REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência animal brasileira (Online) |
Texto Completo: | https://revistas.ufg.br/vet/article/view/e-22100 |
Resumo: | An experiment was carried out to evaluate the requirement of methionine +cystine for growing pullets at starter phase (1 to 6 weeks old) and its effect on the laying phase. In the first experiment, 720 birds (50% Lohmann LSL and 50% Lohmann Brown) at one week of age were distributed on a completely randomized design, 5 x 2 factorial arrangement (levels of met + cys and strain), with four replications and 18 birds each. The levels of total methionine + cystine studied were 0.536; 0.616; 0.696; 0.776; and 0.856 %. At 22 weeks of age, 240 birds were used for the second experimental phase. The diets given to birds at this phase was the same for all the treatments. In the production phase, the residual effects of the experimental diets provided during the initial phase on the production parameters were evaluated. The level of methionine + cystine recommended for white-egg and brown-egg pullets in the period from 1 to 6 weeks of age are 0.778 % of total methionine + cystine (0.700% met + cis digestible) and 0.739% of total methionine + cystine (0.665% of digestible methionine + cystine), respectively.Keywords: amino acids; egg; hens; requeriments; sexual maturity. |
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REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD)EXIGÊNCIA DE METIONINA + CISTINA PARA FRANGAS DE REPOSIÇÃO NA FASE INICIAL (1 A 6 SEMANAS DE IDADE)Animal Nutritionaminoácidosmaturidade sexualovospoedeirasrequerimentosAn experiment was carried out to evaluate the requirement of methionine +cystine for growing pullets at starter phase (1 to 6 weeks old) and its effect on the laying phase. In the first experiment, 720 birds (50% Lohmann LSL and 50% Lohmann Brown) at one week of age were distributed on a completely randomized design, 5 x 2 factorial arrangement (levels of met + cys and strain), with four replications and 18 birds each. The levels of total methionine + cystine studied were 0.536; 0.616; 0.696; 0.776; and 0.856 %. At 22 weeks of age, 240 birds were used for the second experimental phase. The diets given to birds at this phase was the same for all the treatments. In the production phase, the residual effects of the experimental diets provided during the initial phase on the production parameters were evaluated. The level of methionine + cystine recommended for white-egg and brown-egg pullets in the period from 1 to 6 weeks of age are 0.778 % of total methionine + cystine (0.700% met + cis digestible) and 0.739% of total methionine + cystine (0.665% of digestible methionine + cystine), respectively.Keywords: amino acids; egg; hens; requeriments; sexual maturity.Objetivou-se determinar a exigência de metionina + cistina total para frangas na fase inicial e verificar seu efeito sobre a fase de postura. Na primeira fase experimental, 720 aves (50% Lohmann LSL e 50% Lohmann Brown) com uma semana de idade foram distribuídas em delineamento experimental inteiramente casualizado, em esquema fatorial 5 x 2 (níveis de met + cis e linhagens), com quatro repetições e 18 aves por repetição. Os níveis de met + cis total estudados foram 0,536; 0,616; 0,696; 0,776; e 0,856 %. Ao atingirem 22 semanas de idade, iniciou-se a segunda fase experimental, sendo utilizadas 240 aves (50% Lohmann LSL e 50% Lohmann Brown) provenientes da primeira fase experimental. A ração fornecida às aves nesta fase foi igual para todos os tratamentos. Na fase de produção avaliaram-se os efeitos residuais das dietas fornecidas no período inicial sobre os parâmetros produtivos. As exigências de metionina + cistina recomendadas para aves leves e semipesadas, no período de 1 a 6 semanas de idade, são de 0,778% de met + cis total (correspondendo a 0,700% de met + cis digestível) e 0,739% de met + cis total (correspondendo a 0,665% de met + cis digestível), respectivamente.Palavras-chave: aminoácidos; maturidade sexual; ovos; poedeiras; requerimentos.Universidade Federal de Goiás2017-05-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa CientíficaResearchapplication/pdftext/htmlhttps://revistas.ufg.br/vet/article/view/e-2210010.1590/cab18022100Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 18 (2017): Continuous publicationCiência Animal Brasileira / Brazilian Animal Science; v. 18 (2017): Publicação contínua1809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/e-22100/22912https://revistas.ufg.br/vet/article/view/e-22100/22913D´Agostini, PriscilaGomes, Paulo CezarMello, Heloisa Helena de CarvalhoCalderano, Arele ArlindoSá, Luciano MoraesRostagno, Horacio SantiagoAlbino, Luiz Fernando Teixeirainfo:eu-repo/semantics/openAccess2023-06-07T18:48:26Zoai:ojs.revistas.ufg.br:article/22100Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:55:57.224177Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) EXIGÊNCIA DE METIONINA + CISTINA PARA FRANGAS DE REPOSIÇÃO NA FASE INICIAL (1 A 6 SEMANAS DE IDADE) |
title |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) |
spellingShingle |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) D´Agostini, Priscila Animal Nutrition aminoácidos maturidade sexual ovos poedeiras requerimentos |
title_short |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) |
title_full |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) |
title_fullStr |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) |
title_full_unstemmed |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) |
title_sort |
REQUIREMENT OF METHIONINE PLUS CYSTINE FOR PULLETS IN THE INITIAL PHASE (1 TO 6 WEEKS OLD) |
author |
D´Agostini, Priscila |
author_facet |
D´Agostini, Priscila Gomes, Paulo Cezar Mello, Heloisa Helena de Carvalho Calderano, Arele Arlindo Sá, Luciano Moraes Rostagno, Horacio Santiago Albino, Luiz Fernando Teixeira |
author_role |
author |
author2 |
Gomes, Paulo Cezar Mello, Heloisa Helena de Carvalho Calderano, Arele Arlindo Sá, Luciano Moraes Rostagno, Horacio Santiago Albino, Luiz Fernando Teixeira |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
D´Agostini, Priscila Gomes, Paulo Cezar Mello, Heloisa Helena de Carvalho Calderano, Arele Arlindo Sá, Luciano Moraes Rostagno, Horacio Santiago Albino, Luiz Fernando Teixeira |
dc.subject.por.fl_str_mv |
Animal Nutrition aminoácidos maturidade sexual ovos poedeiras requerimentos |
topic |
Animal Nutrition aminoácidos maturidade sexual ovos poedeiras requerimentos |
description |
An experiment was carried out to evaluate the requirement of methionine +cystine for growing pullets at starter phase (1 to 6 weeks old) and its effect on the laying phase. In the first experiment, 720 birds (50% Lohmann LSL and 50% Lohmann Brown) at one week of age were distributed on a completely randomized design, 5 x 2 factorial arrangement (levels of met + cys and strain), with four replications and 18 birds each. The levels of total methionine + cystine studied were 0.536; 0.616; 0.696; 0.776; and 0.856 %. At 22 weeks of age, 240 birds were used for the second experimental phase. The diets given to birds at this phase was the same for all the treatments. In the production phase, the residual effects of the experimental diets provided during the initial phase on the production parameters were evaluated. The level of methionine + cystine recommended for white-egg and brown-egg pullets in the period from 1 to 6 weeks of age are 0.778 % of total methionine + cystine (0.700% met + cis digestible) and 0.739% of total methionine + cystine (0.665% of digestible methionine + cystine), respectively.Keywords: amino acids; egg; hens; requeriments; sexual maturity. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Científica Research |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/vet/article/view/e-22100 10.1590/cab18022100 |
url |
https://revistas.ufg.br/vet/article/view/e-22100 |
identifier_str_mv |
10.1590/cab18022100 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/vet/article/view/e-22100/22912 https://revistas.ufg.br/vet/article/view/e-22100/22913 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 18 (2017): Continuous publication Ciência Animal Brasileira / Brazilian Animal Science; v. 18 (2017): Publicação contínua 1809-6891 1518-2797 reponame:Ciência animal brasileira (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Ciência animal brasileira (Online) |
collection |
Ciência animal brasileira (Online) |
repository.name.fl_str_mv |
Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
||revistacab@gmail.com |
_version_ |
1799874787801038848 |