Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age

Detalhes bibliográficos
Autor(a) principal: Nunes, Ricardo Vianna
Data de Publicação: 2015
Outros Autores: Agustini, Márcia Antonia Bartolomeu, Takahashi, Sabrina Endo, Murakami, Alice Eiko, Souza, Cleverson De, Schneiders, Sandra Elisa, Polese, Clauber
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19413
Resumo: The dietary requirement of threonine was determined for brown laying hens in the period 50-66 weeks of age, based on performance parameters and quality of eggs. For this we used 150 laying Shaver Brown hens distributed in a completely randomized design with five treatments (0.460; 0.490; 0.520; 0.550 and 0.580%) of digestible threonine, six replications and five birds each. The digestible threonine levels did not affect (p>0.05) feed intake, egg production, egg weight, egg mass or feed conversion kg kg-1, but presented a quadratic effect (p<0.05) on feed conversion dozen kg -1, where the lower conversion was obtained with a supply of 0.521% threonine in the diet. There was no effect of dietary digestible threonine levels (p>0.05) on the yolk and albumen index, specific gravity, yolk percentage, thickness or shell weight per surface area, since the variable Haugh unit displayed linear behavior (p<0.05) and increased with increasing levels of dietary threonine. The percentage of albumen and shell presented a quadratic effect (p<0.05) according to the dietary levels of threonine, and the best levels of these variables were obtained with a supply of 0.520% and 0.521% digestible threonine in the diet. The dietary requirement of threonine for laying hens, aged between 50 and 66 weeks, based on converting food kg kg-1, percentage of albumen and shell is 0.521%
id UEL-11_5b314aa98e54c0d6a0124f01bbbe2459
oai_identifier_str oai:ojs.pkp.sfu.ca:article/19413
network_acronym_str UEL-11
network_name_str Semina. Ciências Agrárias (Online)
repository_id_str
spelling Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of ageExigência nutricional de treonina digestível para poedeiras semipesadas de 50 a 66 semanas de idadeDigestible amino acidLaying hensPerformanceEgg quality.Aminoácido digestívelAves de posturaDesempenhoQualidade de ovo.The dietary requirement of threonine was determined for brown laying hens in the period 50-66 weeks of age, based on performance parameters and quality of eggs. For this we used 150 laying Shaver Brown hens distributed in a completely randomized design with five treatments (0.460; 0.490; 0.520; 0.550 and 0.580%) of digestible threonine, six replications and five birds each. The digestible threonine levels did not affect (p>0.05) feed intake, egg production, egg weight, egg mass or feed conversion kg kg-1, but presented a quadratic effect (p<0.05) on feed conversion dozen kg -1, where the lower conversion was obtained with a supply of 0.521% threonine in the diet. There was no effect of dietary digestible threonine levels (p>0.05) on the yolk and albumen index, specific gravity, yolk percentage, thickness or shell weight per surface area, since the variable Haugh unit displayed linear behavior (p<0.05) and increased with increasing levels of dietary threonine. The percentage of albumen and shell presented a quadratic effect (p<0.05) according to the dietary levels of threonine, and the best levels of these variables were obtained with a supply of 0.520% and 0.521% digestible threonine in the diet. The dietary requirement of threonine for laying hens, aged between 50 and 66 weeks, based on converting food kg kg-1, percentage of albumen and shell is 0.521%A exigência dietética de treonina digestível foi determinada para poedeiras comerciais semipesadas no período de 50 a 66 semanas de idade, com base nos parâmetros de desempenho produtivo e de qualidade de ovos. Para isso foram utilizadas 150 poedeiras semipesadas da linhagem Shaver Brown distribuídas em um delineamento inteiramente casualizado com 5 tratamentos (0,460; 0,490; 0,520; 0,550; e 0,580%) de treonina digestível), seis repetições e cinco aves por unidade experimental. Os níveis de treonina digestível não influenciaram (p>0,05) o consumo de ração, produção de ovos, peso de ovos, massa de ovos e conversão alimentar kg kg-1, mas apresentaram efeito quadrático (p<0,05) sobre a conversão alimentar kg dúzia-1, onde o menor valor de conversão foi obtido com o fornecimento de 0,521% de treonina digestível na dieta. Não foi observado efeito dos níveis dietéticos de treonina digestível (p>0,05) sobre o índice de gema e de albúmen, gravidade específica, porcentagem de gema, espessura e peso da casca por superfície de área, já a variável unidade haugh apresentou comportamento linear (p<0,05), aumentando com o aumento dos níveis de treonina dietéticos. A porcentagem de albúmen e casca apresentaram efeito quadrático (p<0,05) em função dos níveis dietéticos de treonina digestível, sendo que os melhores níveis dessas variáveis foram obtidos com o fornecimento de 0,520 e 0,521% de treonina digestível na dieta. A exigência dietética de treonina digestível para poedeiras semipesadas, com idade entre 50 e 66 semanas, baseada na conversão alimentar kg kg-1, porcentagem de albúmen e casca é de 0,521% UEL2015-12-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Históricaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1941310.5433/1679-0359.2015v36n6p3877Semina: Ciências Agrárias; Vol. 36 No. 6 (2015); 3877-3866Semina: Ciências Agrárias; v. 36 n. 6 (2015); 3877-38661679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19413/17494http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessNunes, Ricardo ViannaAgustini, Márcia Antonia BartolomeuTakahashi, Sabrina EndoMurakami, Alice EikoSouza, Cleverson DeSchneiders, Sandra ElisaPolese, Clauber2022-12-05T11:53:30Zoai:ojs.pkp.sfu.ca:article/19413Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-12-05T11:53:30Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
Exigência nutricional de treonina digestível para poedeiras semipesadas de 50 a 66 semanas de idade
title Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
spellingShingle Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
Nunes, Ricardo Vianna
Digestible amino acid
Laying hens
Performance
Egg quality.
Aminoácido digestível
Aves de postura
Desempenho
Qualidade de ovo.
title_short Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
title_full Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
title_fullStr Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
title_full_unstemmed Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
title_sort Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age
author Nunes, Ricardo Vianna
author_facet Nunes, Ricardo Vianna
Agustini, Márcia Antonia Bartolomeu
Takahashi, Sabrina Endo
Murakami, Alice Eiko
Souza, Cleverson De
Schneiders, Sandra Elisa
Polese, Clauber
author_role author
author2 Agustini, Márcia Antonia Bartolomeu
Takahashi, Sabrina Endo
Murakami, Alice Eiko
Souza, Cleverson De
Schneiders, Sandra Elisa
Polese, Clauber
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Nunes, Ricardo Vianna
Agustini, Márcia Antonia Bartolomeu
Takahashi, Sabrina Endo
Murakami, Alice Eiko
Souza, Cleverson De
Schneiders, Sandra Elisa
Polese, Clauber
dc.subject.por.fl_str_mv Digestible amino acid
Laying hens
Performance
Egg quality.
Aminoácido digestível
Aves de postura
Desempenho
Qualidade de ovo.
topic Digestible amino acid
Laying hens
Performance
Egg quality.
Aminoácido digestível
Aves de postura
Desempenho
Qualidade de ovo.
description The dietary requirement of threonine was determined for brown laying hens in the period 50-66 weeks of age, based on performance parameters and quality of eggs. For this we used 150 laying Shaver Brown hens distributed in a completely randomized design with five treatments (0.460; 0.490; 0.520; 0.550 and 0.580%) of digestible threonine, six replications and five birds each. The digestible threonine levels did not affect (p>0.05) feed intake, egg production, egg weight, egg mass or feed conversion kg kg-1, but presented a quadratic effect (p<0.05) on feed conversion dozen kg -1, where the lower conversion was obtained with a supply of 0.521% threonine in the diet. There was no effect of dietary digestible threonine levels (p>0.05) on the yolk and albumen index, specific gravity, yolk percentage, thickness or shell weight per surface area, since the variable Haugh unit displayed linear behavior (p<0.05) and increased with increasing levels of dietary threonine. The percentage of albumen and shell presented a quadratic effect (p<0.05) according to the dietary levels of threonine, and the best levels of these variables were obtained with a supply of 0.520% and 0.521% digestible threonine in the diet. The dietary requirement of threonine for laying hens, aged between 50 and 66 weeks, based on converting food kg kg-1, percentage of albumen and shell is 0.521%
publishDate 2015
dc.date.none.fl_str_mv 2015-12-09
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Histórica
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19413
10.5433/1679-0359.2015v36n6p3877
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19413
identifier_str_mv 10.5433/1679-0359.2015v36n6p3877
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19413/17494
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 36 No. 6 (2015); 3877-3866
Semina: Ciências Agrárias; v. 36 n. 6 (2015); 3877-3866
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
_version_ 1799306072726437888

Registros relacionados