat hulls decreased digestibility of DM and gross energy (P < 0·001). Pigs fed RAP had higher plasma creatinine concentrations (P < 0·01), which were positively correlated to cumulative β-haemolytic Escherichia coli scores after weaning (R 2 0·928; P = 0·015). Addition of oat hulls decreased plasma urea concentrations only in pigs fed RAP (interaction; P < 0·05). Pigs fed RAP had lower faecal total biogenic amine concentrations than pigs fed WAP (P < 0·001). Oat hull supplementation tended to decrease total biogenic amine concentrations (P = 0·103). These data indirectly suggest that a mostly insoluble dietary fibre source such as oat hulls can decrease PWD in dietary situations where there may be a misbalance of carbohydrate to protein entering the hindgut.

Research Area(s)

  • Biogenic amines, Digestibility, Oat hulls, Plasma creatinine, Plasma urea, Post-weaning diarrhoea

Citation Format(s)

Addition of oat hulls to an extruded rice-based diet for weaner pigs ameliorates the incidence of diarrhoea and reduces indices of protein fermentation in the gastrointestinal tract. / Kim, Jae Cheol; Mullan, Bruce P.; Hampson, David J.; Pluske, John R.

In: British Journal of Nutrition, Vol. 99, No. 6, 07.2008, p. 1217-1225.

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