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A study of the ‘dissolved faeces fraction’ method for the indirect estimation of herbage intake

Published online by Cambridge University Press:  27 March 2009

J. P. Langlands
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen
J. L. Corbett
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen

Extract

1. Samples of faeces obtained from eleven continuous digestibility trials in which sheep, steers or cows were given fresh herbages grown in different seasons in 2 years were analysed for the ‘dissolved faeces fraction’ (D.I-.F.).

2. Dry-matter intake by sheep was linearly related to the weight of D.F.F. excreted and the equation predicted intakes that were 20 %higher at the mean intake than those estimated from a similar type of relationship obtained by Owen (1961). A logarithmic relationship was derived when the observations for all species were combined.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1964

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References

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