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Behavior analysis of a first order degradation model when fitting the nutrient ruminal disappearance data

Published online by Cambridge University Press:  22 November 2017

M H Fathi Nasri ,
M Danesh Mesgaran ,
J France  and
A Riasi
M H Fathi Nasri*
Affiliation:
University of Birjand, Birjand, Islamic Republic of Iran
M Danesh Mesgaran
Affiliation:
Ferdowsi university of Mashad, Mashad, Islamic Republic of Iran
J France
Affiliation:
University of Guelph, Guelph, Canada
A Riasi
Affiliation:
University of Birjand, Birjand, Islamic Republic of Iran
*
Email: [email protected]
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Extract

There are several different models for describing the nutrient ruminal degradation of feeds. The use of a particular model in fitting a given degradability data set and estimating the degradability parameters implies the holistic examination of model goodness-of-fit, otherwise the validity of estimated parameters may be controvertible. One of the criteria for evaluating goodness-of-fit is model behaviour analysis. In the present work, the behaviour of a first-order model when fitting whole soybean ruminal degradability data was investigated.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2009 , April 2009 , pp. 170
Copyright
Copyright © The British Society of Animal Science 2009

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References

Lopez, L., France, J., Dhanoa, M. S., Mould, F., and Dijkstra, J.. 1999. Comparison of mathematical models to describe disappearance curves obtained using the polyester bag technique for incubating feeds in the rumen. Journal of Animal Science 77, 1875–1888.Google Scholar