Evaluation of large-intestinal parameters associated with dietary treatments designed to reduce the occurrence of swine dysentery

Z. Durmic; D.W. Pethick; B.P. Mullan; J.M. Accioly; H. Schulze; D.J. Hampson

doi:10.1079/BJNBJN2002607

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Evaluation of large-intestinal parameters associated with dietary treatments designed to reduce the occurrence of swine dysentery

Journal article

Open access

Peer reviewed

Evaluation of large-intestinal parameters associated with dietary treatments designed to reduce the occurrence of swine dysentery

Z. Durmic, D.W. Pethick, B.P. Mullan, J.M. Accioly, H. Schulze and D.J. Hampson

British Journal of Nutrition, Vol.88(2), pp.159-169

2002

DOI: https://doi.org/10.1079/BJNBJN2002607

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Abstract

Diets containing soluble NSP (sNSP) and resistant (RS) increase hindgut fermentation in pigs, which in turn increases the incidence of swine dysentery (SD) after infection with the intestinal spirochaete Brachyspira hyodysenteriae. In the present study pigs were fed diets based on either wheat or sorghum, fed either raw or treated by extrusion, and/or with the addition of dietary enzymes to reduce RS and/or sNSP content. The aim was to determine the effects of these treatments on pig performance, large intestinal fermentation and expression of SD. Weaned pigs (n 132) were fed experimental diets for 4 weeks, when half the pigs in each treatment group were euthanased and samples collected to assess the influence of the diet on hindgut fermentation. The remaining pigs then were infected with B. hyodysenteriae, and monitored for development of SD. In general, compared with pigs fed raw wheat, fermentation in all parts of the large intestine was reduced either by feeding raw sorghum-based diets, or by feeding diets that were extruded. The addition of enzymes that degrade RS or sNSP reduced fermentation only in the distal parts of the large intestine. The incidence of SD was lower in pigs fed sorghum-based diets, and some of the extruded diets, but none of the dietary treatments offered full protection against SD. Multiple regression analysis of the results from all three experiments showed that colonisation by spirochaetes was highly related to dietary sNSP concentrations, whilst development of SD was similarly influenced by RS content of the diet.

Details

Title: Evaluation of large-intestinal parameters associated with dietary treatments designed to reduce the occurrence of swine dysentery
Authors/Creators: Z. Durmic (Author/Creator)
D.W. Pethick (Author/Creator)
B.P. Mullan (Author/Creator)
J.M. Accioly (Author/Creator)
H. Schulze (Author/Creator)
D.J. Hampson (Author/Creator)
Publication Details: British Journal of Nutrition, Vol.88(2), pp.159-169
Publisher: Cambridge University Press
Identifiers: 991005541186007891
Copyright: © The Authors 2002
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 1 Clinical & Life Sciences; 1.248 Sexually Transmitted Infections; 1.248.2445 Lawsonia Intracellularis
Web Of Science research areas: Nutrition & Dietetics
ESI research areas: Agricultural Sciences