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8.3 The Digestion of a Wilted Silage made with and without an Additive

Published online by Cambridge University Press:  27 February 2018

M. A. Overend  and
D. G. Armstrong
M. A. Overend
Affiliation:
Department of Agricultural Biochemistry and Nutrition, University of Newcastle-upon-Tyne, NE1 7RU
D. G. Armstrong
Affiliation:
Department of Agricultural Biochemistry and Nutrition, University of Newcastle-upon-Tyne, NE1 7RU
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Extract

It has been shown by Beever, Thomson, Cammell and Harrison (1977) that formaldehyde treatment of silage increased amino acid absorption from the small intestine of sheep by 13% and increased the amount of food protein passing through the rumen undegraded by 66% compared to sheep receiving untreated silage. This paper details the digestion of N and apparent uptake of N, non-ammonia N and amino acid N from the small intestine of Jersey cattle fed a silage made from a second growth, mixed S24 perennial ryegrass/red clover sward which was wilted for 24h and then ensiled either without an additive or with a 50/50 mixture of formic acid and formaldehyde (formalin), each at the rate of 2.2 litres/tonne of grass ensiled. The method of ensiling was by use of an Eberhardt Silopresse (Benedict Agricultural Ltd., London). Each of the three cows fed each diet was equipped with a rumen fistula and re-entrant cannulae into the proximal duodenum and terminal ileum.

Type
8. Theatre Presentations II
Information
BSAP Occasional Publication , Volume 6: Forage Protein in Ruminant Animal Production , 1982 , pp. 162 - 163
Copyright
Copyright © British Society of Animal Production 1982

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References

Beever, D. G., Thomson, D. J., Cammell, S. B. and Harrison, D. G. 1977. The digestion by sheep of silages made with and without the addition of formaldehyde. J. agric. Sci., Camb. 88: 61–70.CrossRefGoogle Scholar
Elliott, R. 1977. A technique for determining the proportion of dietary protein escaping degradation in the rumen of sheep using 35S labelled cyst(e)ine as a marker. Newsletter on Application of Nuclear Methods in Biology and Agriculture, No. 5, 6–7. Ass. Euratom-ITAL, P.O. Box 48, Wageningen, Netherlands.Google Scholar