<b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304

<p class="aTitulodoArtigo">The objective of this study was to formulate a mathematical model to estimate digestible energy in animal feeds for tilapia. Literature results were used of the proximate composition of crude protein, ether extract, mineral matter and gross energy, as well...

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Main Authors: Thêmis Sakaguti Graciano, Mariana Michelato, Tadeu Orlandi Xavier, Elias Nunes Martins, Wilson Massamitu Furuya, Luiz Vítor Oliveira Vidal
Format: Article
Language:English
Published: Editora da Universidade Estadual de Maringá (Eduem) 2012-05-01
Series:Acta Scientiarum: Animal Sciences
Subjects:
Online Access:http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13304
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author Thêmis Sakaguti Graciano
Mariana Michelato
Tadeu Orlandi Xavier
Elias Nunes Martins
Wilson Massamitu Furuya
Luiz Vítor Oliveira Vidal
author_facet Thêmis Sakaguti Graciano
Mariana Michelato
Tadeu Orlandi Xavier
Elias Nunes Martins
Wilson Massamitu Furuya
Luiz Vítor Oliveira Vidal
author_sort Thêmis Sakaguti Graciano
collection DOAJ
description <p class="aTitulodoArtigo">The objective of this study was to formulate a mathematical model to estimate digestible energy in animal feeds for tilapia. Literature results were used of the proximate composition of crude protein, ether extract, mineral matter and gross energy, as well as digestible energy obtained in biological assays. The data were subjected to stepwise backward multiple linear regression. Path analysis was performed to measure the direct and indirect effects of each independent variable on the dependent one. To validate the model, data from independent studies and values obtained from a digestibility trial with juvenile Nile tilapia testing five meat and bone meals (MBM) were used, using the Guelph feces collecting system and chromium oxide (III) as an indicator. The obtained model is described below and cannot estimate digestible energy (DE) of animal origin: . The path coefficients were medium or low, the highest direct effect was from gross energy (0.529), while the highest indirect effect was from crude protein, through gross energy (0.439).</p>
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spelling doaj.art-e338346e5cc94433a8a32672fc9424722022-12-22T02:27:08ZengEditora da Universidade Estadual de Maringá (Eduem)Acta Scientiarum: Animal Sciences1806-26361807-86722012-05-01343313319<b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304Thêmis Sakaguti GracianoMariana MichelatoTadeu Orlandi XavierElias Nunes MartinsWilson Massamitu FuruyaLuiz Vítor Oliveira Vidal<p class="aTitulodoArtigo">The objective of this study was to formulate a mathematical model to estimate digestible energy in animal feeds for tilapia. Literature results were used of the proximate composition of crude protein, ether extract, mineral matter and gross energy, as well as digestible energy obtained in biological assays. The data were subjected to stepwise backward multiple linear regression. Path analysis was performed to measure the direct and indirect effects of each independent variable on the dependent one. To validate the model, data from independent studies and values obtained from a digestibility trial with juvenile Nile tilapia testing five meat and bone meals (MBM) were used, using the Guelph feces collecting system and chromium oxide (III) as an indicator. The obtained model is described below and cannot estimate digestible energy (DE) of animal origin: . The path coefficients were medium or low, the highest direct effect was from gross energy (0.529), while the highest indirect effect was from crude protein, through gross energy (0.439).</p>http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13304nutritionnutritional valueestimatelinear models
spellingShingle Thêmis Sakaguti Graciano
Mariana Michelato
Tadeu Orlandi Xavier
Elias Nunes Martins
Wilson Massamitu Furuya
Luiz Vítor Oliveira Vidal
<b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304
Acta Scientiarum: Animal Sciences
nutrition
nutritional value
estimate
linear models
title <b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304
title_full <b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304
title_fullStr <b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304
title_full_unstemmed <b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304
title_short <b>Mathematical modeling for digestible energy in animal feeds for tilapia</b> - doi: 10.4025/actascianimsci.v34i3.13304
title_sort b mathematical modeling for digestible energy in animal feeds for tilapia b doi 10 4025 actascianimsci v34i3 13304
topic nutrition
nutritional value
estimate
linear models
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13304
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