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Evaluation of pasture sampling procedures for the estimation of herbage n-alkanes

Published online by Cambridge University Press:  24 November 2017

S.A. Vulich ,
J.P. Hanrahan  and
E.G. O’Riordan
S.A. Vulich
Affiliation:
Agriculture and Food Development Authority, Belclare, Tuam, Co. Galway, Republic of Ireland
J.P. Hanrahan
Affiliation:
Agriculture and Food Development Authority, Belclare, Tuam, Co. Galway, Republic of Ireland
E.G. O’Riordan
Affiliation:
Agriculture and Food Development Authority, Belclare, Tuam, Co. Galway, Republic of Ireland
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Extract

The assessment of herbage intake using the n-alkane technique requires estimates of the n-alkane concentrations in the diet. The objective of the present study was a) to assess the magnitude of sampling variation in n-alkane concentrations among herbage samples taken from individual oesophageal fistulated wethers, b) compare n-alkane concentrations determined from oesophageal extrusa, hand plucked, and mechanically clipped herbage samples and c) assess the effect of errors in the estimates of herbage n-alkane concentrations on the accuracy of intake estimates.

Type
Sheep
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1992 , March 1992 , pp. 171
Copyright
Copyright © The British Society of Animal Production 1992

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References

Forbes, T.D.A. and Beattie, M.M. 1987. Grass and Forage Sci. 42: 79–84.CrossRefGoogle Scholar
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