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A note on the effect of different amounts of NaOH application on digestibility by cattle of barley, oats, wheat and maize

Published online by Cambridge University Press:  27 March 2009

E. R. Ørskov ,
B. J. Barnes  and
B. A. Lukins
E. R. Ørskov
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
B. J. Barnes
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
B. A. Lukins
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
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Summary

The effect of different amounts of NaOH sprayed on whole grain on their digestibility by cattle was examined for barley, oats, maize and wheat. For all cereals the digestibility of fibre, dry matter and organic matter (OM) increased with increasing application of NaOH solution but responses were small at the highest levels used. The digestibility of OM was increased from 61 to 83% for barley, from 61 to 76% for oats, from 83 to 89% for maize and from 79 to 92% for wheat. The optimum amount of NaOH required differed between cereals, being about 3·0–3·5% for barley, 4·5–5·0% for oats, and 2·5–3·0% for maize and wheats. With oats, wheat and maize the digestibility was apparently increased more with NaOH treatment than by physical processing.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 94 , Issue 2 , April 1980 , pp. 271 - 273
Copyright
Copyright © Cambridge University Press 1980

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