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A note on the effect of Aspergillus oryzae fermentation extract on the rumen fermentation of sheep given straw

Published online by Cambridge University Press:  02 September 2010

M. Fondevila ,
C. J. Newbold ,
P. M. Hotten  and
E. R. Ørskov
M. Fondevila
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
C. J. Newbold
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
P. M. Hotten
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
E. R. Ørskov
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
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Abstract

Eight mature Dorset-cross sheep, each fitted with a permanent rumen cannula, were given a diet of chopped barley straw (plus urea and minerals) either with or without an Aspergillus oryzae (AO) fermentation extract (2 glday). The addition of AO fermentation extract to the diet increased the initial rate of straw degradation (P < 0·05) but did not alter the final extent of degradation. Total culturable bacteria increased with AO treatment but numbers of cellulolytic bacteria, ciliate protozoa, and aerobic fungi, were not significantly altered. Rumen pH, liquid clearance rate, total volatile fatty acids, acetate, propionate, butyrate, L-lactate and ammonia concentrations were also unaffected.

Keywords

Aspergillus oryzaerumen fermentationsheepstraw

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Type
Research Article
Information
Animal Production , Volume 51 , Issue 2 , October 1990 , pp. 422 - 425
Copyright
Copyright © British Society of Animal Science 1990

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References

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