Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência e Agrotecnologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300022 |
Resumo: | The objective of this study was to evaluate the effect of reduced-crude protein (CP) and available phosphorus (aP) diets, added with phytase and amino acids for broilers in the growing (14 to 21 days old) and retirement (35 to 42 days) phases on nitrogen, potassium and phosphorus balance. Ninety Cobb broilers were distributed in a completely randomized design with three treatments and six replications with five and three birds per experimental unit in the growing and retirement phases, respectively. Diets were elaborated to contain reduced CP and aP levels (19 and 17% CP in the growing phase, with 0.34% aP; and 18 and 16% CP in the retirement phase, with 0.30% aP), supplemented with crystalline amino acids and 500 FTU of phytase/kg diet. These were compared to a control diet (21% CP and 0.46% aP for growing phase and 19% CP and 0.40% aP for retirement phase). The reduction of CP in four percentual units reduced the N excretion and increased the retention of this element, showing that the phytase had no influence on N balance when used the crystalline amino acids in the diets. The phytase reduced the P excretion and increased the retention ones. The potassium excretion decreased in reduced-CP diets, but this excessive reduction decreased the retention of this element, except in the retirement phase. It was concluded that the reduced-CP and aP diets, supplemented with phytase and amino acids, are efficient in reducing the pollutant power of the broilers excrements in the growing and retirement phases of production. |
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Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acidsEnzymephytateenvironmentmetabolismThe objective of this study was to evaluate the effect of reduced-crude protein (CP) and available phosphorus (aP) diets, added with phytase and amino acids for broilers in the growing (14 to 21 days old) and retirement (35 to 42 days) phases on nitrogen, potassium and phosphorus balance. Ninety Cobb broilers were distributed in a completely randomized design with three treatments and six replications with five and three birds per experimental unit in the growing and retirement phases, respectively. Diets were elaborated to contain reduced CP and aP levels (19 and 17% CP in the growing phase, with 0.34% aP; and 18 and 16% CP in the retirement phase, with 0.30% aP), supplemented with crystalline amino acids and 500 FTU of phytase/kg diet. These were compared to a control diet (21% CP and 0.46% aP for growing phase and 19% CP and 0.40% aP for retirement phase). The reduction of CP in four percentual units reduced the N excretion and increased the retention of this element, showing that the phytase had no influence on N balance when used the crystalline amino acids in the diets. The phytase reduced the P excretion and increased the retention ones. The potassium excretion decreased in reduced-CP diets, but this excessive reduction decreased the retention of this element, except in the retirement phase. It was concluded that the reduced-CP and aP diets, supplemented with phytase and amino acids, are efficient in reducing the pollutant power of the broilers excrements in the growing and retirement phases of production.Editora da UFLA2011-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300022Ciência e Agrotecnologia v.35 n.3 2011reponame:Ciência e Agrotecnologia (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLA10.1590/S1413-70542011005000003info:eu-repo/semantics/openAccessGomide,Elisangela MinatiRodrigues,Paulo BorgesZangeronimo,Márcio GilbertoBertechini,Antônio GilbertoSantos,Luziane Moreira dosAlvarenga,Renata Ribeiroeng2011-08-17T00:00:00Zoai:scielo:S1413-70542011000300022Revistahttp://www.scielo.br/cagroPUBhttps://old.scielo.br/oai/scielo-oai.php||renpaiva@dbi.ufla.br|| editora@editora.ufla.br1981-18291413-7054opendoar:2022-11-22T16:31:11.279907Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
title |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
spellingShingle |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids Gomide,Elisangela Minati Enzyme phytate environment metabolism |
title_short |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
title_full |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
title_fullStr |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
title_full_unstemmed |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
title_sort |
Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids |
author |
Gomide,Elisangela Minati |
author_facet |
Gomide,Elisangela Minati Rodrigues,Paulo Borges Zangeronimo,Márcio Gilberto Bertechini,Antônio Gilberto Santos,Luziane Moreira dos Alvarenga,Renata Ribeiro |
author_role |
author |
author2 |
Rodrigues,Paulo Borges Zangeronimo,Márcio Gilberto Bertechini,Antônio Gilberto Santos,Luziane Moreira dos Alvarenga,Renata Ribeiro |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Gomide,Elisangela Minati Rodrigues,Paulo Borges Zangeronimo,Márcio Gilberto Bertechini,Antônio Gilberto Santos,Luziane Moreira dos Alvarenga,Renata Ribeiro |
dc.subject.por.fl_str_mv |
Enzyme phytate environment metabolism |
topic |
Enzyme phytate environment metabolism |
description |
The objective of this study was to evaluate the effect of reduced-crude protein (CP) and available phosphorus (aP) diets, added with phytase and amino acids for broilers in the growing (14 to 21 days old) and retirement (35 to 42 days) phases on nitrogen, potassium and phosphorus balance. Ninety Cobb broilers were distributed in a completely randomized design with three treatments and six replications with five and three birds per experimental unit in the growing and retirement phases, respectively. Diets were elaborated to contain reduced CP and aP levels (19 and 17% CP in the growing phase, with 0.34% aP; and 18 and 16% CP in the retirement phase, with 0.30% aP), supplemented with crystalline amino acids and 500 FTU of phytase/kg diet. These were compared to a control diet (21% CP and 0.46% aP for growing phase and 19% CP and 0.40% aP for retirement phase). The reduction of CP in four percentual units reduced the N excretion and increased the retention of this element, showing that the phytase had no influence on N balance when used the crystalline amino acids in the diets. The phytase reduced the P excretion and increased the retention ones. The potassium excretion decreased in reduced-CP diets, but this excessive reduction decreased the retention of this element, except in the retirement phase. It was concluded that the reduced-CP and aP diets, supplemented with phytase and amino acids, are efficient in reducing the pollutant power of the broilers excrements in the growing and retirement phases of production. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300022 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300022 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1413-70542011005000003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Editora da UFLA |
publisher.none.fl_str_mv |
Editora da UFLA |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.35 n.3 2011 reponame:Ciência e Agrotecnologia (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Ciência e Agrotecnologia (Online) |
collection |
Ciência e Agrotecnologia (Online) |
repository.name.fl_str_mv |
Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
||renpaiva@dbi.ufla.br|| editora@editora.ufla.br |
_version_ |
1799874968776867840 |