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The effect of diet on rumen chitin content in sheep

Published online by Cambridge University Press:  20 November 2017

M. Rezaeian ,
G. W. Beakes  and
D. S. Parker
M. Rezaeian
Affiliation:
Department of Animal Breeding & Nutrition, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
G. W. Beakes
Affiliation:
Department of Biological & Nutritional Science, University of Newcastle Upon Tyne, NE1 7RU
D. S. Parker
Affiliation:
Department of Biological & Nutritional Science, University of Newcastle Upon Tyne, NE1 7RU
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Extract

Measurement of in situ fungal populations is needed in order to determine the extent of their contribution to the ruminal digestive process. Since chitin is present in the cell wall of rumen fungi (Orpin, 1977), measurement of this polymer can be used to estimate fungal biomass and their growth in vitro (Rezaeian, 1996) and in vivo (Argyle and Douglas, 1989). The objective of this experiment was to study the effect of diet composition on the chitin content of both ruminal fluid and digesta solids as an index of the fungal population in the rumen.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 154
Copyright
Copyright © The British Society of Animal Science 2001

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References

Argyle, J. L. and Douglas, L. (1989). Chitin as a fungal marker. In: The roles of protozoa and fungi in ruminant digestion. (Nolan, J. V., Leng, R. A., and Demeyer, D. I. eds.), Pp. 289–291. Penambul Books, Armidale, Australia.Google Scholar
Chen, G. C. and Johnson, B. R. (1983). Improved colorimetric determination of cell wall chitin in wood decay fungi. Applied & Environmental Microbiology 46, 13–16 CrossRefGoogle ScholarPubMed
Orpin, C. G. (1977). The occurrence of chitin in the cell walls of the rumen organisms Neocallimastix frontalis, Piromonas communis and Sphaeromonas communis . J. Gen. Microbiol. 99, 215–218.Google Scholar
Rezaeian, M. 1996. Assessment and distribution of anaerobic fungi in the ruminant gut. Ph.D. Thesis, University of Newcastle Upon Tyne Google Scholar