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9.4 Voluntary Intake in Ruminants Affected by Silage Extracts and Amines in Particular

Published online by Cambridge University Press:  27 February 2018

J. G. Buchanan-Smith
J. G. Buchanan-Smith*
Affiliation:
Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G/2W1
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Extract

Gamma amino butyric acid (GABA) is a food intake depressant (Morley, 1980) and is quantitatively a significant nitrogenous constituent in silage (Oshima and McDonald, 1978). When maize silage extracts were infused into the rumen of sheep, it was shown that short-term feed intake could be depressed but this effect was attributed to high rumen osmolality (Phillip, Buchanan-Smith and Grovum, 1981) The purpose of the present experiments was to determine whether GABA and low dry matter lucerne silage extracts could depress food intake in sheep.

Type
9. Poster Presentations
Information
BSAP Occasional Publication , Volume 6: Forage Protein in Ruminant Animal Production , 1982 , pp. 180 - 182
Copyright
Copyright © British Society of Animal Production 1982

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References

Morley, J. E. 1980. The neuroendocrine control of appetite: the role of the endogenous opiates, cholecystokinin, TRH, gamma amino butyric acid and the diazepam receptor. Life Sciences 27: 355–368.Google Scholar
Oshima, M. and McDonald, P. 1978. A review of the changes in nitrogenous compounds of herbage during ensilage. J. Sci. Fd and Agric. 29: 497–505.Google Scholar
Phillip, L. E., Buchanan-Smith, J. G. and Grovum, W. L. 1981. Food intake and ruminai osmolality in sheep: differentiation of the effect of osmolality from that of the products of maize silage fermentation. J. agric. Sci., Camb. 96: 439–445.CrossRefGoogle Scholar