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Gamma radiation in the preparation of maize silage for studies on the aerobic deterioration process

Published online by Cambridge University Press:  27 March 2009

M. K. Woolford
M. K. Woolford
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berkshire, SL6 5LR
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Summary

Maize silage was exposed to doses of y radiation varying from 0 to 6 Mrad inclusive and the effects of this treatment on the microflora and possible changes it might impose on the chemical composition were monitored. The highest dose was required to reduce the native population of micro-organisms to an insignificant level and only minor losses of lactic acid and ethanol were sustained. In addition, the irradiated silage was inoculated with representatives of groups of micro-organisms implicated in the aerobic deterioration of silage and the subsequent changes upon exposure to air observed. The inoculum proliferated and induced losses of fermentation acids, water-soluble carbohydrates, dry matter and, to a minor degree, neutral detergent fibre, and resulted in an increase in temperature and total nitrogen, the factors most likely to change during aerobic deterioration. Only the 6 Mrad dose yielded material suitable for investigations into the identification of those organisms primarily responsible for aerobic deterioration.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 3 , December 1983 , pp. 711 - 716
Copyright
Copyright © Cambridge University Press 1983

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