Hostname: page-component-77c89778f8-5wvtr Total loading time: 0 Render date: 2024-07-23T09:10:50.290Z Has data issue: false hasContentIssue false
  • English
  • Français

The effect of oxygen on fermentation of sucrose by rumen micro-organisms in vitro

Published online by Cambridge University Press:  09 March 2007

J. W. Czerkawski  and
Grace Breckenridge
J. W. Czerkawski
Affiliation:
Hannah Dairy Research Institute, Ayr
Grace Breckenridge
Affiliation:
Hannah Dairy Research Institute, Ayr
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. The effect of oxygen on the fermentation of sucrose by mixed rumen micro-organisms in vitro was studied by adding oxygen to the gas phase in three ways: at the beginning of incubation, at two hourly intervals during incubation and continuously.

2. The additions of oxygen had no measurable effect on the utilization of sucrose or on the production of carbon dioxide, steam-volatile acids and particulate organic matter by the micro-organisms. The addition of oxygen at the beginning of incubation inhibited methane production and increased the accumulation of hydrogen. Similar but much less pronounced changes occurred when the oxygen was infused continuously.

3. In all the experiments there was a net uptake of oxygen by micro-organisms. When large amounts of oxygen were present in the gas phase the rates of uptake were proportional to these amounts. When small amounts of oxygen were added, the rates of uptake were independent of the amount added and had a value of approximately 5 ml/h when 100 ml of strained rumen contents were incubated.

Type
Research Article
Information
British Journal of Nutrition , Volume 23 , Issue 1 , March 1969 , pp. 67 - 80
Copyright
Copyright © The Nutrition Society 1969

References

Baldwin, R. L. & Emery, R. S. (1959). J. Dairy Sci. 42, 914.Google Scholar
Broberg, G. (1957). Nord. VetMed. 9, 942.Google Scholar
Broberg, G. (1958). Nord. VetMed. 10, 263.Google Scholar
Carroll, E. J. & Hungate, R. E. (1955). Archs Biochem. Biophys. 56, 525.CrossRefGoogle Scholar
Conway, E. J. (1962). Microdiffusion Analysis and Volumetric Error, p. 276. London: Crosby, Lock-wood and Son Ltd.Google Scholar
Czerkawski, J. W. (1968). Wld Rev. Nutr. Diet. (In the Press.)Google Scholar
Czerkawski, J. W. & Breckenridge, G. (1969). Br. J. Nutr. 23, 51.CrossRefGoogle Scholar
Czerkawski, J. W. & Clapperton, J. L. (1968). Lab. Pract. 17, 994.Google Scholar
Dobson, M. J., Brown, W. C. B., Dobson, A. & Phillipson, A. T. (1956). Q. Jl exp. Physiol. 41, 247.CrossRefGoogle Scholar
Hadjipetrou, L. P. & Stouthamer, A. H. (1965). J. gen. Microbiol. 38, 29.CrossRefGoogle Scholar
Hungate, R. E., Bryant, M. P. & Mah, R. A. (1964). A. Rev. Microbiol. 18, 131.CrossRefGoogle Scholar
Krishnamurti, C. R. & McElroy, L. W. (1967). Can. J. Anim. Sci. 47, 193.CrossRefGoogle Scholar
McArthur, J. M. & Miltimore, J. E. (1961). Can. J. Anim. Sci. 41, 187.CrossRefGoogle Scholar