Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine

Detalhes bibliográficos
Autor(a) principal: Figueiredo, G. O.
Data de Publicação: 2012
Outros Autores: Bertechini, A. G., Fassani, E. J., Rodrigues, P. B., Brito, J. A. G, Castro, S. F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/12760
Resumo: The present study was developed using 864 Hy-Line W36 laying hens (42 to 58 weeks of age) with a randomized experimental design in a 4x3 factorial arrangement, with five replicates and 12 birds per experimental unit and 4 evaluation periods of 28 days each. The digestible lysine levels studied were 0.675%, 0.743%, 0.811% and 0.879%, and the digestible threonine levels were 0.542%, 0.596% and 0.650%. The performance and egg quality was evaluated. There were no significant effects on the egg production, specific gravity, albumen and yolk percentage and total solids in albumen and yolk for birds submitted to the different dietary digestible lysine and threonine levels. There was significant interaction between these amino acids on the egg shell percentage and Haugh unit in fresh eggs. There was a decreasing linear effect on the feed intake with increase of digestible lysine level. Egg weight, egg mass and feed conversion demonstrated a quadratic effect with the increase of the digestible lysine level with the best results in the diets with 0.754, 0.772 and 0.795% of digestible lysine, respectively.
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spelling Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonineDesempenho e qualidade de ovos de poedeiras alimentadas com dietas contendo níveis de lisina e treonina digestíveisAmino acidsLaying hensCrude proteinHaugh unitAminoácidosProteína brutaUnidade HaughOvos - QualidadeGalinha - NutriçãoThe present study was developed using 864 Hy-Line W36 laying hens (42 to 58 weeks of age) with a randomized experimental design in a 4x3 factorial arrangement, with five replicates and 12 birds per experimental unit and 4 evaluation periods of 28 days each. The digestible lysine levels studied were 0.675%, 0.743%, 0.811% and 0.879%, and the digestible threonine levels were 0.542%, 0.596% and 0.650%. The performance and egg quality was evaluated. There were no significant effects on the egg production, specific gravity, albumen and yolk percentage and total solids in albumen and yolk for birds submitted to the different dietary digestible lysine and threonine levels. There was significant interaction between these amino acids on the egg shell percentage and Haugh unit in fresh eggs. There was a decreasing linear effect on the feed intake with increase of digestible lysine level. Egg weight, egg mass and feed conversion demonstrated a quadratic effect with the increase of the digestible lysine level with the best results in the diets with 0.754, 0.772 and 0.795% of digestible lysine, respectively.O presente trabalho foi desenvolvido utilizando 864 poedeiras Hy-Line W36 (42 a 58 semanas de idade) em um delineamento inteiramente casualizado no esquema fatorial 4x3 com 5 repetições e 12 aves por parcela e 4 períodos de avaliação de 28 dias cada. Os níveis de lisina digestível estudados foram 0,675%; 0,743%; 0,811% e 0,879%, e os de treonina digestível de 0,542%, 596% e 0,650%. Foram avaliados o desempenho e a qualidade dos ovos. Não houve efeitos significativos sobre a produção de ovos, gravidade específica, proporção de clara ou albúmen e seus respectivos teores de sólidos totais para poedeiras submetidas aos respectivos níveis de lisina e treonina na ração. Houve interação entre os níveis de treonina e lisina, para porcentagem de casca e unidade Haugh. Houve redução linear no consumo de ração em função do aumento dos níveis de lisina digestível na ração. Houve comportamento quadrático para peso dos ovos, massa dos ovos e conversão alimentar em função dos níveis de lisina digestível, estimando-se níveis ótimos para respectivas características em 0,754; 0,772 e 0,795%, respectivamente.Universidade Federal de Minas Gerais2017-04-20T18:50:39Z2017-04-20T18:50:39Z2012-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFIGUEIREDO, G. O. et al. Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 64, n. 3, p. 743-750, June 2012.http://repositorio.ufla.br/jspui/handle/1/12760Arquivo Brasileiro de Medicina Veterinária e Zootecniareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAFigueiredo, G. O.Bertechini, A. G.Fassani, E. J.Rodrigues, P. B.Brito, J. A. GCastro, S. F.info:eu-repo/semantics/openAccesseng2017-04-20T18:50:39Zoai:localhost:1/12760Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2017-04-20T18:50:39Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
Desempenho e qualidade de ovos de poedeiras alimentadas com dietas contendo níveis de lisina e treonina digestíveis
title Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
spellingShingle Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
Figueiredo, G. O.
Amino acids
Laying hens
Crude protein
Haugh unit
Aminoácidos
Proteína bruta
Unidade Haugh
Ovos - Qualidade
Galinha - Nutrição
title_short Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
title_full Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
title_fullStr Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
title_full_unstemmed Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
title_sort Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine
author Figueiredo, G. O.
author_facet Figueiredo, G. O.
Bertechini, A. G.
Fassani, E. J.
Rodrigues, P. B.
Brito, J. A. G
Castro, S. F.
author_role author
author2 Bertechini, A. G.
Fassani, E. J.
Rodrigues, P. B.
Brito, J. A. G
Castro, S. F.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Figueiredo, G. O.
Bertechini, A. G.
Fassani, E. J.
Rodrigues, P. B.
Brito, J. A. G
Castro, S. F.
dc.subject.por.fl_str_mv Amino acids
Laying hens
Crude protein
Haugh unit
Aminoácidos
Proteína bruta
Unidade Haugh
Ovos - Qualidade
Galinha - Nutrição
topic Amino acids
Laying hens
Crude protein
Haugh unit
Aminoácidos
Proteína bruta
Unidade Haugh
Ovos - Qualidade
Galinha - Nutrição
description The present study was developed using 864 Hy-Line W36 laying hens (42 to 58 weeks of age) with a randomized experimental design in a 4x3 factorial arrangement, with five replicates and 12 birds per experimental unit and 4 evaluation periods of 28 days each. The digestible lysine levels studied were 0.675%, 0.743%, 0.811% and 0.879%, and the digestible threonine levels were 0.542%, 0.596% and 0.650%. The performance and egg quality was evaluated. There were no significant effects on the egg production, specific gravity, albumen and yolk percentage and total solids in albumen and yolk for birds submitted to the different dietary digestible lysine and threonine levels. There was significant interaction between these amino acids on the egg shell percentage and Haugh unit in fresh eggs. There was a decreasing linear effect on the feed intake with increase of digestible lysine level. Egg weight, egg mass and feed conversion demonstrated a quadratic effect with the increase of the digestible lysine level with the best results in the diets with 0.754, 0.772 and 0.795% of digestible lysine, respectively.
publishDate 2012
dc.date.none.fl_str_mv 2012-06
2017-04-20T18:50:39Z
2017-04-20T18:50:39Z
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 FIGUEIREDO, G. O. et al. Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 64, n. 3, p. 743-750, June 2012.
http://repositorio.ufla.br/jspui/handle/1/12760
identifier_str_mv FIGUEIREDO, G. O. et al. Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 64, n. 3, p. 743-750, June 2012.
url http://repositorio.ufla.br/jspui/handle/1/12760
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais
publisher.none.fl_str_mv Universidade Federal de Minas Gerais
dc.source.none.fl_str_mv Arquivo Brasileiro de Medicina Veterinária e Zootecnia
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439297318223872

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