Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-23T14:30:06.726Z Has data issue: false hasContentIssue false
  • English
  • Français

Evaluation of models to describe neutral detergent fibre digestion in cattle fed at two levels of dry matter intake

Published online by Cambridge University Press:  24 November 2017

P. Huhtanen  and
U. Kukkonen
P. Huhtanen
Affiliation:
Department of Animal Husbandry, University of Helsinki, SF-00710 Helsinki, Finland
U. Kukkonen
Affiliation:
Department of Microbiology, University of Helsinki, SF-00710 Helsinki, Finland
Get access

Extract

Potentially digestible fibre leaves the rumen either by enzymatic breakdown or by passage to the lower tract. The digestibility of potentially digestible fibre is a function of the rate at which fibre is digested and its retention time in the rumen. The procedures used for estimating the rate of fibre digestion (kd) and the rate of passage of feed particles (kp) are extremely variable. The estimates for kd and kp derived by using different procedures can have a large effect on the fibre digestibility calculated from kinetic parameters of fibre. The objective of the present study was to evaluate the different methods in estimating the kinetic parameters of mathematical models that will describe cell wall digestion in the rumen.

Type
Ruminant Nutrition
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1991 , March 1991 , pp. 110
Copyright
Copyright © The British Society of Animal Production 1991

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

Allen, M.S. & Mertens, D.R., 1988. J. Nutr. 118:261–270.CrossRefGoogle Scholar
Huhtanen, P. & Khalili, H. 1989. Asian Australas. J. Anim. Sci., 2:400–401.CrossRefGoogle Scholar
Kukkonen, U. & Huhtanen, P. 1991. BSAP Winter Meeting 1991.CrossRefGoogle Scholar
McDonald, I. 1981. J. agric. Sci, Camb., 96:251–252.CrossRefGoogle Scholar