Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.17533/udea.rccp.v33n4a04 http://hdl.handle.net/11449/206645 |
Resumo: | Background: The determination of amino acid supplements for broiler chicken requirements based on performance does not always reflect maximum profitability. Objective: To estimate the optimal levels of digestible threonine (Thr) and sulfur amino acids (SAA) in diets for broilers based on an economic analysis. Methods: Two dose-response assays were conducted, and each assay was divided into three phases: initial (1-14 days), grower (15-28 days), and finisher (29-42 days). Five hundred and sixty male Cobb 500® broilers were randomly distributed to seven treatments with increasing levels of the amino acid (SAA or Thr), with four replicates and 20 birds each. Bodyweight gain (BWG) and feed intake (FI) were used to fit a segmented model. Gross income (GI), total feed costs (TFC) and gross margin (GM) were calculated based on local values. Results: Increasing levels of amino acid elicited a response in BWG and FI for all evaluated phases. The estimates for maximum profit based on GI and TFC were 223, 504, and 975 mg SAA/bird/d, and 236, 696, and 1,042 mg Thr/bird/d in starter, grower and finisher phases, respectively. Conclusion: Varying the AA prices affected only slightly the economic optimal intake of Thr and sulfur amino acids. Despite market fluctuations, the economic approach presented in this study demonstrates to be a helpful tool to choose the ideal inclusion level of amino acids in the feed. |
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Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic returnRespuesta de pollos de engorde a la ingesta de aminoácidos azufrados y treonina digestibles: Máximo retorno económicoResposta de frangos de corte ao consumo de aminoácidos sulfurados e treonina digestíveis: Máximo retorno econômicoAmino acid supplementationDose-responseEconomic returnFeed costGross marginGrowth performancePoultrySegmented modelBackground: The determination of amino acid supplements for broiler chicken requirements based on performance does not always reflect maximum profitability. Objective: To estimate the optimal levels of digestible threonine (Thr) and sulfur amino acids (SAA) in diets for broilers based on an economic analysis. Methods: Two dose-response assays were conducted, and each assay was divided into three phases: initial (1-14 days), grower (15-28 days), and finisher (29-42 days). Five hundred and sixty male Cobb 500® broilers were randomly distributed to seven treatments with increasing levels of the amino acid (SAA or Thr), with four replicates and 20 birds each. Bodyweight gain (BWG) and feed intake (FI) were used to fit a segmented model. Gross income (GI), total feed costs (TFC) and gross margin (GM) were calculated based on local values. Results: Increasing levels of amino acid elicited a response in BWG and FI for all evaluated phases. The estimates for maximum profit based on GI and TFC were 223, 504, and 975 mg SAA/bird/d, and 236, 696, and 1,042 mg Thr/bird/d in starter, grower and finisher phases, respectively. Conclusion: Varying the AA prices affected only slightly the economic optimal intake of Thr and sulfur amino acids. Despite market fluctuations, the economic approach presented in this study demonstrates to be a helpful tool to choose the ideal inclusion level of amino acids in the feed.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias (FCAV) Universidade Estadual Paulista (Unesp)Natural Resources Institute Finland (Luke)Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias (FCAV) Universidade Estadual Paulista (Unesp)FAPESP: 2013/25761-4Universidade Estadual Paulista (Unesp)Natural Resources Institute Finland (Luke)Reis, Matheus De-Paula [UNESP]Cunha-Melaré, Mirella [UNESP]Silva-Viana, GabrielZanardo-Donato, Daniella C. [UNESP]Kazue-Sakomura, Nilva [UNESP]2021-06-25T10:35:43Z2021-06-25T10:35:43Z2020-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article239-251http://dx.doi.org/10.17533/udea.rccp.v33n4a04Revista Colombiana de Ciencias Pecuarias, v. 33, n. 4, p. 239-251, 2020.2256-29580120-0690http://hdl.handle.net/11449/20664510.17533/udea.rccp.v33n4a042-s2.0-85092423593Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Colombiana de Ciencias Pecuariasinfo:eu-repo/semantics/openAccess2024-06-07T18:41:31Zoai:repositorio.unesp.br:11449/206645Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:02:17.548949Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return Respuesta de pollos de engorde a la ingesta de aminoácidos azufrados y treonina digestibles: Máximo retorno económico Resposta de frangos de corte ao consumo de aminoácidos sulfurados e treonina digestíveis: Máximo retorno econômico |
title |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return |
spellingShingle |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return Reis, Matheus De-Paula [UNESP] Amino acid supplementation Dose-response Economic return Feed cost Gross margin Growth performance Poultry Segmented model |
title_short |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return |
title_full |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return |
title_fullStr |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return |
title_full_unstemmed |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return |
title_sort |
Response of broilers to digestible sulfur amino acids and threonine intake: Maximum economic return |
author |
Reis, Matheus De-Paula [UNESP] |
author_facet |
Reis, Matheus De-Paula [UNESP] Cunha-Melaré, Mirella [UNESP] Silva-Viana, Gabriel Zanardo-Donato, Daniella C. [UNESP] Kazue-Sakomura, Nilva [UNESP] |
author_role |
author |
author2 |
Cunha-Melaré, Mirella [UNESP] Silva-Viana, Gabriel Zanardo-Donato, Daniella C. [UNESP] Kazue-Sakomura, Nilva [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Natural Resources Institute Finland (Luke) |
dc.contributor.author.fl_str_mv |
Reis, Matheus De-Paula [UNESP] Cunha-Melaré, Mirella [UNESP] Silva-Viana, Gabriel Zanardo-Donato, Daniella C. [UNESP] Kazue-Sakomura, Nilva [UNESP] |
dc.subject.por.fl_str_mv |
Amino acid supplementation Dose-response Economic return Feed cost Gross margin Growth performance Poultry Segmented model |
topic |
Amino acid supplementation Dose-response Economic return Feed cost Gross margin Growth performance Poultry Segmented model |
description |
Background: The determination of amino acid supplements for broiler chicken requirements based on performance does not always reflect maximum profitability. Objective: To estimate the optimal levels of digestible threonine (Thr) and sulfur amino acids (SAA) in diets for broilers based on an economic analysis. Methods: Two dose-response assays were conducted, and each assay was divided into three phases: initial (1-14 days), grower (15-28 days), and finisher (29-42 days). Five hundred and sixty male Cobb 500® broilers were randomly distributed to seven treatments with increasing levels of the amino acid (SAA or Thr), with four replicates and 20 birds each. Bodyweight gain (BWG) and feed intake (FI) were used to fit a segmented model. Gross income (GI), total feed costs (TFC) and gross margin (GM) were calculated based on local values. Results: Increasing levels of amino acid elicited a response in BWG and FI for all evaluated phases. The estimates for maximum profit based on GI and TFC were 223, 504, and 975 mg SAA/bird/d, and 236, 696, and 1,042 mg Thr/bird/d in starter, grower and finisher phases, respectively. Conclusion: Varying the AA prices affected only slightly the economic optimal intake of Thr and sulfur amino acids. Despite market fluctuations, the economic approach presented in this study demonstrates to be a helpful tool to choose the ideal inclusion level of amino acids in the feed. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-01 2021-06-25T10:35:43Z 2021-06-25T10:35:43Z |
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/10.17533/udea.rccp.v33n4a04 Revista Colombiana de Ciencias Pecuarias, v. 33, n. 4, p. 239-251, 2020. 2256-2958 0120-0690 http://hdl.handle.net/11449/206645 10.17533/udea.rccp.v33n4a04 2-s2.0-85092423593 |
url |
http://dx.doi.org/10.17533/udea.rccp.v33n4a04 http://hdl.handle.net/11449/206645 |
identifier_str_mv |
Revista Colombiana de Ciencias Pecuarias, v. 33, n. 4, p. 239-251, 2020. 2256-2958 0120-0690 10.17533/udea.rccp.v33n4a04 2-s2.0-85092423593 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Colombiana de Ciencias Pecuarias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
239-251 |
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_ |
1808128887816716288 |