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Concentrates saved by ammonia-treating barley straw for over-wintering Hereford x Friesian heifers

Published online by Cambridge University Press:  22 November 2017

E. Owen
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading, Berks, RG6 2AT
D. Kitivo
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading, Berks, RG6 2AT
M. Russell
Affiliation:
Department of Agriculture and Horticulture, University of Reading, Earley Gate, Reading, Berks, RG6 2AT
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Extract

Ammonia treatment of straw to improve its nutritive value has been widely investigated (Sundstføl and Coxworth, 1984) and techniques are now being applied commercially in many countries. Despite much research, there is a lack of experimental data collected under farm-scale conditions to demonstrate that ammoniating straw is worthwhile under United Kingdom conditions. Experiment 1 in the present study was a farm-scale trial and aimed to over-winter beef cattle at a growth rate of 0.55 kg/day, using concentrate supplements and untreated or ammonia-treated barley straw. Experiment 2 aimed to define the digestibility and intake of the straws, using wether sheep.

Type
Nutrition
Copyright
Copyright © The British Society of Animal Production 1984

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References

Sunstøl, F. and Coxworth, E.M. 1984. Chapter 7 : Ammonia treatment. In Straw and Other Fibrous By-products as Feed (ed. Sundstø1, F. and Owen, E.). Elsevier Science Publishers. (In Press).Google Scholar