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Measurement of caecal outflow rate in ponies using Chromium mordanted feeds

Published online by Cambridge University Press:  20 November 2017

J. J. Hyslop ,
B.M.L. McLean ,
M. J. S. Moore-Colyer ,
A. C. Longland ,
D. Cuddeford  and
T. Hollands
J. J. Hyslop
Affiliation:
University of Edinburgh, Dept of Vet Clinical Studies, Easter Bush, Roslin, Midlothian EH25 9RG, UK
B.M.L. McLean
Affiliation:
University of Edinburgh, Dept of Vet Clinical Studies, Easter Bush, Roslin, Midlothian EH25 9RG, UK
M. J. S. Moore-Colyer
Affiliation:
Welsh Institute of Rural Studies, Llanbadarn Fawr, UWA, Aberystwyth, SY23 5EE, UK
A. C. Longland
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, SY23 3EB, UK
D. Cuddeford
Affiliation:
University of Edinburgh, Dept of Vet Clinical Studies, Easter Bush, Roslin, Midlothian EH25 9RG, UK
T. Hollands
Affiliation:
Dodson & Horrell Ltd, Ringstead, Kettering, Northamptonshire, NN14 4BX, UK
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Extract

Estimates of digesta passage through specific segments of the alimentary tract are a vital component of modelling approaches which attempt to quantitatively partition digestive processes in equines. This study reports results from three studies where digesta passage of Chromium (Cr) mordanted feeds was determined in the caecum of ponies.

Caecal outflow rates were determined during three in vivo apparent digestibility studies conducted using three caecally-fistulated ponies as described by Moore-Colyer et al, (1999) for studies 1 and 2; and McLean et al, (1999) for study 3. Pony basal diets consisted of unmolassed sugar beet pulp (USBP), hay cubes (HC) or a 2:1 mix of oat hulls:naked oats (OHNO) in study 1; a 1:1 mix of USBP:HC (USHC) in study 2 and either 100% HC or one of 3 diets consisting of a 1:1 HC:barley mix where the barley was either rolled (RBHC), micronised (MBHC) or extruded (EBHC) in study 3.

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Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 141
Copyright
Copyright © The British Society of Animal Science 1999

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References

McLean, B.M.L., Hyslop, J.J., Longland, A.C., Cuddeford, D. and Hollands, T. 1999. In vivo apparent digestibilitiy in ponies given rolled, micronised or extruded barley. Proc. BSAS Winter Meeting.CrossRefGoogle Scholar
Moore-Colyer, M.J.S, Hyslop, J.J, Longland, A.C. and Cuddeford, D. 1999. In vivo apparent digestibility of proximate constituents and non-starch polysaccharides in ponies offered botanically diverse fibre based diets. Proc. BSAS Winter Meeting.Google Scholar