Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)

Detalhes bibliográficos
Autor(a) principal: Cruz,Carlos Eduardo Braga
Data de Publicação: 2012
Outros Autores: Freitas,Ednardo Rodrigues, Farias,Nadja Naiara Pereira, Xavier,Regina Patrícia de Souza, Lima,Jayron dos Santos Correia, Sá,Newton Lima, Braz,Nádia de Melo, Bezerra,Roseane Madeira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900010
Resumo: The effects of neutral detergent fiber levels (NDF) (145, 165, 185 g/kg) were assessed on the bone quality of light-weight and medium-weight laying hens. Eight hundred and forty laying hens were distributed in a completely randomized design in a 2 × 3 factorial arrangement (two strains and three NDF levels) with four replications of 35 birds. At the end of the growth phase, birds were transferred to a laying shed in the same experimental design and each experimental plot consisted of 14 birds. For bone assessment, two birds were selected per plot in the 17th week and one bird in the 35th week for slaughter. After slaughter, drumstick and thigh (legs) were removed and after deboning of the femur and tibia, taken to measurement of their length, weight, Seedor index, resistance, deformity, dry matter, mineral residue and crude protein. The data analysis showed no significant interaction between the factors NDF level and strain for any of the variables assessed at the different phases. The NDF level in the diet did not significantly influence bone growth, quality and composition at the end of the growing and laying phases. Medium-weight birds presented larger and heavier femur and tibia, with a greater Seedor index and less deformity, ash content and protein than the light-weight birds. Resistance did not vary significantly among the strains. A diet intended for laying hens at the growth phase can contain up to 185 g/kg NDF without causing problems in bone development and quality of laying hens.
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spelling Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)alternative feedstuffbone resistanceSeedor indexThe effects of neutral detergent fiber levels (NDF) (145, 165, 185 g/kg) were assessed on the bone quality of light-weight and medium-weight laying hens. Eight hundred and forty laying hens were distributed in a completely randomized design in a 2 × 3 factorial arrangement (two strains and three NDF levels) with four replications of 35 birds. At the end of the growth phase, birds were transferred to a laying shed in the same experimental design and each experimental plot consisted of 14 birds. For bone assessment, two birds were selected per plot in the 17th week and one bird in the 35th week for slaughter. After slaughter, drumstick and thigh (legs) were removed and after deboning of the femur and tibia, taken to measurement of their length, weight, Seedor index, resistance, deformity, dry matter, mineral residue and crude protein. The data analysis showed no significant interaction between the factors NDF level and strain for any of the variables assessed at the different phases. The NDF level in the diet did not significantly influence bone growth, quality and composition at the end of the growing and laying phases. Medium-weight birds presented larger and heavier femur and tibia, with a greater Seedor index and less deformity, ash content and protein than the light-weight birds. Resistance did not vary significantly among the strains. A diet intended for laying hens at the growth phase can contain up to 185 g/kg NDF without causing problems in bone development and quality of laying hens.Sociedade Brasileira de Zootecnia2012-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900010Revista Brasileira de Zootecnia v.41 n.9 2012reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/S1516-35982012000900010info:eu-repo/semantics/openAccessCruz,Carlos Eduardo BragaFreitas,Ednardo RodriguesFarias,Nadja Naiara PereiraXavier,Regina Patrícia de SouzaLima,Jayron dos Santos CorreiaSá,Newton LimaBraz,Nádia de MeloBezerra,Roseane Madeiraeng2012-10-02T00:00:00Zoai:scielo:S1516-35982012000900010Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2012-10-02T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false
dc.title.none.fl_str_mv Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
title Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
spellingShingle Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
Cruz,Carlos Eduardo Braga
alternative feedstuff
bone resistance
Seedor index
title_short Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
title_full Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
title_fullStr Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
title_full_unstemmed Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
title_sort Bone quality of laying hens fed different levels of fiber in the growth phase (7 to 17 weeks of age)
author Cruz,Carlos Eduardo Braga
author_facet Cruz,Carlos Eduardo Braga
Freitas,Ednardo Rodrigues
Farias,Nadja Naiara Pereira
Xavier,Regina Patrícia de Souza
Lima,Jayron dos Santos Correia
Sá,Newton Lima
Braz,Nádia de Melo
Bezerra,Roseane Madeira
author_role author
author2 Freitas,Ednardo Rodrigues
Farias,Nadja Naiara Pereira
Xavier,Regina Patrícia de Souza
Lima,Jayron dos Santos Correia
Sá,Newton Lima
Braz,Nádia de Melo
Bezerra,Roseane Madeira
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Cruz,Carlos Eduardo Braga
Freitas,Ednardo Rodrigues
Farias,Nadja Naiara Pereira
Xavier,Regina Patrícia de Souza
Lima,Jayron dos Santos Correia
Sá,Newton Lima
Braz,Nádia de Melo
Bezerra,Roseane Madeira
dc.subject.por.fl_str_mv alternative feedstuff
bone resistance
Seedor index
topic alternative feedstuff
bone resistance
Seedor index
description The effects of neutral detergent fiber levels (NDF) (145, 165, 185 g/kg) were assessed on the bone quality of light-weight and medium-weight laying hens. Eight hundred and forty laying hens were distributed in a completely randomized design in a 2 × 3 factorial arrangement (two strains and three NDF levels) with four replications of 35 birds. At the end of the growth phase, birds were transferred to a laying shed in the same experimental design and each experimental plot consisted of 14 birds. For bone assessment, two birds were selected per plot in the 17th week and one bird in the 35th week for slaughter. After slaughter, drumstick and thigh (legs) were removed and after deboning of the femur and tibia, taken to measurement of their length, weight, Seedor index, resistance, deformity, dry matter, mineral residue and crude protein. The data analysis showed no significant interaction between the factors NDF level and strain for any of the variables assessed at the different phases. The NDF level in the diet did not significantly influence bone growth, quality and composition at the end of the growing and laying phases. Medium-weight birds presented larger and heavier femur and tibia, with a greater Seedor index and less deformity, ash content and protein than the light-weight birds. Resistance did not vary significantly among the strains. A diet intended for laying hens at the growth phase can contain up to 185 g/kg NDF without causing problems in bone development and quality of laying hens.
publishDate 2012
dc.date.none.fl_str_mv 2012-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-35982012000900010
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
publisher.none.fl_str_mv Sociedade Brasileira de Zootecnia
dc.source.none.fl_str_mv Revista Brasileira de Zootecnia v.41 n.9 2012
reponame:Revista Brasileira de Zootecnia (Online)
instname:Sociedade Brasileira de Zootecnia (SBZ)
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instname_str Sociedade Brasileira de Zootecnia (SBZ)
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institution SBZ
reponame_str Revista Brasileira de Zootecnia (Online)
collection Revista Brasileira de Zootecnia (Online)
repository.name.fl_str_mv Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)
repository.mail.fl_str_mv ||bz@sbz.org.br|| secretariarbz@sbz.org.br
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