Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1071/AN20656 http://hdl.handle.net/11449/228996 |
Resumo: | Context: Tables of nutrient requirements assist nutritionists to formulate acceptable feeds for broilers but do not consider the objective of a business, namely, to maximise economic returns. Aims: The objective of the present study was to demonstrate that the optimum economic level of balanced protein is not static, but varies according to economic conditions. Methods: Responses of male and female broilers, reported in a companion paper, were used to calculate feed intake and weights of body, carcass, breast, leg and wing at 28, 42 and 56 days of age as functions of dietary balanced protein. Cost of feeding and revenue generated for live, dressed, and further-processed birds were calculated, from which the margin over feeding cost was generated separately for males and females at three ages and three revenue-generating scenarios. Key results: Using baseline values for the cost of protein-containing ingredients and revenue for birds sold live, dressed or further-processed, the dietary protein content that maximised margin over feed cost was always higher for males than for females, and for birds sold further-processed than for those sold dressed or live. Using digestible lysine as the reference amino acid, the optimum in the starter period for males sold live, dressed and further processed was 12.6, 13.3 and 14.2 g lysine/kg respectively. For females, the equivalent values were 11.9, 12.6 and 13.3 g/kg respectively. Where the cost of protein-containing ingredients was increased by 25% or revenue generated from the sale of product was reduced by 25%, the optimum economic level of dietary protein decreased compared with the baseline value. The opposite pertained when ingredient costs decreased, or revenues increased by 25%. Conclusions: These results demonstrated the extent to which economic factors influence the optimum economic level of dietary balanced protein to be fed to broilers. Implications: We have demonstrated that the response of broilers to dietary balanced protein may be used to maximise economic returns of a broiler enterprise under different scenarios. |
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Repositório Institucional da UNESP |
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Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of proteinamino acidseconomic optimisationfeeding costgross marginrevenueContext: Tables of nutrient requirements assist nutritionists to formulate acceptable feeds for broilers but do not consider the objective of a business, namely, to maximise economic returns. Aims: The objective of the present study was to demonstrate that the optimum economic level of balanced protein is not static, but varies according to economic conditions. Methods: Responses of male and female broilers, reported in a companion paper, were used to calculate feed intake and weights of body, carcass, breast, leg and wing at 28, 42 and 56 days of age as functions of dietary balanced protein. Cost of feeding and revenue generated for live, dressed, and further-processed birds were calculated, from which the margin over feeding cost was generated separately for males and females at three ages and three revenue-generating scenarios. Key results: Using baseline values for the cost of protein-containing ingredients and revenue for birds sold live, dressed or further-processed, the dietary protein content that maximised margin over feed cost was always higher for males than for females, and for birds sold further-processed than for those sold dressed or live. Using digestible lysine as the reference amino acid, the optimum in the starter period for males sold live, dressed and further processed was 12.6, 13.3 and 14.2 g lysine/kg respectively. For females, the equivalent values were 11.9, 12.6 and 13.3 g/kg respectively. Where the cost of protein-containing ingredients was increased by 25% or revenue generated from the sale of product was reduced by 25%, the optimum economic level of dietary protein decreased compared with the baseline value. The opposite pertained when ingredient costs decreased, or revenues increased by 25%. Conclusions: These results demonstrated the extent to which economic factors influence the optimum economic level of dietary balanced protein to be fed to broilers. Implications: We have demonstrated that the response of broilers to dietary balanced protein may be used to maximise economic returns of a broiler enterprise under different scenarios.Departamento de Zootecnia UNESP-Universidade Estadual Paulista (Unesp) Faculdade de Ciências Agrárias e Veterinárias, Via de Acesso Professor Paulo Donato Castellane, s/n São PauloSchool of Agricultural Earth and Environmental Sciences University of KwaZulu-Natal, Carbis Road, PietermaritzburgEvonik Operations GmbH, Rodenbacher Chaussee 4Departamento de Zootecnia UNESP-Universidade Estadual Paulista (Unesp) Faculdade de Ciências Agrárias e Veterinárias, Via de Acesso Professor Paulo Donato Castellane, s/n São PauloUniversidade Estadual Paulista (UNESP)University of KwaZulu-NatalEvonik Operations GmbHAzevedo, Jefferson Moraes [UNESP]De Paula Reis, Matheus [UNESP]Gous, Robert M.Dorigam, Juliano César De PaulaLizana, Rony Riveros [UNESP]Sakomura, Nilva Kazue [UNESP]2022-04-29T08:29:43Z2022-04-29T08:29:43Z2021-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1435-1441http://dx.doi.org/10.1071/AN20656Animal Production Science, v. 61, n. 14, p. 1435-1441, 2021.1836-57871836-0939http://hdl.handle.net/11449/22899610.1071/AN206562-s2.0-85108242532Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnimal Production Scienceinfo:eu-repo/semantics/openAccess2024-06-07T18:44:15Zoai:repositorio.unesp.br:11449/228996Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:07:17.732630Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
title |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
spellingShingle |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein Azevedo, Jefferson Moraes [UNESP] amino acids economic optimisation feeding cost gross margin revenue |
title_short |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
title_full |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
title_fullStr |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
title_full_unstemmed |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
title_sort |
Response of broilers to dietary balanced protein. 2. Determining the optimum economic level of protein |
author |
Azevedo, Jefferson Moraes [UNESP] |
author_facet |
Azevedo, Jefferson Moraes [UNESP] De Paula Reis, Matheus [UNESP] Gous, Robert M. Dorigam, Juliano César De Paula Lizana, Rony Riveros [UNESP] Sakomura, Nilva Kazue [UNESP] |
author_role |
author |
author2 |
De Paula Reis, Matheus [UNESP] Gous, Robert M. Dorigam, Juliano César De Paula Lizana, Rony Riveros [UNESP] Sakomura, Nilva Kazue [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University of KwaZulu-Natal Evonik Operations GmbH |
dc.contributor.author.fl_str_mv |
Azevedo, Jefferson Moraes [UNESP] De Paula Reis, Matheus [UNESP] Gous, Robert M. Dorigam, Juliano César De Paula Lizana, Rony Riveros [UNESP] Sakomura, Nilva Kazue [UNESP] |
dc.subject.por.fl_str_mv |
amino acids economic optimisation feeding cost gross margin revenue |
topic |
amino acids economic optimisation feeding cost gross margin revenue |
description |
Context: Tables of nutrient requirements assist nutritionists to formulate acceptable feeds for broilers but do not consider the objective of a business, namely, to maximise economic returns. Aims: The objective of the present study was to demonstrate that the optimum economic level of balanced protein is not static, but varies according to economic conditions. Methods: Responses of male and female broilers, reported in a companion paper, were used to calculate feed intake and weights of body, carcass, breast, leg and wing at 28, 42 and 56 days of age as functions of dietary balanced protein. Cost of feeding and revenue generated for live, dressed, and further-processed birds were calculated, from which the margin over feeding cost was generated separately for males and females at three ages and three revenue-generating scenarios. Key results: Using baseline values for the cost of protein-containing ingredients and revenue for birds sold live, dressed or further-processed, the dietary protein content that maximised margin over feed cost was always higher for males than for females, and for birds sold further-processed than for those sold dressed or live. Using digestible lysine as the reference amino acid, the optimum in the starter period for males sold live, dressed and further processed was 12.6, 13.3 and 14.2 g lysine/kg respectively. For females, the equivalent values were 11.9, 12.6 and 13.3 g/kg respectively. Where the cost of protein-containing ingredients was increased by 25% or revenue generated from the sale of product was reduced by 25%, the optimum economic level of dietary protein decreased compared with the baseline value. The opposite pertained when ingredient costs decreased, or revenues increased by 25%. Conclusions: These results demonstrated the extent to which economic factors influence the optimum economic level of dietary balanced protein to be fed to broilers. Implications: We have demonstrated that the response of broilers to dietary balanced protein may be used to maximise economic returns of a broiler enterprise under different scenarios. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-01 2022-04-29T08:29:43Z 2022-04-29T08:29:43Z |
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/10.1071/AN20656 Animal Production Science, v. 61, n. 14, p. 1435-1441, 2021. 1836-5787 1836-0939 http://hdl.handle.net/11449/228996 10.1071/AN20656 2-s2.0-85108242532 |
url |
http://dx.doi.org/10.1071/AN20656 http://hdl.handle.net/11449/228996 |
identifier_str_mv |
Animal Production Science, v. 61, n. 14, p. 1435-1441, 2021. 1836-5787 1836-0939 10.1071/AN20656 2-s2.0-85108242532 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Animal Production Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1435-1441 |
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_ |
1808129393970642944 |