Simulation model for particle dynamics in rumen of cattle fed sugarcane diet

Detalhes bibliográficos
Autor(a) principal: Collao-Saenz,Edgar Alain
Data de Publicação: 2005
Outros Autores: Dijkstra,Jan, Paiva,Paulo César de Aguiar, Bannink,André, Arcuri,Pedro Braga, Teixeira,Júlio César, Olalquiaga Pérez,Juan Ramón, David,Flávia Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200002
Resumo: Animal simulation models are sets of equations used to describe biological processes. A non-steady state simulation model of cattle digestion is presented in order to represent nutrient availability as a response to feed intake pattern and the kinetics of particle size reduction. Variables representing the particle size reduction and discontinuous voluntary feed intake were included in a mechanistic model created to optimize the supplementation of sugarcane based diets. In general the predicted values were very close to observed values for fibre and nitrogen flows. The model has not shown consistent bias in relation to the behavior of the observed data of duodenal flow of neutral detergent fiber and non-ammonia nitrogen. Milk production simulations were quite close to actual values. Predictions were improved by the non steady-state model, taking into account variable intake rate in relation to the previous steady-state model. The model can be used to select strategies for supplementation of cattle fed sugarcane based diets.
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spelling Simulation model for particle dynamics in rumen of cattle fed sugarcane dietdairy cowsmilk productionmodelingrumenAnimal simulation models are sets of equations used to describe biological processes. A non-steady state simulation model of cattle digestion is presented in order to represent nutrient availability as a response to feed intake pattern and the kinetics of particle size reduction. Variables representing the particle size reduction and discontinuous voluntary feed intake were included in a mechanistic model created to optimize the supplementation of sugarcane based diets. In general the predicted values were very close to observed values for fibre and nitrogen flows. The model has not shown consistent bias in relation to the behavior of the observed data of duodenal flow of neutral detergent fiber and non-ammonia nitrogen. Milk production simulations were quite close to actual values. Predictions were improved by the non steady-state model, taking into account variable intake rate in relation to the previous steady-state model. The model can be used to select strategies for supplementation of cattle fed sugarcane based diets.Escola Superior de Agricultura "Luiz de Queiroz"2005-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200002Scientia Agricola v.62 n.2 2005reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162005000200002info:eu-repo/semantics/openAccessCollao-Saenz,Edgar AlainDijkstra,JanPaiva,Paulo César de AguiarBannink,AndréArcuri,Pedro BragaTeixeira,Júlio CésarOlalquiaga Pérez,Juan RamónDavid,Flávia Mariaeng2005-04-08T00:00:00Zoai:scielo:S0103-90162005000200002Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2005-04-08T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
title Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
spellingShingle Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
Collao-Saenz,Edgar Alain
dairy cows
milk production
modeling
rumen
title_short Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
title_full Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
title_fullStr Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
title_full_unstemmed Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
title_sort Simulation model for particle dynamics in rumen of cattle fed sugarcane diet
author Collao-Saenz,Edgar Alain
author_facet Collao-Saenz,Edgar Alain
Dijkstra,Jan
Paiva,Paulo César de Aguiar
Bannink,André
Arcuri,Pedro Braga
Teixeira,Júlio César
Olalquiaga Pérez,Juan Ramón
David,Flávia Maria
author_role author
author2 Dijkstra,Jan
Paiva,Paulo César de Aguiar
Bannink,André
Arcuri,Pedro Braga
Teixeira,Júlio César
Olalquiaga Pérez,Juan Ramón
David,Flávia Maria
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Collao-Saenz,Edgar Alain
Dijkstra,Jan
Paiva,Paulo César de Aguiar
Bannink,André
Arcuri,Pedro Braga
Teixeira,Júlio César
Olalquiaga Pérez,Juan Ramón
David,Flávia Maria
dc.subject.por.fl_str_mv dairy cows
milk production
modeling
rumen
topic dairy cows
milk production
modeling
rumen
description Animal simulation models are sets of equations used to describe biological processes. A non-steady state simulation model of cattle digestion is presented in order to represent nutrient availability as a response to feed intake pattern and the kinetics of particle size reduction. Variables representing the particle size reduction and discontinuous voluntary feed intake were included in a mechanistic model created to optimize the supplementation of sugarcane based diets. In general the predicted values were very close to observed values for fibre and nitrogen flows. The model has not shown consistent bias in relation to the behavior of the observed data of duodenal flow of neutral detergent fiber and non-ammonia nitrogen. Milk production simulations were quite close to actual values. Predictions were improved by the non steady-state model, taking into account variable intake rate in relation to the previous steady-state model. The model can be used to select strategies for supplementation of cattle fed sugarcane based diets.
publishDate 2005
dc.date.none.fl_str_mv 2005-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162005000200002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.62 n.2 2005
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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