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Studies on forage cell walls: 5. Alkali-treated lucerne

Published online by Cambridge University Press:  27 March 2009

M. G. Mathews
Affiliation:
School of Wool and Pastoral Sciences, The University of New South Wales, Kensington, N.S.W. 2033, Australia
W. R. McManus
Affiliation:
School of Wool and Pastoral Sciences, The University of New South Wales, Kensington, N.S.W. 2033, Australia

Summary

Ground lucerne was treated with different concentrations of sodium hydroxide (NaOH) and potassium hydroxide (KOH) in a ‘dry crystal’ process, prior to pelleting.

Data for feed characteristics and related utilization by sheep fed these diets are reported. NaOH and KOH had effects of different magnitude on the digestibility of cell-wall constituents (CWC). An increase of nitrogen (N) in the cell wall (CWN) induced by tha alkali treatments, resulted in depressed nitrogen digestibility. The residual alkali and high electrolyte intakes produced higher rumen pH, but values were more stable than for sheep fed the control diet.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1976

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