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Increasing digesta viscosity may increase parasite establishment in the small intestine of sheep

Bath-Jacobson, C.L., Pluske, J.R., Bell, K., Besier, R.B. and Pethick, D.W. (2005) Increasing digesta viscosity may increase parasite establishment in the small intestine of sheep. In: 6th International Sheep Veterinary Congress, 17 - 21 June, Crete, Greece.

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    Abstract

    Strongyle infections and diarrhoea are major problems for the sheep industry, but the nutritional factors determining faecal consistency and susceptibility to enteric diseases are not well understood. Soluble non-starch polysaccharides (sNSP) have been shown to affect the physico-chemical environment of the gut lumen, by increasing viscosity of digesta and affecting microbial fermentation in the large intestine; however, the role of sNSP in sheep has not been studied. sNSP have been shown to increase parasite establishment in the small intestine of mice (3) and decrease parasite establishment in the large intestine of pigs (2). Carboxymethylcellulose (CMC) is a non-fermentable viscous-forming agent that is used to study the effect of soluble NSP in increasing digesta viscosity independent of potential effects on fermentation (I). The aims of this study were to investigate whether increasing viscosity of digesta using CMC may affect establishment of Trichostrongylus colubriformis and Telodorsagio (Ostenagia) circumcincta in sheep and whether the type of roughage and CMC may affect faecal consistency in sheep with strongyle infections.

    Publication Type: Conference Paper
    Murdoch Affiliation: School of Veterinary and Biomedical Sciences
    URI: http://researchrepository.murdoch.edu.au/id/eprint/9587
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