Reevaluation of the digestible lysine requirement for broilers based on genetic potential
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0103-90162014000300004 http://hdl.handle.net/11449/112015 |
Resumo: | Broiler strains available in the poultry industry present different requirements for dietary lysine due to their different growth potentials as a result of their genetic makeup. This study aimed to determine the model parameters for maximum nitrogen retention (NRmaxT), the nitrogen maintenance requirement (NMR) and the efficiency of lysine utilization (bc(-1)) to reevaluate the lysine (Lys) requirements of male and female broilers. Nitrogen balance trials were performed during three periods (I: 6-21 days, II: 22-37 days, and III: 38-53 days). Seven treatments were used for males and females; the treatments consisted of seven diets with protein levels ranging from 61 to 364 g kg(-1) dry matter, with Lys being limiting in the dietary nitrogen (4.91 g of Lys in 16 g of N). Nitrogen intake (NI), excretion (NEX), deposition (ND, ND=NI-NEX) and retention (NR, NR=ND+NMR) values were obtained. The NMR was represented by the exponential relationship between NEX and NI. The NRmaxT and bc(-1) were estimated by the exponential fit between ND and NI. The NRmaxT, bc(-1), and NMR values were combined in a model to estimate Lys intake by simulating different percentages of the NRmaxT. The Lys intake estimates were 581, 1,538, and 2,171 mg day(-1) for males and 512, 1,340, and 1674 mg day(-1) for females during periods I, II, and III, respectively. Due to the flexibility of the model, it is possible to calculate the Lys intake for percentages of NR in the range of practical performance data. |
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Repositório Institucional da UNESP |
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Reevaluation of the digestible lysine requirement for broilers based on genetic potentialAminoacidexponential modelmaintenancenitrogen retentionPerformanceBroiler strains available in the poultry industry present different requirements for dietary lysine due to their different growth potentials as a result of their genetic makeup. This study aimed to determine the model parameters for maximum nitrogen retention (NRmaxT), the nitrogen maintenance requirement (NMR) and the efficiency of lysine utilization (bc(-1)) to reevaluate the lysine (Lys) requirements of male and female broilers. Nitrogen balance trials were performed during three periods (I: 6-21 days, II: 22-37 days, and III: 38-53 days). Seven treatments were used for males and females; the treatments consisted of seven diets with protein levels ranging from 61 to 364 g kg(-1) dry matter, with Lys being limiting in the dietary nitrogen (4.91 g of Lys in 16 g of N). Nitrogen intake (NI), excretion (NEX), deposition (ND, ND=NI-NEX) and retention (NR, NR=ND+NMR) values were obtained. The NMR was represented by the exponential relationship between NEX and NI. The NRmaxT and bc(-1) were estimated by the exponential fit between ND and NI. The NRmaxT, bc(-1), and NMR values were combined in a model to estimate Lys intake by simulating different percentages of the NRmaxT. The Lys intake estimates were 581, 1,538, and 2,171 mg day(-1) for males and 512, 1,340, and 1674 mg day(-1) for females during periods I, II, and III, respectively. Due to the flexibility of the model, it is possible to calculate the Lys intake for percentages of NR in the range of practical performance data.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Ajinomoto Ltd.Georg-August University of Goettingen (Germany)Sao Paulo State Univ, Dept Anim Sci & Nutr, BR-14884900 Jaboticabal, SP, BrazilSao Paulo State Univ, Dept Anim Sci & Nutr, BR-14884900 Jaboticabal, SP, BrazilUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)De Paula Dorigam, Juliano Cesar [UNESP]Sakomura, Nilva Kazue [UNESP]Hauschild, Luciano [UNESP]Silva, Edney Pereira da [UNESP]Palma Bendezu, Hilda Cristina [UNESP]Kochenborger Fernandespotential, Joao Batista [UNESP]2014-12-03T13:09:10Z2014-12-03T13:09:10Z2014-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article195-203application/pdfhttp://dx.doi.org/10.1590/S0103-90162014000300004Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 71, n. 3, p. 195-203, 2014.0103-9016http://hdl.handle.net/11449/112015S0103-90162014000300004WOS:000337945800004S0103-90162014000300004.pdf61523290002748581612969183171944Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientia Agricola0,578info:eu-repo/semantics/openAccess2024-06-07T18:43:36Zoai:repositorio.unesp.br:11449/112015Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:58:31.441724Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
title |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
spellingShingle |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential De Paula Dorigam, Juliano Cesar [UNESP] Aminoacid exponential model maintenance nitrogen retention Performance |
title_short |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
title_full |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
title_fullStr |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
title_full_unstemmed |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
title_sort |
Reevaluation of the digestible lysine requirement for broilers based on genetic potential |
author |
De Paula Dorigam, Juliano Cesar [UNESP] |
author_facet |
De Paula Dorigam, Juliano Cesar [UNESP] Sakomura, Nilva Kazue [UNESP] Hauschild, Luciano [UNESP] Silva, Edney Pereira da [UNESP] Palma Bendezu, Hilda Cristina [UNESP] Kochenborger Fernandespotential, Joao Batista [UNESP] |
author_role |
author |
author2 |
Sakomura, Nilva Kazue [UNESP] Hauschild, Luciano [UNESP] Silva, Edney Pereira da [UNESP] Palma Bendezu, Hilda Cristina [UNESP] Kochenborger Fernandespotential, Joao Batista [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Paula Dorigam, Juliano Cesar [UNESP] Sakomura, Nilva Kazue [UNESP] Hauschild, Luciano [UNESP] Silva, Edney Pereira da [UNESP] Palma Bendezu, Hilda Cristina [UNESP] Kochenborger Fernandespotential, Joao Batista [UNESP] |
dc.subject.por.fl_str_mv |
Aminoacid exponential model maintenance nitrogen retention Performance |
topic |
Aminoacid exponential model maintenance nitrogen retention Performance |
description |
Broiler strains available in the poultry industry present different requirements for dietary lysine due to their different growth potentials as a result of their genetic makeup. This study aimed to determine the model parameters for maximum nitrogen retention (NRmaxT), the nitrogen maintenance requirement (NMR) and the efficiency of lysine utilization (bc(-1)) to reevaluate the lysine (Lys) requirements of male and female broilers. Nitrogen balance trials were performed during three periods (I: 6-21 days, II: 22-37 days, and III: 38-53 days). Seven treatments were used for males and females; the treatments consisted of seven diets with protein levels ranging from 61 to 364 g kg(-1) dry matter, with Lys being limiting in the dietary nitrogen (4.91 g of Lys in 16 g of N). Nitrogen intake (NI), excretion (NEX), deposition (ND, ND=NI-NEX) and retention (NR, NR=ND+NMR) values were obtained. The NMR was represented by the exponential relationship between NEX and NI. The NRmaxT and bc(-1) were estimated by the exponential fit between ND and NI. The NRmaxT, bc(-1), and NMR values were combined in a model to estimate Lys intake by simulating different percentages of the NRmaxT. The Lys intake estimates were 581, 1,538, and 2,171 mg day(-1) for males and 512, 1,340, and 1674 mg day(-1) for females during periods I, II, and III, respectively. Due to the flexibility of the model, it is possible to calculate the Lys intake for percentages of NR in the range of practical performance data. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-03T13:09:10Z 2014-12-03T13:09:10Z 2014-05-01 |
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/10.1590/S0103-90162014000300004 Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 71, n. 3, p. 195-203, 2014. 0103-9016 http://hdl.handle.net/11449/112015 S0103-90162014000300004 WOS:000337945800004 S0103-90162014000300004.pdf 6152329000274858 1612969183171944 |
url |
http://dx.doi.org/10.1590/S0103-90162014000300004 http://hdl.handle.net/11449/112015 |
identifier_str_mv |
Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 71, n. 3, p. 195-203, 2014. 0103-9016 S0103-90162014000300004 WOS:000337945800004 S0103-90162014000300004.pdf 6152329000274858 1612969183171944 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientia Agricola 0,578 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
195-203 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo (USP) |
publisher.none.fl_str_mv |
Universidade de São Paulo (USP) |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808129270581559296 |