Response of broilers to digestible sulfur amino acids and threonine intake: maximum economic return

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...

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Autores principales:	Matheus De-Paula Reis, Mirella Cunha-Melaré, Gabriel Silva-Viana, Daniella C. Zanardo-Donato, Nilva Kazue-Sakomura
Formato:	article
Lenguaje:	EN
Publicado:	Universidad de Antioquia 2020
Materias:	amino acid supplementation dose-response economic return feed cost gross margin growth performance poultry segmented model Animal culture SF1-1100
Acceso en línea:	https://doaj.org/article/7009cb2a710a4e28b029848f7a0f853f
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spelling	oai:doaj.org-article:7009cb2a710a4e28b029848f7a0f853f2021-12-01T15:21:15ZResponse of broilers to digestible sulfur amino acids and threonine intake: maximum economic return2256-295810.17533/udea.rccp.v33n4a04https://doaj.org/article/7009cb2a710a4e28b029848f7a0f853f2020-05-01T00:00:00Zhttps://revistas.udea.edu.co/index.php/rccp/article/view/341980https://doaj.org/toc/2256-2958Background: 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.Matheus De-Paula ReisMirella Cunha-MelaréGabriel Silva-VianaDaniella C. Zanardo-DonatoNilva Kazue-SakomuraUniversidad de Antioquiaarticleamino acid supplementationdose-responseeconomic returnfeed costgross margingrowth performancepoultrysegmented modelAnimal cultureSF1-1100ENRevista Colombiana de Ciencias Pecuarias, Vol 33, Iss 4, Pp 239-251 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	amino acid supplementation dose-response economic return feed cost gross margin growth performance poultry segmented model Animal culture SF1-1100
spellingShingle	amino acid supplementation dose-response economic return feed cost gross margin growth performance poultry segmented model Animal culture SF1-1100 Matheus De-Paula Reis Mirella Cunha-Melaré Gabriel Silva-Viana Daniella C. Zanardo-Donato Nilva Kazue-Sakomura Response of broilers to digestible sulfur amino acids and threonine intake: maximum economic return
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.
format	article
author	Matheus De-Paula Reis Mirella Cunha-Melaré Gabriel Silva-Viana Daniella C. Zanardo-Donato Nilva Kazue-Sakomura
author_facet	Matheus De-Paula Reis Mirella Cunha-Melaré Gabriel Silva-Viana Daniella C. Zanardo-Donato Nilva Kazue-Sakomura
author_sort	Matheus De-Paula Reis
title	Response of broilers to digestible sulfur amino acids and threonine intake: maximum economic return
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
publisher	Universidad de Antioquia
publishDate	2020
url	https://doaj.org/article/7009cb2a710a4e28b029848f7a0f853f
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Response of broilers to digestible sulfur amino acids and threonine intake: maximum economic return

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