Energy and protein metabolism and nutrition , 2007-09-09

Title : ( Comparison of mathematical models to evaluate various ill situ ruminant feed crude protein degradation kinetics )

Authors: Mohsen Danesh Mesgaran , , Seyed Alireza Vakili , Alireza Heravi Moussavi ,

Citation: BibTeX | EndNote

Abstract

The in situ technique is a direct methodof measuring the rumen degradation kinetics of a feed. It was suggested to describe the data obtainedby this technique by an exponential curve (0rskov and McDonald, 1979).This first order exponentialmodel is a most commonprocedure for detennining crude protein and dry matter degradationcoefficients. However, very low attention has been paid to the choice of mathematical model to fit the curves and goodness-of-fitof the model. Different mathematical models were evaluated to describe ruminal dry matter (DM) and crude protein (CP) degradation kinetics ofvarim,ls feeds (Lopez et al., 1999; Fathi et al., 2006). In the present study, two different mathematical models of a straight line or a negative exponential (Fathi et al., 2006) were selected to evaluate crude protein(CP)degradation kinetics of variousruminant feeds including alfalfa hay, corn and whole barley silages, barley and coni grains, cottonseed ~mdsoybean meals using data obtained from the in situ technique.

Keywords

, ill situ, degradation kinetics, mathematical models
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@inproceedings{paperid:1008380,
author = {Danesh Mesgaran, Mohsen and , and Vakili, Seyed Alireza and Heravi Moussavi, Alireza},
title = {Comparison of mathematical models to evaluate various ill situ ruminant feed crude protein degradation kinetics},
booktitle = {Energy and protein metabolism and nutrition},
year = {2007},
location = {french},
keywords = {ill situ; degradation kinetics; mathematical models},
}

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%0 Conference Proceedings
%T Comparison of mathematical models to evaluate various ill situ ruminant feed crude protein degradation kinetics
%A Danesh Mesgaran, Mohsen
%A ,
%A Vakili, Seyed Alireza
%A Heravi Moussavi, Alireza
%J Energy and protein metabolism and nutrition
%D 2007

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