Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1371/journal.pone.0208488 http://hdl.handle.net/11449/189961 |
Resumo: | Determining the efficiency of amino acid (AA) utilization in growing animals is crucial to estimate their requirement accurately. In broiler chickens, the composition of AA in feather is different from feather-free body and the proportion of feathers will change along broiler’s growth, which may impact the efficiency of utilization on AA consumed. Therefore, in order to establish a method that predicts the efficiency of utilization for feather-free body and feather, two approaches were evaluated: a multiple linear regression and a multivariate analysis. Additionally, a new factorial model was proposed to predict AA requirements in broiler chickens. Data from 13 trials that evaluated the requirements for lysine (Lys), sulphur AA (SAA), threonine (Thr), and valine (Val) in male broilers were used for the analyses. Both methods of analysis were consistent in showing that the efficiency of utilization in feather-free body and feather were different. Using multiple linear regression, the values of efficiency of utilization estimated in feather-free body were 0.68, 0.72, 0.81, 0.79 (mg of amino acid deposited / mg of amino acid consumed above maintenance) and in feather were 0.58, 0.77, 0.78, and 1.57 (mg/mg) for Lys, SAA, Thr, and Val, respectively. Applying the multivariate approach, the corresponding predicted values were 0.68, 0.67, 4.23, 0.27 (mg/mg) in feather-free body and 1.16, 0.86, 0.16, and 1.10 (mg/mg) in feather, respectively. According to the results, efficiency of utilization may be related, to some extent, on the concentration determined in each tissue. The uncertainty around the amount of AA consumed for gain directed to feather-free body or feather deposition could be a limitation for multivariate analyses. The results indicated that multiple linear regression predictions may be better estimates of utilization efficiency. However, more studies are needed to elucidate the effect of age on deposition and partitioning of dietary AA in different parts of the broiler. |
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Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approachesDetermining the efficiency of amino acid (AA) utilization in growing animals is crucial to estimate their requirement accurately. In broiler chickens, the composition of AA in feather is different from feather-free body and the proportion of feathers will change along broiler’s growth, which may impact the efficiency of utilization on AA consumed. Therefore, in order to establish a method that predicts the efficiency of utilization for feather-free body and feather, two approaches were evaluated: a multiple linear regression and a multivariate analysis. Additionally, a new factorial model was proposed to predict AA requirements in broiler chickens. Data from 13 trials that evaluated the requirements for lysine (Lys), sulphur AA (SAA), threonine (Thr), and valine (Val) in male broilers were used for the analyses. Both methods of analysis were consistent in showing that the efficiency of utilization in feather-free body and feather were different. Using multiple linear regression, the values of efficiency of utilization estimated in feather-free body were 0.68, 0.72, 0.81, 0.79 (mg of amino acid deposited / mg of amino acid consumed above maintenance) and in feather were 0.58, 0.77, 0.78, and 1.57 (mg/mg) for Lys, SAA, Thr, and Val, respectively. Applying the multivariate approach, the corresponding predicted values were 0.68, 0.67, 4.23, 0.27 (mg/mg) in feather-free body and 1.16, 0.86, 0.16, and 1.10 (mg/mg) in feather, respectively. According to the results, efficiency of utilization may be related, to some extent, on the concentration determined in each tissue. The uncertainty around the amount of AA consumed for gain directed to feather-free body or feather deposition could be a limitation for multivariate analyses. The results indicated that multiple linear regression predictions may be better estimates of utilization efficiency. However, more studies are needed to elucidate the effect of age on deposition and partitioning of dietary AA in different parts of the broiler.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista (Unesp) Faculdade de Ciências Agrárias e VeterináriasDepartment of Animal Science University of CaliforniaUniversidade Estadual Paulista (Unesp) Faculdade de Ciências Agrárias e VeterináriasFAPESP: 2013/25761-4FAPESP: 2015/50444-8FAPESP: 2016/ 11172-5Universidade Estadual Paulista (Unesp)University of CaliforniaDe Paula Reis, Matheus [UNESP]Sakomura, Nilva Kazue [UNESP]Teixeira, Izabelle A.M.A. [UNESP]da Silva, Edney Pereira [UNESP]Kebreab, Ermias2019-10-06T16:57:47Z2019-10-06T16:57:47Z2018-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1371/journal.pone.0208488PLoS ONE, v. 13, n. 12, 2018.1932-6203http://hdl.handle.net/11449/18996110.1371/journal.pone.02084882-s2.0-850584354136152329000274858Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPLoS ONEinfo:eu-repo/semantics/openAccess2024-06-07T18:45:09Zoai:repositorio.unesp.br:11449/189961Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:14:33.237229Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
title |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
spellingShingle |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches De Paula Reis, Matheus [UNESP] |
title_short |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
title_full |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
title_fullStr |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
title_full_unstemmed |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
title_sort |
Partitioning the efficiency of utilization of amino acids in growing broilers: Multiple linear regression and multivariate approaches |
author |
De Paula Reis, Matheus [UNESP] |
author_facet |
De Paula Reis, Matheus [UNESP] Sakomura, Nilva Kazue [UNESP] Teixeira, Izabelle A.M.A. [UNESP] da Silva, Edney Pereira [UNESP] Kebreab, Ermias |
author_role |
author |
author2 |
Sakomura, Nilva Kazue [UNESP] Teixeira, Izabelle A.M.A. [UNESP] da Silva, Edney Pereira [UNESP] Kebreab, Ermias |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University of California |
dc.contributor.author.fl_str_mv |
De Paula Reis, Matheus [UNESP] Sakomura, Nilva Kazue [UNESP] Teixeira, Izabelle A.M.A. [UNESP] da Silva, Edney Pereira [UNESP] Kebreab, Ermias |
description |
Determining the efficiency of amino acid (AA) utilization in growing animals is crucial to estimate their requirement accurately. In broiler chickens, the composition of AA in feather is different from feather-free body and the proportion of feathers will change along broiler’s growth, which may impact the efficiency of utilization on AA consumed. Therefore, in order to establish a method that predicts the efficiency of utilization for feather-free body and feather, two approaches were evaluated: a multiple linear regression and a multivariate analysis. Additionally, a new factorial model was proposed to predict AA requirements in broiler chickens. Data from 13 trials that evaluated the requirements for lysine (Lys), sulphur AA (SAA), threonine (Thr), and valine (Val) in male broilers were used for the analyses. Both methods of analysis were consistent in showing that the efficiency of utilization in feather-free body and feather were different. Using multiple linear regression, the values of efficiency of utilization estimated in feather-free body were 0.68, 0.72, 0.81, 0.79 (mg of amino acid deposited / mg of amino acid consumed above maintenance) and in feather were 0.58, 0.77, 0.78, and 1.57 (mg/mg) for Lys, SAA, Thr, and Val, respectively. Applying the multivariate approach, the corresponding predicted values were 0.68, 0.67, 4.23, 0.27 (mg/mg) in feather-free body and 1.16, 0.86, 0.16, and 1.10 (mg/mg) in feather, respectively. According to the results, efficiency of utilization may be related, to some extent, on the concentration determined in each tissue. The uncertainty around the amount of AA consumed for gain directed to feather-free body or feather deposition could be a limitation for multivariate analyses. The results indicated that multiple linear regression predictions may be better estimates of utilization efficiency. However, more studies are needed to elucidate the effect of age on deposition and partitioning of dietary AA in different parts of the broiler. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 2019-10-06T16:57:47Z 2019-10-06T16:57:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1371/journal.pone.0208488 PLoS ONE, v. 13, n. 12, 2018. 1932-6203 http://hdl.handle.net/11449/189961 10.1371/journal.pone.0208488 2-s2.0-85058435413 6152329000274858 |
url |
http://dx.doi.org/10.1371/journal.pone.0208488 http://hdl.handle.net/11449/189961 |
identifier_str_mv |
PLoS ONE, v. 13, n. 12, 2018. 1932-6203 10.1371/journal.pone.0208488 2-s2.0-85058435413 6152329000274858 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
PLoS ONE |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129599619465216 |