Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios

Detalhes bibliográficos
Autor(a) principal: Oliveira, David Henrique de
Data de Publicação: 2018
Outros Autores: Naves, Luciana de Paula, Nardelli, Nicole Batelli de Souza, Zangerônimo, Márcio Gilberto, Rodrigues, Paulo Borges
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/34363
Resumo: The objective of this work was to determine the apparent ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and calcium:available phosphorus (Ca:aP) ratios. Two experiments were carried out: one with broilers with 22 to 33 days of age, and the other with broilers with 35 to 42 days. The Ca:aP ratios used were 4.5:1.0, 6.0:1.0, and 7.5:1.0 in the first period, and 3.5:1.0, 5.0:1.0, and 6.5:1.0 in the second. All diets were supplemented with 1,500 units of phytase activity per kilogram of six different sources of microbial phytase. At the end of each experiment, two broilers per replicate were slaughtered to collect the ileal content. In the samples of digested food, the Ca and P contents were determined for later calculation of the apparent ileal digestibility coefficients of these minerals. The Ca:aP ratio influenced the activity of phytases, and the highest digestibility was observed with lower ratios, in both experiments. The phytases that provided greater digestibility coefficients were A, D, and E. In both ages evaluated, the inclusion of phytases in the feed improved the digestibility of Ca and P, which was also affected by the content of calcium and by the phytase source used.
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spelling Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratiosDigestibilidade ileal de cálcio e fósforo em frangos de corte alimentados com rações com diferentes fitases e relações cálcio: fósforo disponívelMicrobial enzymesPhosphorus digestibilityPhytase superdosingStages of creationEnzimas microbianasDigestibilidade do fósforoSuperdosagem de fitaseFases de criaçãoThe objective of this work was to determine the apparent ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and calcium:available phosphorus (Ca:aP) ratios. Two experiments were carried out: one with broilers with 22 to 33 days of age, and the other with broilers with 35 to 42 days. The Ca:aP ratios used were 4.5:1.0, 6.0:1.0, and 7.5:1.0 in the first period, and 3.5:1.0, 5.0:1.0, and 6.5:1.0 in the second. All diets were supplemented with 1,500 units of phytase activity per kilogram of six different sources of microbial phytase. At the end of each experiment, two broilers per replicate were slaughtered to collect the ileal content. In the samples of digested food, the Ca and P contents were determined for later calculation of the apparent ileal digestibility coefficients of these minerals. The Ca:aP ratio influenced the activity of phytases, and the highest digestibility was observed with lower ratios, in both experiments. The phytases that provided greater digestibility coefficients were A, D, and E. In both ages evaluated, the inclusion of phytases in the feed improved the digestibility of Ca and P, which was also affected by the content of calcium and by the phytase source used.O objetivo deste trabalho foi determinar a digestibilidade ileal aparente do cálcio e do fósforo em frangos de corte alimentados com rações com diferentes fitases e relações cálcio:fósforo disponível (Ca:Pd). Foram realizados dois experimentos: um com frangos de 22 a 33 dias de idade, e outro com frangos de 35 a 42 dias. As relações Ca:Pd usadas foram de 4,5:1,0, 6,0:1,0 e 7,5:1,0, no primeiro período, e de 3,5:1,0, 5,0:1,0 e 6,5:1,0, no segundo. Todas as dietas foram suplementadas com 1.500 unidades de atividade de fitase por quilograma de seis diferentes fontes de fitase microbiana. Ao final de cada experimento, duas aves por repetição foram abatidas para a coleta do conteúdo ileal. Nas amostras de digestas, foram determinados os teores de Ca e P para posterior cálculo do coeficiente de digestibilidade ileal aparente destes minerais. A relação Ca:Pd influenciou a atividade das fitases, e a maior digestibilidade foi observada nas menores relações, em ambos os experimentos. As fitases que proporcionaram os maiores coeficientes de digestibilidade foram A, D e E. Em ambas as idades avaliadas, a inclusão de fitases às dietas aumentou a digestibilidade de Ca e P, a qual também foi afetada pelo teor de cálcio e pela fonte de fitase utilizada.Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira2019-05-23T12:16:05Z2019-05-23T12:16:05Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfOLIVEIRA, D. H. de et al. Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 11, 2018.http://repositorio.ufla.br/jspui/handle/1/34363Pesquisa Agropecuária Brasileirareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessOliveira, David Henrique deNaves, Luciana de PaulaNardelli, Nicole Batelli de SouzaZangerônimo, Márcio GilbertoRodrigues, Paulo Borgeseng2019-05-23T12:16:06Zoai:localhost:1/34363Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-05-23T12:16:06Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
Digestibilidade ileal de cálcio e fósforo em frangos de corte alimentados com rações com diferentes fitases e relações cálcio: fósforo disponível
title Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
spellingShingle Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
Oliveira, David Henrique de
Microbial enzymes
Phosphorus digestibility
Phytase superdosing
Stages of creation
Enzimas microbianas
Digestibilidade do fósforo
Superdosagem de fitase
Fases de criação
title_short Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
title_full Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
title_fullStr Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
title_full_unstemmed Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
title_sort Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios
author Oliveira, David Henrique de
author_facet Oliveira, David Henrique de
Naves, Luciana de Paula
Nardelli, Nicole Batelli de Souza
Zangerônimo, Márcio Gilberto
Rodrigues, Paulo Borges
author_role author
author2 Naves, Luciana de Paula
Nardelli, Nicole Batelli de Souza
Zangerônimo, Márcio Gilberto
Rodrigues, Paulo Borges
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, David Henrique de
Naves, Luciana de Paula
Nardelli, Nicole Batelli de Souza
Zangerônimo, Márcio Gilberto
Rodrigues, Paulo Borges
dc.subject.por.fl_str_mv Microbial enzymes
Phosphorus digestibility
Phytase superdosing
Stages of creation
Enzimas microbianas
Digestibilidade do fósforo
Superdosagem de fitase
Fases de criação
topic Microbial enzymes
Phosphorus digestibility
Phytase superdosing
Stages of creation
Enzimas microbianas
Digestibilidade do fósforo
Superdosagem de fitase
Fases de criação
description The objective of this work was to determine the apparent ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and calcium:available phosphorus (Ca:aP) ratios. Two experiments were carried out: one with broilers with 22 to 33 days of age, and the other with broilers with 35 to 42 days. The Ca:aP ratios used were 4.5:1.0, 6.0:1.0, and 7.5:1.0 in the first period, and 3.5:1.0, 5.0:1.0, and 6.5:1.0 in the second. All diets were supplemented with 1,500 units of phytase activity per kilogram of six different sources of microbial phytase. At the end of each experiment, two broilers per replicate were slaughtered to collect the ileal content. In the samples of digested food, the Ca and P contents were determined for later calculation of the apparent ileal digestibility coefficients of these minerals. The Ca:aP ratio influenced the activity of phytases, and the highest digestibility was observed with lower ratios, in both experiments. The phytases that provided greater digestibility coefficients were A, D, and E. In both ages evaluated, the inclusion of phytases in the feed improved the digestibility of Ca and P, which was also affected by the content of calcium and by the phytase source used.
publishDate 2018
dc.date.none.fl_str_mv 2018
2019-05-23T12:16:05Z
2019-05-23T12:16:05Z
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 OLIVEIRA, D. H. de et al. Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 11, 2018.
http://repositorio.ufla.br/jspui/handle/1/34363
identifier_str_mv OLIVEIRA, D. H. de et al. Ileal digestibility of calcium and phosphorus in broilers fed diets with different phytases and Ca: available P ratios. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 11, 2018.
url http://repositorio.ufla.br/jspui/handle/1/34363
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuária Brasileira
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
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