Hostname: page-component-7479d7b7d-68ccn Total loading time: 0 Render date: 2024-07-11T08:26:00.695Z Has data issue: false hasContentIssue false
  • English
  • Français

The use of internal markers to estimate herbage digestibility and intake: 2. Indigestible acid detergent fibre

Published online by Cambridge University Press:  27 March 2009

P. D. Penning  and
R. H. Johnson
P. D. Penning
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berkshire, SL6 5LR
R. H. Johnson
Affiliation:
The Grassland Research Institute, Hurley, Maidenhead, Berkshire, SL6 5LR
Get access Rights & Permissions [Opens in a new window]

Summary

Digestibility trials were carried out using wether sheep, to determine the organicmatter digestibility of several forages. Acid detergent fibre (ADF) was isolated from samples of feed and faeces, incubated in buffered cellulase solution, and the ash-free residue remaining (IADF) was used as an internal marker to estimate the organicmatter digestibility (OMD) of the feeds. Estimates of the OMD value of the samples were also made using the standard in vitro digestibility technique.

IADF had reached a constant value after incubation for 4–5·5 days and predicted OMD more precisely than the in vitro digestibility technique.

It is concluded that IADF is a suitable internal marker and predicts OMD well. However, more work is required to test this technique over a wider range of herbage species and digestibilities.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 100 , Issue 1 , February 1983 , pp. 133 - 138
Copyright
Copyright © Cambridge University Press 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Barton, F. E., Akin, D. E. & Windham, R. (1981). Scanning electron microscopy of acid detergent fiber digestion by rumen microorganisms. Journal of Agricultural and Food Chemistry 29, 899–903.CrossRefGoogle ScholarPubMed
Cross, H. H., Smith, L. W. & DeBarth, J. V. (1974). Rates of in vitro forage fiber digestion as influenced by chemical treatment. Journal of Animal Science 39, 808–812.CrossRefGoogle Scholar
Elam, C. J. & Davis, R. E. (1961). Lignin excretion by cattle fed a mixed ration. Journal of Animal Science 20, 484–486.CrossRefGoogle Scholar
Ely, R. E., Kane, E. A., Jacobson, W. C. & Moore, L. A. (1953). Studies on the composition of lignin isolated from orchard grass hay cut at four stages of maturity and from the corresponding faeces. Journal of Dairy Science 36, 346–355.CrossRefGoogle Scholar
Jones, D. I. H. & Hayward, M. V. (1973). A cellulase digestion technique for predicting the dry matter digestibility of grasses. Journal of the Science of Food and Agriculture 24, 1419–1426.CrossRefGoogle ScholarPubMed
Kane, E. A., Ely, R. E., Jacobson, W. C. & Moore, L. A. (1953). A comparison of various digestion trial techniques with dairy cattle. Journal of Dairy Science 36, 325–333.CrossRefGoogle Scholar
Kleiber, M. (1961). The Fire of Life. New York and London: John Wiley.Google Scholar
Kotb, A. R. & Luckey, T. D. (1972). Markers in nutrition. Nutrition Abstracts and Reviews 42, 813–845.Google ScholarPubMed
Milne, J. A., Maxwell, T. J. & Souter, W. (1981). Effect of supplementary feeding and herbage mass on the intake and performance of grazing ewes in early lactation. Animal Production 32, 185–195.Google Scholar
Penning, P. D. & Johnson, R. H. (1983). The use of internal markers to estimate herbage digestibility and intake. 1. Potentially indigestible cellulose and acid insoluble ash. Journal of Agricultural Science, Cambridge 100, 127–131.CrossRefGoogle Scholar
Tilley, J. M. A. & Terry, R. A. (1963). A two-stage technique for the in vitro digestion of forage crops. Journal of the British Grassland Society 18, 104–111.CrossRefGoogle Scholar
Van Soest, P. J. (1963). Use of detergents in the analysis of fibrous feeds. II. A rapid method for the determination of fiber and lignin. Journal of the Association of Official Agricultural Chemists 46, 829–835.Google Scholar